[Drakelist] My Drake/Sherwood R-4C Rules my shack!

2011-02-05 Thread Don Jones
Like some of you here, I have been working very hard to get into the log of
the DX-pedition to the South Orkney Islands. My favorite band/mode has
always been 40M CW. Last night I finally got my contact with them.
Considering I am only running 600W to a 20M double zepp from W. WA it has
been a bit of a chore.
My fully loaded Sherwood R-4C smoked my Ten Tec OMNI 6+ (which has a full
load to TT filters and the INRAD CW roofing filter mod) last night. On the
Drake VP8ORK was only a 529 using GUF 600Hz roofing filter and the DRAKE OEM
250Hz cw filter with no ringing filters or white noise. One the OMNI VI+
VP8ORK was only 229 due to the receiver white noise and the howling DSP
noise. It is absolutely amazing to hear the difference of the two receivers.
I do prefer the digital control that the 6 offers, but if you can't hear
'em you ain't going to work 'em. A trip down to Fry's electronics for a 4PDT
12V relay, a 3 pos double pole rotary wafer switch, a bud box and 6 RCA jack
and 3 1/8 headphone jacks is on the agenda next so I have TR switching for
the R-4C, then it is good to go for the TJ8 DX-pedition coming up next.
God I Love that Sherwood R-4C.
Don Jones KO7i
Arlington, WA 


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[Drakelist] Drake items FS

2011-02-05 Thread Ken Simpson, W8EK


Drake items for sale:

Drake TV-3300-LP Low Pass TVI Filter
This modern low pass filter has been optimized to have
more attenuation in the 40 MHz region, where many TVs have
their IF. It is good for 1000 Watts average according to
the manual, and has over 80 db attenuation at 41 MHz.
SO-239 connectors on each end. This one looks great.
With paper work for $30.

Case for Drake TR-33 C
This is the black case that fits the Drake TR-33 C, and has
cutouts in the back for antenna, power, etc. It includes
the shoulder strap, and is in good shape. $12

Case for Drake TR-22
As above, but for the TR-22. No shoulder strap. $10

3 pin mic plug for TR-22
This is the small 3 pin mic plug that fits the Drake TR-22
mic jack. It is much smaller than most of the mic connectors.
This one has been used, but should still be usable some more. $10


Dual Meter SWR Bridges:

Both of these feature two separate meters -- one for reading
forward power and another for reading SWR. This permits one
to easily monitor both the power going out, and the SWR on
the antenna. They were made in Japan, and labeled with various
names, including Swan, Siltronix, and Quement. Both have SO-239
connectors on each end, and work fine.

Both will work on HF, and VHF, covering 3 to 150 MHz, so are
ideal for the new rigs that include 6 and 2 meters.

Quement SWB-2
This meter works fine and looks great.
With paper work for $40.

Siltronix SWR-2
This meter functions fine, but the meter lens of the meter that
reads SWR has a crack on the very right edge of it. It is on
the edge, and not in the part where one actually reads the
meter. It is strictly cosmetic. $25


SWR Bridge / Field Strength Meter:

Royce 2-100 Single Meter SWR Bridge / Field Strength Meter

With SO-239 connectors, it covers from 3 to 150 MHz,
covering HF, 6 meters, and 2 meters, so is ideal for the new
rigs with 6 meters and 2 meters in them.

This one works fine, and looks extremely nice. I do not see
any scratches on it, but it does have a previous owners name
on it. In its original box with original instructions. $32


Prices do not include shipping from Florida.

Thanks.

73,

Ken, W8EK

Ken Simpson
E-mail to w...@flham.net or w...@arrl.net
Voice Phone  (352) 732-8400









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Re: [Drakelist] My Drake/Sherwood R-4C Rules my shack! (Don Jones)

2011-02-05 Thread Jim Bo
IMHO, the only thing that is better than 
what Don describes is
the R-4C as he describes BUT...use a 
Timewave 599ZX
with a pair of noise canceling earphones 
(the Bose are expensive, but

quite comfortable).
The Timewave has a superior audio amp 
and I set up the filter as a
bandpass with the low end at ~300 Hz and 
the high end at 1,500 Hz.
This helps with the low end rumble and 
the high end atmosphere noise
and makes the radio even more enjoyable. 
I rarely use the other features
of the DSP filter, but on occasion, the 
Random function does help.  Only
on few occasions do I use the CW 
function of the DSP.  It does help also,
but for the most part, the R-4C audio 
into the DSP filter is clean.  I have
recently aligned my R-4C and used the 
headphone jack with out the
Timewave and again realized what a huge 
difference it makes.  The DSP filter is
not low cost, but I got it 10 years ago 
and it is still a viable solution.  I am 
sure
that there are lower cost filters out 
there, but can not attest to the audio 
amps on
them.  One of the cost drivers of the 
599ZX is the ability to go to 5 kHz
as the upper cut off frequency.  This 
compares to others that have a cut off 
at
3 kHz or so.  For amateur radio, the 3 
kHz is fine, but I also use the 599ZX 
with

my Drake R-8B for BCBDX and Beacons.

Jim
WA9ZBV
Orange, CA






--

Message: 5
Date: Sat, 5 Feb 2011 08:51:43 -0800
From: Don Jones k...@comcast.net
To: drakelist@zerobeat.net
Subject: [Drakelist] My Drake/Sherwood 
R-4C Rules my shack!
Message-ID: 
000c01cbc554$f890e040$e9b2a0c0$@net
Content-Type: text/plain; 
charset=us-ascii


Like some of you here, I have been 
working very hard to get into the log 
of
the DX-pedition to the South Orkney 
Islands. My favorite band/mode has
always been 40M CW. Last night I 
finally got my contact with them.
Considering I am only running 600W to 
a 20M double zepp from W. WA it has

been a bit of a chore.
My fully loaded Sherwood R-4C smoked 
my Ten Tec OMNI 6+ (which has a full
load to TT filters and the INRAD CW 
roofing filter mod) last night. On the
Drake VP8ORK was only a 529 using GUF 
600Hz roofing filter and the DRAKE OEM
250Hz cw filter with no ringing 
filters or white noise. One the OMNI 
VI+
VP8ORK was only 229 due to the 
receiver white noise and the howling 
DSP
noise. It is absolutely amazing to 
hear the difference of the two 
receivers.
I do prefer the digital control that 
the 6 offers, but if you can't hear
'em you ain't going to work 'em. A 
trip down to Fry's electronics for a 
4PDT
12V relay, a 3 pos double pole rotary 
wafer switch, a bud box and 6 RCA jack
and 3 1/8 headphone jacks is on the 
agenda next so I have TR switching for
the R-4C, then it is good to go for 
the TJ8 DX-pedition coming up next.

God I Love that Sherwood R-4C.
Don Jones KO7i
Arlington, WA



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[Drakelist] No T4XC output

2011-02-05 Thread K4GM- George
I  turned on my trusty T-4XC a little while ago and it failed me!  I 
will try to swap out a tube or two but here are my observations in case 
anyone might be able to point me to the fix.
1.The PTO appears to work fine because I can use