Re: [drakelist] Drake Radios Keep You Warm

[AirRadio]

"AirRadio" <[EMAIL PROTECTED]> made an utterance to the drakelist gang
--
Kevin, Snow is a funny white stuff that comes from the sky during the winter 
cold months, When my wife (Filipino) first came to this country, UK, she had 
never seen snow in her life, during her first winter here it snowed a lot, I 
took her to the local shopping centre, during our walk around the centre I 
became aware there was water trailing along behind here. I casually asked 
why she was 'leaking' and discovered she had collected both coat pockets 
full of snow as she wanted to take it back home and keep it. She also asked 
what they were going to do with all the dead trees around as all the leaves 
had fallen off !
Thankfully I also have all my tube/valve radios here in the shack to keep me 
warm during the winter months, not a 3 legged fuse in sight. ahh that warm 
winter glow, 73 Max M0GHQ








--
Submissions:[EMAIL PROTECTED]
Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body
Hopelessly Lost:[EMAIL PROTECTED] - help in body of message
Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
--

Re: [drakelist] Drake Radios Keep You Warm

[Eugene Balinski]

"Eugene Balinski" <[EMAIL PROTECTED]> made an utterance to the drakelist gang
--
It was fun until my snow thrower ate an outside light
buried in a snow bank, and then broke a shear pin.  The
additional inch of ice did not help either..

73,
Gene K1NR

On Sun, 16 Dec 2007 12:22:39 -0500
 Mike Bryce <[EMAIL PROTECTED]> wrote:
> I know I WISH I was there...
> 
> Lots of snow, fleet of Jeeps...
> 
> sounds like fun to me!!
> 
> 
> Mike, WB8VGE
> SunLight Energy Systems
> The Heathkit Shop
> http://www.theheathkitshop.com/
> J e e p
> o|||o
> Note: No trees were killed in the sending of this
> message, but a  large number of electrons were terribly
> inconvenienced
> 
> 
> On Dec 16, 2007, at 8:04 AM, Ron Baker wrote:
> 
> All, in case anyone is interested, its snowing in New
> England. I  already have two feet of snow on the ground
> and the in-coming  Nor'easter storm is dropping about 12"
> of snow per hour, the current  temperature is 6 degrees
> with a 30 MPH wind.
> 
> WISH YOU WERE HERE
> 
> Stop by, I have plenty of shovels.
> 
> Don't forget the Drake Technical net today at 3PM.
> 
> By then I should be up to my eyeballs in snow. ;o)
> 
> 73, Ron / WB4HFN
> 
> 

-
Web mail provided by NuNet, Inc. The Premier National provider.
http://www.nni.com/


--
Submissions:[EMAIL PROTECTED]
Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body
Hopelessly Lost:[EMAIL PROTECTED] - help in body of message
Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
--

Re: [drakelist] ac4 write up

[Garey Barrell]

Garey Barrell <[EMAIL PROTECTED]> made an utterance to the drakelist gang
--
Chuck -

You could, but the fuse would have to be able to clear the 650V B+ to 
open the circuit.  A fuse that is  RATED  to do this is about six inches 
long and costs about $5 each.  The KWS-1 uses one in it's power 
supply.   This problem is why Drake used the 0.82 ohm resistor in the 
L-4B power supply.  It just explodes if the HV (2800 VDC) gets shorted!


This was a good discussion, brought out some ideas which were shot down 
for various reasons.  I must confess that I ran three B-lInes 24 x 7 for 
about five years in autostart teletype service with no failures.  Keep 
in mind that the ONLY failure scenario that affects this is if the bias 
supply ONLY fails completely and suddenly.  As Gary said that doesn't 
happen very often.  I've been running a LOT of Drake gear with a LOT of 
AC-4 power supplies for many hours over the last 40 years, and it hasn't 
happened to me, yet  I only KNOW of it happening a half dozen times 
over all those years, including Gary's.  Usually bias supplies present 
first with increased ripple, drifting Final idle current, VOX hanging, etc.


Probably the best answer is a relay in the primary circuit that has to 
be pulled in by the bias voltage to power the supply.  This could also 
serve to reduce the wear and tear on that difficult to replace power 
switch in the T-4X/TR-4.  There would have to be a provision to 
'over-ride' the relay to close it until the bias voltage was present, 
but that's not insurmountable.


I think the best "practical" answer is to replace those bias filter caps 
that are 40 years old with new ones, and if you leave the room for any 
length of time, turn it off.  Also, if you start to notice weird VOX 
action, hum on the CW signal, etc., check out the power supply!


73, Garey - K4OAH
Glen Allen, VA


Chuck Grandgent wrote:

Thanks Garey,

am replying  directly as might seem like beating a dead horse at this point.

Can we fuse the cathode ?

Sorry to be a pain...

   Chuck, K1OM
  


--
Submissions:[EMAIL PROTECTED]
Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body
Hopelessly Lost:[EMAIL PROTECTED] - help in body of message
Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
--

Re: [drakelist] ac4 write up

[Garey Barrell]

Garey Barrell <[EMAIL PROTECTED]> made an utterance to the drakelist gang
--
When the bias fails, the finals conduct.  The VOX trips because the bias 
is ALSO used to bias off the relay tube.  Bias gone, the relay tube 
conducts, and the relay pulls in.   You know the rest!


73, Garey - K4OAH
Glen Allen, VA

Drake 2-B, 4-B & C-Line Service Supplement CDs




Chuck Grandgent wrote:

"Chuck Grandgent" <[EMAIL PROTECTED]> made an utterance to the drakelist gang
--
Well I have done the AC4R to one of my AC3s.

I am however a 95% CW guy, so how would the VOX trip ?

My habit is to leave the drive down all the way when I leave the room.

   Chuck, K1OM

On Dec 16, 2007 7:58 PM, Gary Poland <[EMAIL PROTECTED]> wrote:
  

"Gary Poland" <[EMAIL PROTECTED]> made an utterance to the drakelist gang
--
Chuck,
   Nothing you can do short of turning the equipment off would prevent the
final tubes to fully conduct if the bias went positive and the VOX trips the
relay. I have had it happen only once in the 15 years I have been using
Drake equipment and I only noticed it after I keyed my TR-6, very high
idling current. Fortunate the VOX didn't trip while I was out of the room.
Best way to prevent a problem is to, at a minimum, recap the bias supply in
the AC-4. In my case I bought just the bare PC boards from the Heath Kit
Shop and my own parts. My five AC-4's and one AC-3 have been rebuilt with
them.

73, Gary W8PU
http://home.cinci.rr.com/w8pu




--
Submissions:[EMAIL PROTECTED]
Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body
Hopelessly Lost:[EMAIL PROTECTED] - help in body of message
Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
--

Re: [drakelist] ac4 write up

[Garey Barrell]

Garey Barrell <[EMAIL PROTECTED]> made an utterance to the drakelist gang
--
Nope...

If B+, screen and filament voltages are applied, and the cathode is 
grounded, the finals will draw however much current the power supply can 
put out until either the fuse blows, the cathode resistor(s) open up, 
the plate choke opens up, or the tubes melt far enough down to 
disconnect the plate cap!!  :-)   Absence of drive has absolutely no 
effect on this scenario.


Probably the weakest link is the 15 ohm cathode resistors.  They are 1W, 
which would reach 2W dissipation at about 360 mA current through each 
tube, which is about 230W in each tube.  Unfortunately, low value carbon 
comp resistors often go DOWN in value when overheated, so the 
dissipation could actually go down as they heated, enabling them to last 
longer!


73, Garey - K4OAH
Glen Allen, VA

Drake 2-B, 4-B & C-Line Service Supplement CDs




Chuck Grandgent wrote:

"Chuck Grandgent" <[EMAIL PROTECTED]> made an utterance to the drakelist gang
--
Alright, here's a thought.

If I have the gain / drive level control all the way down (counter
clockwise), and the bias were to fail, would my finals be safe ?

   Chuck, K1OM

On Dec 16, 2007 11:17 AM, Garey Barrell <[EMAIL PROTECTED]> wrote:
  

Garey Barrell <[EMAIL PROTECTED]> made an utterance to the drakelist gang
--
Geoff -

No, the problem in this case is purely the result of the finals
"saturating" (to use a SS term) when there is no grid bias applied.

They do NOT have an I-DSS like a FET either!

Put another way, a SS final is normally "off" with no bias, and a tube
final is normally "on".

73, Garey - K4OAH
Glen Allen, VA

Drake 2-B, 4-B & C-Line Service Supplement CDs




Geoffrey S. Mendelson wrote:


"Geoffrey S. Mendelson" <[EMAIL PROTECTED]> made an utterance to the drakelist 
gang
--
On Sun, Dec 16, 2007 at 10:24:48AM -0500, Mike Bryce wrote:


  

Do you want to put the protection inside the power supply?



That brings up a question in my mind. Is the actual cause of damage
to the finals the failure of the bias circuit, or is it due to the
finals being overdriven? In that case wouldn't a device in the power
supply which limits the power supplied to the rig to a safe level
be a better idea, or an "overdrive" cut out?

For example, in a transitor rig there is often some sort of
protective circuit to prevent the finals from being destroyed
if they draw too much current. Many Japanese rigs use limiters
o "fold back" circuits.

Ten-Tec does not use one, instead they includea saftey cut out in their
power supplies.

Could a similar circuit be devised and used in this case?

Geoff.

  


--
Submissions:[EMAIL PROTECTED]
Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body
Hopelessly Lost:[EMAIL PROTECTED] - help in body of message
Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
--

Re: [drakelist] ac4 write up

[Gary Poland]

"Gary Poland" <[EMAIL PROTECTED]> made an utterance to the drakelist gang
--
The VOX circuit also uses the negative -65 volts from the AC-4. In the case 
of the TR-4's at least,  the VOX will trip if the bias goes positive. May be 
the same for the T-4X, have to check.


73, Gary 



--
Submissions:[EMAIL PROTECTED]
Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body
Hopelessly Lost:[EMAIL PROTECTED] - help in body of message
Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
--

Re: [drakelist] ac4 write up

[Chuck Grandgent]

"Chuck Grandgent" <[EMAIL PROTECTED]> made an utterance to the drakelist gang
--
Well I have done the AC4R to one of my AC3s.

I am however a 95% CW guy, so how would the VOX trip ?

My habit is to leave the drive down all the way when I leave the room.

   Chuck, K1OM

On Dec 16, 2007 7:58 PM, Gary Poland <[EMAIL PROTECTED]> wrote:
>
> "Gary Poland" <[EMAIL PROTECTED]> made an utterance to the drakelist gang
> --
> Chuck,
>Nothing you can do short of turning the equipment off would prevent the
> final tubes to fully conduct if the bias went positive and the VOX trips the
> relay. I have had it happen only once in the 15 years I have been using
> Drake equipment and I only noticed it after I keyed my TR-6, very high
> idling current. Fortunate the VOX didn't trip while I was out of the room.
> Best way to prevent a problem is to, at a minimum, recap the bias supply in
> the AC-4. In my case I bought just the bare PC boards from the Heath Kit
> Shop and my own parts. My five AC-4's and one AC-3 have been rebuilt with
> them.
>
> 73, Gary W8PU
> http://home.cinci.rr.com/w8pu
>
>
>
>
> --
> Submissions:[EMAIL PROTECTED]
> Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body
> Hopelessly Lost:[EMAIL PROTECTED] - help in body of message
> Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
> --
>

--
Submissions:[EMAIL PROTECTED]
Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body
Hopelessly Lost:[EMAIL PROTECTED] - help in body of message
Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
--

Re: [drakelist] ac4 write up

[Gary Poland]

"Gary Poland" <[EMAIL PROTECTED]> made an utterance to the drakelist gang
--
Chuck,
  Nothing you can do short of turning the equipment off would prevent the 
final tubes to fully conduct if the bias went positive and the VOX trips the 
relay. I have had it happen only once in the 15 years I have been using 
Drake equipment and I only noticed it after I keyed my TR-6, very high 
idling current. Fortunate the VOX didn't trip while I was out of the room. 
Best way to prevent a problem is to, at a minimum, recap the bias supply in 
the AC-4. In my case I bought just the bare PC boards from the Heath Kit 
Shop and my own parts. My five AC-4's and one AC-3 have been rebuilt with 
them.


73, Gary W8PU
http://home.cinci.rr.com/w8pu



--
Submissions:[EMAIL PROTECTED]
Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body
Hopelessly Lost:[EMAIL PROTECTED] - help in body of message
Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
--

Re: [drakelist] Drake Radios may Keep You Warm, but they don't melt snow....

[Jim F.]

"Jim F." <[EMAIL PROTECTED]> made an utterance to the drakelist gang
--
 Here, grab a shovel and I'll show you what snow is !!

Have 2 feet of packed, frozen white stuff from the
plow that is covered with a layer of ice in front of
my car in the driveway.  Beautiful New Hampshire ? 
Let's hear it for global warming.

Heard some of the net tonight...but some awful 
1 sec. pulsating static came on that eventually 
turned to 100% static so I did something else.

Jim / W1FMR



--- KBG Luxford <[EMAIL PROTECTED]> wrote:

> 
> KBG Luxford <[EMAIL PROTECTED]> made an
> utterance to the drakelist gang
>
--
> Snow?  Would somebody please tell me what snow is?
> 
> 73
> Kevin in Melbourne, Australia, where the worst
> winter is like an English 
> summer.
> 
> VK3DAP / ZL2DAP
> 
> 
> 
>
--
> Submissions:[EMAIL PROTECTED]
> Unsubscribe:[EMAIL PROTECTED] -
> unsubscribe drakelist in body
> Hopelessly Lost:[EMAIL PROTECTED] - help in
> body of message
> Zerobeat Web Page:  www.zerobeat.net - sponsored by
> www.tlchost.net
>
--
> 


--
Submissions:[EMAIL PROTECTED]
Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body
Hopelessly Lost:[EMAIL PROTECTED] - help in body of message
Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
--

Re: [drakelist] ac4 write up

[Chuck Grandgent]

"Chuck Grandgent" <[EMAIL PROTECTED]> made an utterance to the drakelist gang
--
Alright, here's a thought.

If I have the gain / drive level control all the way down (counter
clockwise), and the bias were to fail, would my finals be safe ?

   Chuck, K1OM

On Dec 16, 2007 11:17 AM, Garey Barrell <[EMAIL PROTECTED]> wrote:
>
> Garey Barrell <[EMAIL PROTECTED]> made an utterance to the drakelist gang
> --
> Geoff -
>
> No, the problem in this case is purely the result of the finals
> "saturating" (to use a SS term) when there is no grid bias applied.
>
> They do NOT have an I-DSS like a FET either!
>
> Put another way, a SS final is normally "off" with no bias, and a tube
> final is normally "on".
>
> 73, Garey - K4OAH
> Glen Allen, VA
>
> Drake 2-B, 4-B & C-Line Service Supplement CDs
> 
>
>
>
> Geoffrey S. Mendelson wrote:
> > "Geoffrey S. Mendelson" <[EMAIL PROTECTED]> made an utterance to the 
> > drakelist gang
> > --
> > On Sun, Dec 16, 2007 at 10:24:48AM -0500, Mike Bryce wrote:
> >
> >
> >> Do you want to put the protection inside the power supply?
> >>
> >
> > That brings up a question in my mind. Is the actual cause of damage
> > to the finals the failure of the bias circuit, or is it due to the
> > finals being overdriven? In that case wouldn't a device in the power
> > supply which limits the power supplied to the rig to a safe level
> > be a better idea, or an "overdrive" cut out?
> >
> > For example, in a transitor rig there is often some sort of
> > protective circuit to prevent the finals from being destroyed
> > if they draw too much current. Many Japanese rigs use limiters
> > o "fold back" circuits.
> >
> > Ten-Tec does not use one, instead they includea saftey cut out in their
> > power supplies.
> >
> > Could a similar circuit be devised and used in this case?
> >
> > Geoff.
> >
> >
> >
> >
>
>
> --
> Submissions:[EMAIL PROTECTED]
> Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body
> Hopelessly Lost:[EMAIL PROTECTED] - help in body of message
> Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
> --
>

--
Submissions:[EMAIL PROTECTED]
Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body
Hopelessly Lost:[EMAIL PROTECTED] - help in body of message
Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
--

Re: [drakelist] Drake Radios Keep You Warm

[Gary Poland]

"Gary Poland" <[EMAIL PROTECTED]> made an utterance to the drakelist gang
--
Thanks Peter and thank you for checking in!

73, Gary W8PU
http://home.cinci.rr.com/w8pu



--
Submissions:[EMAIL PROTECTED]
Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body
Hopelessly Lost:[EMAIL PROTECTED] - help in body of message
Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
--

Re: [drakelist] Drake Radios Keep You Warm

[KBG Luxford]

KBG Luxford <[EMAIL PROTECTED]> made an utterance to the drakelist gang
--
Snow?  Would somebody please tell me what snow is?

73
Kevin in Melbourne, Australia, where the worst winter is like an English 
summer.


VK3DAP / ZL2DAP



--
Submissions:[EMAIL PROTECTED]
Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body
Hopelessly Lost:[EMAIL PROTECTED] - help in body of message
Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
--

Re: [drakelist] L-4B on AM

[Jim Shorney]

"Jim Shorney" <[EMAIL PROTECTED]> made an utterance to the drakelist gang
--
On Sun, 16 Dec 2007 21:20:51 -, AirRadio wrote:

>Jim, Thanks for the note, Yes I fully understand the carrier input etc

Yes, I thought you might. I Googled you before I responded just to make sure
you weren't some CBer looking to walk taller :)

>I 
>was aiming for roughly 300w carrier maybe that is pushing the L-4b too hard, 


300 watts carrier seems to be within the specs. As for how well the L4B
handles it, perhaps one of the others can answer; I've never done it,
although I did try it briefly with my NCL2000 one time. 

73

-Jim




-- 
Jim Shorney  -->.<--Put complaints in this box
jshorney (at) inebraska.com
Ham Radio NU0C
Lincoln, NE, USA
EN10ps
http://incolor.inetnebr.com/jshorney/


--
Submissions:[EMAIL PROTECTED]
Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body
Hopelessly Lost:[EMAIL PROTECTED] - help in body of message
Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
--

Re: [drakelist] L-4B on AM

[AirRadio]

"AirRadio" <[EMAIL PROTECTED]> made an utterance to the drakelist gang
--
Jim, Thanks for the note, Yes I fully understand the carrier input etc, what 
I meant to say and put it badly was by how much was 100w too much, I did 
guess that 25-30w input was probably about right. maybe much less. I have a 
Collins ART-13 which I use regularly on AM nets and wondered how much I 
would have to attenuate it to run a sensible output with the Drake. Maybe it 
is not worth it but possibly if the Drake puts out a significant carrier, I 
was aiming for roughly 300w carrier maybe that is pushing the L-4b too hard, 
regards Max
- Original Message - 
From: "Jim Shorney" <[EMAIL PROTECTED]>

To: <[EMAIL PROTECTED]>
Sent: Sunday, December 16, 2007 7:51 PM
Subject: Re: [drakelist] L-4B on AM




"Jim Shorney" <[EMAIL PROTECTED]> made an utterance to the drakelist 
gang

--
On Sun, 16 Dec 2007 18:18:29 -, AirRadio wrote:

Hi gang, Has or does anyone run an L-4B on AM, if so what is the max 
output to the antenna expected with 100w carrier input, having said that 
is 100w too much for the input, regards Max



Yes, 100 watts is too much. You need to understand the PEP-to-carrier 
ratio

involved with AM. The manual states that with 100% modulated AM (I assume
this to mean full-carrier, both sidebands), the transmitter should be
adjusted to produce 500 watts DC plate input in the amplifier. This
translates to 250-300 watts carrier output. If you are using a Drake
controlled-carrier AM transmitter, adjust everything per manual specs and 
you

should be OK, but in any case do not exceed the maximum PEP ratings of the
amplifier or the maximum legal limit allowed by your licence, whichever is
lower.

I'm sure one of the gurus who lurk here will come up with a more complete
answer...

73

-Jim

--
Ham Radio NU0C
TR7/RV7, TR6/RV6, T4XC/R4C, L4B, NCL2000, SB104A, R390A, GT550A/RV550A, 
HyGain 3750, IBM PS/2 - all vintage, all the time!


HyGain 3750 User's Group - http://groups.yahoo.com/group/HyGain_3750/


--
Submissions:[EMAIL PROTECTED]
Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body
Hopelessly Lost:[EMAIL PROTECTED] - help in body of message
Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
--





--
Submissions:[EMAIL PROTECTED]
Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body
Hopelessly Lost:[EMAIL PROTECTED] - help in body of message
Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
--

RE: [drakelist] Drake Radios Keep You Warm

[Peter Bent]

"Peter Bent" <[EMAIL PROTECTED]> made an utterance to the drakelist gang
--
Hi Gary,
Well managed net and good to finally meet you == had to leave and
"mow the snow"!! 73-- de N2CME
Peter

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Gary Poland
Sent: Sunday, December 16, 2007 9:13 AM
To: [EMAIL PROTECTED]
Subject: Re: [drakelist] Drake Radios Keep You Warm


"Gary Poland" <[EMAIL PROTECTED]> made an utterance to the drakelist
gang
--
Ron,
  We only got about 4 inches here yesterday but it was enough to try out the

new JD lawn tractor for snow removal, the Wheel Horse got a winter break for

the first time in 13 years. By the way AC-4's make for good foot warmers if 
stacked on the floor under the operating position ... HI HI.
   I have the net today if I can here anyone ...

73, Gary W8PU
http://home.cinci.rr.com/w8pu







--
Submissions:[EMAIL PROTECTED]
Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body
Hopelessly Lost:[EMAIL PROTECTED] - help in body of message
Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
--



--
Submissions:[EMAIL PROTECTED]
Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body
Hopelessly Lost:[EMAIL PROTECTED] - help in body of message
Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
--

Re: [drakelist] L-4B on AM

[Jim Shorney]

"Jim Shorney" <[EMAIL PROTECTED]> made an utterance to the drakelist gang
--
On Sun, 16 Dec 2007 18:18:29 -, AirRadio wrote:

>Hi gang, Has or does anyone run an L-4B on AM, if so what is the max output to 
>the antenna expected with 100w carrier input, having said that is 100w too 
>much for the input, regards Max


Yes, 100 watts is too much. You need to understand the PEP-to-carrier ratio
involved with AM. The manual states that with 100% modulated AM (I assume
this to mean full-carrier, both sidebands), the transmitter should be
adjusted to produce 500 watts DC plate input in the amplifier. This
translates to 250-300 watts carrier output. If you are using a Drake
controlled-carrier AM transmitter, adjust everything per manual specs and you
should be OK, but in any case do not exceed the maximum PEP ratings of the
amplifier or the maximum legal limit allowed by your licence, whichever is
lower.

I'm sure one of the gurus who lurk here will come up with a more complete
answer...

73

-Jim

--
Ham Radio NU0C
TR7/RV7, TR6/RV6, T4XC/R4C, L4B, NCL2000, SB104A, R390A, GT550A/RV550A, HyGain 
3750, IBM PS/2 - all vintage, all the time!

HyGain 3750 User's Group - http://groups.yahoo.com/group/HyGain_3750/


--
Submissions:[EMAIL PROTECTED]
Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body
Hopelessly Lost:[EMAIL PROTECTED] - help in body of message
Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
--

Re: [drakelist] Drake Manual source?

[Howard Traxler]

"Howard Traxler" <[EMAIL PROTECTED]> made an utterance to the drakelist gang
--
Thank you very much.
Howard K. Traxler, Technology Specialist
www.TraxlerEnterprises.com
/*--  THINK GOD  --*/

- Original Message - 
From: "Dino Papas" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Sunday, December 16, 2007 8:20 AM
Subject: Re: [drakelist] Drake Manual source?


:
: Dino Papas <[EMAIL PROTECTED]> made an utterance to the drakelist gang
: --
: Two seconds on Google:
:
: http://www.wb4hfn.com/
:
: http://www.dproducts.be/DRAKE_MUSEUM/
:
: Dino KL0S/4
:
: --
: Submissions:[EMAIL PROTECTED]
: Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body
: Hopelessly Lost:[EMAIL PROTECTED] - help in body of message
: Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
: --
:
:
: -- 
: No virus found in this incoming message.
: Checked by AVG Free Edition.
: Version: 7.5.503 / Virus Database: 269.17.4/1187 - Release Date: 
12/16/2007 11:36 AM
:
: 


--
Submissions:[EMAIL PROTECTED]
Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body
Hopelessly Lost:[EMAIL PROTECTED] - help in body of message
Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
--

[drakelist] L-4B on AM

[AirRadio]

Hi gang, Has or does anyone run an L-4B on AM, if so what is the max output to 
the antenna expected with 100w carrier input, having said that is 100w too much 
for the input, regards Max

Re: [drakelist] Duh! I forgot to ask what Freq? is the net on today

[Gypsymt34]

7.238  + / -



**See AOL's top rated recipes 
(http://food.aol.com/top-rated-recipes?NCID=aoltop000304)

Re: [drakelist] Duh! I forgot to ask what Freq? is the net on today

[Kc9cdt]

[EMAIL PROTECTED] made an utterance to the drakelist gang
--
 


**See AOL's top rated recipes 
(http://food.aol.com/top-rated-recipes?NCID=aoltop000304)

--
Submissions:[EMAIL PROTECTED]
Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body
Hopelessly Lost:[EMAIL PROTECTED] - help in body of message
Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
--

Re: [drakelist] what time (and zone) is the Drake net today?

[Gypsymt34]

 
[EMAIL PROTECTED] writes:


 
3 PM this afternoon   EST  
2000 Z



**See AOL's top rated recipes 
(http://food.aol.com/top-rated-recipes?NCID=aoltop000304)

Re: [drakelist] what time (and zone) is the Drake net today?

[Kc9cdt]

[EMAIL PROTECTED] made an utterance to the drakelist gang
--
 


**See AOL's top rated recipes 
(http://food.aol.com/top-rated-recipes?NCID=aoltop000304)

--
Submissions:[EMAIL PROTECTED]
Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body
Hopelessly Lost:[EMAIL PROTECTED] - help in body of message
Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
--

Re: [drakelist] Drake Radios Keep You Warm

[Mike Bryce]

I know I WISH I was there...

Lots of snow, fleet of Jeeps...

sounds like fun to me!!


Mike, WB8VGE
SunLight Energy Systems
The Heathkit Shop
http://www.theheathkitshop.com/
J e e p
o|||o
Note: No trees were killed in the sending of this message, but a  
large number of electrons were terribly inconvenienced



On Dec 16, 2007, at 8:04 AM, Ron Baker wrote:

All, in case anyone is interested, its snowing in New England. I  
already have two feet of snow on the ground and the in-coming  
Nor'easter storm is dropping about 12" of snow per hour, the current  
temperature is 6 degrees with a 30 MPH wind.


WISH YOU WERE HERE

Stop by, I have plenty of shovels.

Don't forget the Drake Technical net today at 3PM.

By then I should be up to my eyeballs in snow. ;o)

73, Ron / WB4HFN

Re: [drakelist] ac4 write up

[Garey Barrell]

Garey Barrell <[EMAIL PROTECTED]> made an utterance to the drakelist gang
--
Geoff -

No, the problem in this case is purely the result of the finals 
"saturating" (to use a SS term) when there is no grid bias applied. 


They do NOT have an I-DSS like a FET either!

Put another way, a SS final is normally "off" with no bias, and a tube 
final is normally "on".


73, Garey - K4OAH
Glen Allen, VA

Drake 2-B, 4-B & C-Line Service Supplement CDs




Geoffrey S. Mendelson wrote:

"Geoffrey S. Mendelson" <[EMAIL PROTECTED]> made an utterance to the drakelist 
gang
--
On Sun, Dec 16, 2007 at 10:24:48AM -0500, Mike Bryce wrote:

  

Do you want to put the protection inside the power supply?



That brings up a question in my mind. Is the actual cause of damage
to the finals the failure of the bias circuit, or is it due to the 
finals being overdriven? In that case wouldn't a device in the power

supply which limits the power supplied to the rig to a safe level
be a better idea, or an "overdrive" cut out?

For example, in a transitor rig there is often some sort of
protective circuit to prevent the finals from being destroyed
if they draw too much current. Many Japanese rigs use limiters
o "fold back" circuits.

Ten-Tec does not use one, instead they includea saftey cut out in their
power supplies.

Could a similar circuit be devised and used in this case?

Geoff.



  


--
Submissions:[EMAIL PROTECTED]
Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body
Hopelessly Lost:[EMAIL PROTECTED] - help in body of message
Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
--

Re: [drakelist] ac4 write up

[Garey Barrell]

Garey Barrell <[EMAIL PROTECTED]> made an utterance to the drakelist gang
--
Mike -

Good point!  :-)

A better solution is to just install an AC-4R in the power supply, make 
sure the Jones connector is pushed fully on (they really ARE tough to 
remove when fully engaged), and get on the air!


Another answer for the connector question is to make sure that the cable 
isn't "hanging" from the connector, e.g., lay it on the table, lace it 
to a bundle or to the transmitter ground wire.


73, Garey - K4OAH
Glen Allen, VA

Drake 2-B, 4-B & C-Line Service Supplement CDs




Mike Bryce wrote:
There's been some good suggestions on how to monitor the bias supply 
and prevent damage when it goes bye bye.


but..

the first thing everyone needs to take into consideration is this. 


Do you want to put the protection inside the power supply?

Or inside the rig?

the problem with a loose connector cooking the radio would not have 
been solved by a circuit in the power supply.


on the other hand...

a pcb wired inside the rig must have the dimensions to fit EVERY Drake 
rig.


To use such a design would require a major rewire of the power socket, 
adding the new pcb, and then rewiring the rig.


WHile it's known that loosing the bias will damage the tubes (PA) is 
the solution worth the effort?



Mike, WB8VGE

SunLight Energy Systems

The Heathkit Shop

http://www.theheathkitshop.com/

J e e p

o|||o 

Note: No trees were killed in the sending of this message, but a large 
number of electrons were terribly inconvenienced







No virus found in this incoming message.
Checked by AVG Free Edition. 
Version: 7.5.503 / Virus Database: 269.17.2/1185 - Release Date: 12/15/2007 12:00 PM
  


--
Submissions:[EMAIL PROTECTED]
Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body
Hopelessly Lost:[EMAIL PROTECTED] - help in body of message
Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
--

Re: [drakelist] Drake Radios Keep You Warm

[VE3ES]

VE3ES <[EMAIL PROTECTED]> made an utterance to the drakelist gang
--

About 8" of the white stuff to the north of you Gary up here in 
Windsor, Ontario.  And more coming.  My first car with all-wheel 
drive.  Ford Motor Company to the rescue.  Now if I can just find a 
way to mount a TR-4 into a Ford Freestyle


Bill VE3ES



At 09:13 AM 12/16/2007, Gary Poland wrote:


"Gary Poland" <[EMAIL PROTECTED]> made an utterance to the drakelist gang
--
Ron,
 We only got about 4 inches here yesterday but it was enough to try 
out the new JD lawn tractor for snow removal, the Wheel Horse got a 
winter break for the first time in 13 years. By the way AC-4's make 
for good foot warmers if stacked on the floor under the operating 
position ... HI HI.

  I have the net today if I can here anyone ...

73, Gary W8PU
http://home.cinci.rr.com/w8pu







--
Submissions:[EMAIL PROTECTED]
Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body
Hopelessly Lost:[EMAIL PROTECTED] - help in body of message
Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
--



--
Submissions:[EMAIL PROTECTED]
Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body
Hopelessly Lost:[EMAIL PROTECTED] - help in body of message
Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
--

Re: [drakelist] Drake Radios Keep You Warm

[Bill Ellis]

Actually, having moved here from NW Indiana, I don't miss what you have. It's 
60 degrees, no snow, and I sold/gave away my snow shovels.

Wish you were here.

Bill Ellis, WB9CAC
Tempe, AZ

Ron Baker <[EMAIL PROTECTED]> wrote:  All, in case anyone is interested, 
its  snowing in New England. I already have two feet of snow on the ground and 
the  in-coming Nor'easter storm is dropping about 12" of snow per hour, the 
current  temperature is 6 degrees with a 30 MPH wind. 
 WISH YOU WERE HERE
 Stop by, I have plenty of  shovels.
 Don't forget the Drake Technical net  today at 3PM.
 By then I should be up to my eyeballs  in snow. ;o)
 73, Ron /  WB4HFN



   
-
Looking for last minute shopping deals?  Find them fast with Yahoo! Search.

Re: [drakelist] t4xb ssb filter problem (still)

[Garey Barrell]

Garey Barrell <[EMAIL PROTECTED]> made an utterance to the drakelist gang
--
I must have missed this question..

The Lower SSB filter is at the "bottom" of the "U-shaped" bracket and 
the USB is at the open end in the T-4X(any).


The TR-4 doesn't really have Upper and Lower filters as the produced SSB 
changes depending upon the band because of the mixing scheme used.  They 
ARE however marked U and L!  The U filter is closest to the bandswitch.


73, Garey - K4OAH
Glen Allen, VA

Drake 2-B, 4-B & C-Line Service Supplement CDs




Gary Poland wrote:


"Gary Poland" <[EMAIL PROTECTED]> made an utterance to the 
drakelist gang

--
Carey,
  I dont  have anything apart at the moment to check, so I can't tell 
you which filter is on top, but the filters should be marked with 
-2.4L and -2.4U. The lower sideband filter is used in the LSB position 
and vice versa. The TR-4 is a bit different in that either filter, L 
or U, can be used for the opposite sideband depending on the band. 
Sorry I cant be of more help.


73, Gary



--
Submissions:[EMAIL PROTECTED]
Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body
Hopelessly Lost:[EMAIL PROTECTED] - help in body of message
Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
--

Re: [drakelist] ac4 write up

[Garey Barrell]

Garey Barrell <[EMAIL PROTECTED]> made an utterance to the drakelist gang
--
Ron -

That would work, there would be a pulse of high current, but would fade 
pretty quickly as the filaments cooled.


I'd rather avoid a relay, since it's mechanical, and the one time it HAS 
to work, it doesn't!  It should only have to work ONCE, but to be worth 
the trouble it's gotta work!


On the other hand, a relay could just as easily be put in the primary 
side, and would serve to protect the switch in the transmitter as well.


73, Garey - K4OAH
Glen Allen, VA



Ron Wagner wrote:


Ron Wagner <[EMAIL PROTECTED]> made an utterance to the drakelist gang
--
Gary,
I looked at this some years ago.  I had a design started that would 
drop the filiament voltage off the rig.  Kind of hard to run a tube 
w/o a heater.  You would have a 2-3 second delay looking for bias 
voltage, and if not there relay off the filaments.  Looking in the rig 
would quickly tell you what was going on.  I kind of like to play with 
the low voltages myself. 73,

Ron WD8SBB




--
Submissions:[EMAIL PROTECTED]
Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body
Hopelessly Lost:[EMAIL PROTECTED] - help in body of message
Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
--

Re: [drakelist] Drake Radios Keep You Warm

[K9SQG]

[EMAIL PROTECTED] made an utterance to the drakelist gang
--
You think you have it bad?!  What about the folks in Florida when the 
temperature dips to 50 degrees, without snow?!   And you think you have it bad?!
**See AOL's top rated recipes 
(http://food.aol.com/top-rated-recipes?NCID=aoltop000304)

--
Submissions:[EMAIL PROTECTED]
Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body
Hopelessly Lost:[EMAIL PROTECTED] - help in body of message
Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
--

Re: [drakelist] ac4 write up

[Geoffrey S. Mendelson]

"Geoffrey S. Mendelson" <[EMAIL PROTECTED]> made an utterance to the drakelist 
gang
--
On Sun, Dec 16, 2007 at 10:24:48AM -0500, Mike Bryce wrote:

> Do you want to put the protection inside the power supply?

That brings up a question in my mind. Is the actual cause of damage
to the finals the failure of the bias circuit, or is it due to the 
finals being overdriven? In that case wouldn't a device in the power
supply which limits the power supplied to the rig to a safe level
be a better idea, or an "overdrive" cut out?

For example, in a transitor rig there is often some sort of
protective circuit to prevent the finals from being destroyed
if they draw too much current. Many Japanese rigs use limiters
o "fold back" circuits.

Ten-Tec does not use one, instead they includea saftey cut out in their
power supplies.

Could a similar circuit be devised and used in this case?

Geoff.



-- 
Geoffrey S. Mendelson, Jerusalem, Israel [EMAIL PROTECTED]  N3OWJ/4X1GM
IL Voice: (07)-7424-1667 U.S. Voice: 1-215-821-1838 
Visit my 'blog at http://geoffstechno.livejournal.com/

--
Submissions:[EMAIL PROTECTED]
Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body
Hopelessly Lost:[EMAIL PROTECTED] - help in body of message
Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
--

[drakelist] AC4R writeup

[Don Cunningham]

"Don Cunningham" <[EMAIL PROTECTED]> made an utterance to the drakelist gang
--
Congratulations on the fine article, Mike.  Now maybe I will get the 
ambition to get the one I bought a couple of years ago installed in the C 
Line AC4, hi.  How about a "celebrate the writeup sale", hi hi.  Seriously, 
thanks for a NICE solution to our old power supply problems.

73,
Don, WB5HAK 



--
Submissions:[EMAIL PROTECTED]
Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body
Hopelessly Lost:[EMAIL PROTECTED] - help in body of message
Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
--

Re: [drakelist] ac4 write up

[Mike Bryce]

There's been some good suggestions on how to monitor the bias supply  
and prevent damage when it goes bye bye.


but..

the first thing everyone needs to take into consideration is this.

Do you want to put the protection inside the power supply?

Or inside the rig?

the problem with a loose connector cooking the radio would not have  
been solved by a circuit in the power supply.


on the other hand...

a pcb wired inside the rig must have the dimensions to fit EVERY  
Drake rig.


To use such a design would require a major rewire of the power  
socket, adding the new pcb, and then rewiring the rig.


WHile it's known that loosing the bias will damage the tubes (PA) is  
the solution worth the effort?



Mike, WB8VGE
SunLight Energy Systems
The Heathkit Shop
http://www.theheathkitshop.com/
J e e p
o|||o
Note: No trees were killed in the sending of this message, but a  
large number of electrons were terribly inconvenienced

Re: [drakelist] Drake Manual source?

[Dino Papas]

Dino Papas <[EMAIL PROTECTED]> made an utterance to the drakelist gang
--
Two seconds on Google:

http://www.wb4hfn.com/

http://www.dproducts.be/DRAKE_MUSEUM/

Dino KL0S/4

--
Submissions:[EMAIL PROTECTED]
Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body
Hopelessly Lost:[EMAIL PROTECTED] - help in body of message
Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
--

Re: [drakelist] Drake Manual source?

[Howard Traxler]

"Howard Traxler" <[EMAIL PROTECTED]> made an utterance to the drakelist gang
--
At what web addresses will I find WB4HFN and Jim Cherry's "Drake Virtual 
Museum"?  I guess I'm newer here than I thought.
Thanks.
WA9RYF

- Original Message - 
From: "Ron Baker" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Sunday, December 16, 2007 7:23 AM
Subject: RE: [drakelist] Drake Manual source?


: All,  just a reminder, my Drake website has all the Drake
: manuals on-line and some of them are available in .pdf
: format.Also , Jim Cherry's "Drake Virtual Museum"
: website has several of the Drake manuals available in .pdf
: format.
:
: Ron / WB4HFN
:
:  _
:
: From: [EMAIL PROTECTED]
: [mailto:[EMAIL PROTECTED] On Behalf Of Chuck
: Grandgent
: Sent: Sunday, December 16, 2007 8:10 AM
: To: [EMAIL PROTECTED]
: Subject: Re: [drakelist] Drake Manual source?
:
:
: Looks like BAMA is dropping the DJVU in favor of .PDF.
:
:   Chuck, K1OM
:
:
: On Dec 15, 2007 11:22 PM, Howard Traxler
: <[EMAIL PROTECTED] > wrote:
:
:
:
: "Howard Traxler" <[EMAIL PROTECTED]
:  > made an utterance to the
: drakelist gang
: 
: --
: Has anyone looked at
: http://bama.sbc.edu/
: ?  I downloaded a few from there.  They are image files with
: a djvu
: extention.  It seems to be nonstandard but there is a
: program for displaying
: the files.  One can also print from this program--which I
: have done.  dONE
: IT so that I could scan and ocr them to grab the text out of
: them.  Have not
: yet evaluated any of the final ocr results.
:
: 73, WA9RYF
:
:
: - Original Message -
: From: < [EMAIL PROTECTED]  >
: To: <[EMAIL PROTECTED]>
:
: Sent: Saturday, December 15, 2007 5:42 PM
: Subject: [drakelist] Drake Manual source?
:
:
:
:: It has been a while since I had to purchase BA manuals.
: Since originals
: are
:: extremely rare I would be looking for high quality
: reproductions (R-4B,
:: T-4XB,MN-2000). I have found several GOOGLing but
: difficult to assess the
: quality,
:: particularly the photographs and schematics. I am hoping
: the LIST could
: make
:: some recommendations.
::
:: Thank you
::
:: Alan KB7MBI
::
::
::
:: **See AOL's top rated
: recipes
:
::
: (http://food.aol.com/top-rated-recipes?NCID=aoltop000300
: 0004)
::
:
:
: 
:  
:
:
: No virus found in this incoming message.
: Checked by AVG Free Edition.
: Version: 7.5.503 / Virus Database: 269.17.2/1185 - Release
: Date: 12/15/2007
: 12:00 PM
:
:
:
: 
: --
: Submissions:[EMAIL PROTECTED]
: Unsubscribe:  
: [EMAIL PROTECTED] - unsubscribe drakelist in body
: Hopelessly Lost:[EMAIL PROTECTED] - help in body of
: message
: Zerobeat Web Page:   www.zerobeat.net
:   - sponsored by www.tlchost.net
: 
: --
:
:
:
:





No virus found in this incoming message.
Checked by AVG Free Edition.
Version: 7.5.503 / Virus Database: 269.17.2/1185 - Release Date: 12/15/2007 
12:00 PM


--
Submissions:[EMAIL PROTECTED]
Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body
Hopelessly Lost:[EMAIL PROTECTED] - help in body of message
Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
--

Re: [drakelist] Drake Radios Keep You Warm

[Gary Poland]

"Gary Poland" <[EMAIL PROTECTED]> made an utterance to the drakelist gang
--
Ron,
 We only got about 4 inches here yesterday but it was enough to try out the 
new JD lawn tractor for snow removal, the Wheel Horse got a winter break for 
the first time in 13 years. By the way AC-4's make for good foot warmers if 
stacked on the floor under the operating position ... HI HI.

  I have the net today if I can here anyone ...

73, Gary W8PU
http://home.cinci.rr.com/w8pu







--
Submissions:[EMAIL PROTECTED]
Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body
Hopelessly Lost:[EMAIL PROTECTED] - help in body of message
Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
--

Re: [drakelist] t4xb ssb filter problem (still)

[Gary Poland]

"Gary Poland" <[EMAIL PROTECTED]> made an utterance to the drakelist gang
--
Carey,
  I dont  have anything apart at the moment to check, so I can't tell you 
which filter is on top, but the filters should be marked with -2.4L 
and -2.4U. The lower sideband filter is used in the LSB position and vice 
versa. The TR-4 is a bit different in that either filter, L or U, can be 
used for the opposite sideband depending on the band. Sorry I cant be of 
more help.


73, Gary 



--
Submissions:[EMAIL PROTECTED]
Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body
Hopelessly Lost:[EMAIL PROTECTED] - help in body of message
Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
--

Re: [drakelist] Drake Manual source's

[Gypsymt34]

 
Gypsymt34 writes:

Took a fast look..at my available sights.
.
The mirror sight for BAMA _http://bama.edebris.com/manuals_ 
(http://bama.edebris.com/manuals) (complete list)
 
The other one I have used is  DK Mods_www.mods.dk/_ (http://www.mods.dk/) 
   You can also get there  through  _www.dxzone.com_ (http://www.dxzone.com/) 
Carl/ WD8NHK



 



**See AOL's top rated recipes 
(http://food.aol.com/top-rated-recipes?NCID=aoltop000304)

RE: [drakelist] Drake Radios Keep You Warm

[Peter Bent]

Hi Ron, Dick

 

Misery likes company. But not too bad down here in central NY -
8.5 inches on the ground. Sleeting now.. bad roads.  Nice day to stay at the
radio and the computer.. Temp dropped top 1.8 F  --  Turn on all the tube
radios and keep warm!! 

 

  _  

From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of DW Harms
Sent: Sunday, December 16, 2007 8:34 AM
To: [EMAIL PROTECTED]
Subject: RE: [drakelist] Drake Radios Keep You Warm

 

Hi Ron,

 

We see ice and lots of snow in the US on the news here in Europe , looks
rather dramatic!. I can tell you that winter is here too. We have
temperatures of minus 4 Celcius in nights so we start dreaming of our
national 200 km skatingtour again hi! I am allready training ;)

There is no snow however, sky is clear blue...

And you are right, switch on those Drakes to keep our hands warm!

 

73, Dick PA2DW

 

  _  

Van: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Namens Ron Baker
Verzonden: zondag 16 december 2007 14:04
Aan: [EMAIL PROTECTED]
Onderwerp: [drakelist] Drake Radios Keep You Warm

All, in case anyone is interested, its snowing in New England. I already
have two feet of snow on the ground and the in-coming Nor'easter storm is
dropping about 12" of snow per hour, the current temperature is 6 degrees
with a 30 MPH wind. 

WISH YOU WERE HERE

Stop by, I have plenty of shovels.

Don't forget the Drake Technical net today at 3PM.

By then I should be up to my eyeballs in snow. ;o)

73, Ron / WB4HFN


  has notified the sender that this
message has been received.

 

Re: [drakelist] Drake Manual source?

[Gypsymt34]

[EMAIL PROTECTED] writes:

Has  anyone looked at _http://bama.sbc.edu/_ (http://bama.sbc.edu/) ?  
I have

I  downloaded a few from there.  They are image files with a djvu  extention. 
 
Many are in .pdf format, if you use the mirror sight in particular.
73,  WD8NHK

 



**See AOL's top rated recipes 
(http://food.aol.com/top-rated-recipes?NCID=aoltop000304)

RE: [drakelist] Drake Radios Keep You Warm

[DW Harms]

Hi Ron,
 
We see ice and lots of snow in the US on the news here in Europe , looks
rather dramatic!. I can tell you that winter is here too. We have
temperatures of minus 4 Celcius in nights so we start dreaming of our
national 200 km skatingtour again hi! I am allready training ;)
There is no snow however, sky is clear blue...
And you are right, switch on those Drakes to keep our hands warm!
 
73, Dick PA2DW

  _  

Van: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Namens Ron Baker
Verzonden: zondag 16 december 2007 14:04
Aan: [EMAIL PROTECTED]
Onderwerp: [drakelist] Drake Radios Keep You Warm



All, in case anyone is interested, its snowing in New England. I already
have two feet of snow on the ground and the in-coming Nor'easter storm is
dropping about 12" of snow per hour, the current temperature is 6 degrees
with a 30 MPH wind. 

WISH YOU WERE HERE

Stop by, I have plenty of shovels.

Don't forget the Drake Technical net today at 3PM.

By then I should be up to my eyeballs in snow. ;o)

73, Ron / WB4HFN

Re: [drakelist] Drake Manual source?

[john]

john <[EMAIL PROTECTED]> made an utterance to the drakelist gang
--
Hooray!

John K5MO




At 08:10 AM 12/16/2007, you wrote:

Looks like BAMA is dropping the DJVU in favor of .PDF.

   Chuck, K1OM

On Dec 15, 2007 11:22 PM, Howard Traxler <[EMAIL PROTECTED]> wrote:

>
> "Howard Traxler" <[EMAIL PROTECTED]> made an utterance to the
> drakelist gang
> --
> Has anyone looked at
> http://bama.sbc.edu/


WARNING: The remainder of this message has not been transferred.
The estimated size of this message is 9328 bytes.
Click on the Retrieve From Server icon above and check mail again to get 
the whole thing. (If you're reading this in the preview pane, you'll need 
to open the message to see the icon.)  If the Retrieve From Server icon is 
not showing, then this message is no longer on the server.



--
Submissions:[EMAIL PROTECTED]
Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body
Hopelessly Lost:[EMAIL PROTECTED] - help in body of message
Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
--

RE: [drakelist] Drake Manual source?

[Ron Baker]

All,  just a reminder, my Drake website has all the Drake
manuals on-line and some of them are available in .pdf
format.Also , Jim Cherry's "Drake Virtual Museum"
website has several of the Drake manuals available in .pdf
format.
 
Ron / WB4HFN

  _  

From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Chuck
Grandgent
Sent: Sunday, December 16, 2007 8:10 AM
To: [EMAIL PROTECTED]
Subject: Re: [drakelist] Drake Manual source?


Looks like BAMA is dropping the DJVU in favor of .PDF.

   Chuck, K1OM


On Dec 15, 2007 11:22 PM, Howard Traxler
<[EMAIL PROTECTED] > wrote:



"Howard Traxler" <[EMAIL PROTECTED]
 > made an utterance to the
drakelist gang

--
Has anyone looked at
http://bama.sbc.edu/ 
?  I downloaded a few from there.  They are image files with
a djvu
extention.  It seems to be nonstandard but there is a
program for displaying
the files.  One can also print from this program--which I
have done.  dONE 
IT so that I could scan and ocr them to grab the text out of
them.  Have not
yet evaluated any of the final ocr results.

73, WA9RYF


- Original Message -
From: < [EMAIL PROTECTED]  >
To: <[EMAIL PROTECTED]>

Sent: Saturday, December 15, 2007 5:42 PM
Subject: [drakelist] Drake Manual source? 



: It has been a while since I had to purchase BA manuals.
Since originals
are
: extremely rare I would be looking for high quality
reproductions (R-4B,
: T-4XB,MN-2000). I have found several GOOGLing but
difficult to assess the 
quality,
: particularly the photographs and schematics. I am hoping
the LIST could
make
: some recommendations.
:
: Thank you
:
: Alan KB7MBI
:
:
:
: **See AOL's top rated
recipes 

:
(http://food.aol.com/top-rated-recipes?NCID=aoltop000300
0004)
:



 


No virus found in this incoming message.
Checked by AVG Free Edition.
Version: 7.5.503 / Virus Database: 269.17.2/1185 - Release
Date: 12/15/2007
12:00 PM




--
Submissions:[EMAIL PROTECTED]
Unsubscribe:  
[EMAIL PROTECTED] - unsubscribe drakelist in body
Hopelessly Lost:[EMAIL PROTECTED] - help in body of
message
Zerobeat Web Page:   www.zerobeat.net
  - sponsored by www.tlchost.net

--

Re: [drakelist] Drake Manual source?

[Chuck Grandgent]

Looks like BAMA is dropping the DJVU in favor of .PDF.

   Chuck, K1OM

On Dec 15, 2007 11:22 PM, Howard Traxler <[EMAIL PROTECTED]> wrote:

>
> "Howard Traxler" <[EMAIL PROTECTED]> made an utterance to the
> drakelist gang
> --
> Has anyone looked at
> http://bama.sbc.edu/
> ?  I downloaded a few from there.  They are image files with a djvu
> extention.  It seems to be nonstandard but there is a program for
> displaying
> the files.  One can also print from this program--which I have done.  dONE
> IT so that I could scan and ocr them to grab the text out of them.  Have
> not
> yet evaluated any of the final ocr results.
>
> 73, WA9RYF
>
> - Original Message -
> From: <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Saturday, December 15, 2007 5:42 PM
> Subject: [drakelist] Drake Manual source?
>
>
> : It has been a while since I had to purchase BA manuals. Since originals
> are
> : extremely rare I would be looking for high quality reproductions (R-4B,
> : T-4XB,MN-2000). I have found several GOOGLing but difficult to assess
> the
> quality,
> : particularly the photographs and schematics. I am hoping the LIST could
> make
> : some recommendations.
> :
> : Thank you
> :
> : Alan KB7MBI
> :
> :
> :
> : **See AOL's top rated recipes
> : (http://food.aol.com/top-rated-recipes?NCID=aoltop000304)
> :
>
>
>
> 
>
>
> No virus found in this incoming message.
> Checked by AVG Free Edition.
> Version: 7.5.503 / Virus Database: 269.17.2/1185 - Release Date:
> 12/15/2007
> 12:00 PM
>
>
> --
> Submissions:[EMAIL PROTECTED]
> Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body
> Hopelessly Lost:[EMAIL PROTECTED] - help in body of message
> Zerobeat Web Page:  www.zerobeat.net - sponsored by www.tlchost.net
> --
>

[drakelist] Drake Radios Keep You Warm

[Ron Baker]

All, in case anyone is interested, its snowing in New
England. I already have two feet of snow on the ground and
the in-coming Nor'easter storm is dropping about 12" of snow
per hour, the current temperature is 6 degrees with a 30 MPH
wind. 

WISH YOU WERE HERE

Stop by, I have plenty of shovels.

Don't forget the Drake Technical net today at 3PM.

By then I should be up to my eyeballs in snow. ;o)

73, Ron / WB4HFN

Re: [drakelist] ac4 write up

[Boyd Van Horn]

How about running the bias through the coil of an in line small relay. It is 
held in any time the negative voltage is present. The present final cathode to 
ground circuit would be run through the normally closed relay points. Loss of 
any bias current and the relay cuts off the finals. Boyd W0BUW

Bill Horne <[EMAIL PROTECTED]> wrote:  
Bill Horne made an utterance to the drakelist gang
--
Mike,

I understand, and perhaps "Crowbar" is the wrong term: there's certainly 
enough technical expertise on the list to suggest a viable circuit.

Here's my idea: if bias drop below 50% of normal, then we could trigger 
an SCR to short the AC source and blow the fuse.

73, Bill W1AC


Mike Bryce wrote:
>
> Mike Bryce 
made an utterance to the drakelist gang
> --
> Gosh..
>
> I thought about that, but here's no way to crowbar the bias circuit.
>
> in the old supplies, the damage is caused by a "lack" of bias. So, if 
> there is a failure of the bias supply, i.e. it quits, how can you fix 
> that?
>
> the only way I could come up with would have been a system that 
> deprives the transformer of it's primary voltage, shutting down the 
> supply. It would have to default in the off position too, as you would 
> not want the supply to cycle on, find the missing bias, then shut 
> down, the power up, find the missing bias supply, shut down and on and 
> on.
>
>
> mike
>
> Mike, WB8VGE
> SunLight Energy Systems
> The Heathkit Shop
> http://www.theheathkitshop.com/
> J e e p
> o|||o
> Note: No trees were killed in the sending of this message, but a large 
> number of electrons were terribly inconvenienced
>
>
> On Dec 15, 2007, at 5:28 PM, Bill Horne wrote:
>
>
> Bill Horne made an utterance to the drakelist 
> gang
> --
> Is there a provision in the kit for a crowbar circuit to safeguard the 
> rig if the bias (or other) supply fails?
>
> Bill, W1AC
>
>
>
> --
> Submissions: [EMAIL PROTECTED]
> Unsubscribe: [EMAIL PROTECTED] - unsubscribe drakelist in 
> body
> Hopelessly Lost: [EMAIL PROTECTED] - help in body of message
> Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net
> --
>


-- 
Lookng back through time you know its clear that i've been blind
I've been a fool
To open up my heart to all that jealousy that bitterness that ridicule

David Gray


--
Submissions: [EMAIL PROTECTED]
Unsubscribe: [EMAIL PROTECTED] - unsubscribe drakelist in body
Hopelessly Lost: [EMAIL PROTECTED] - help in body of message
Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net
--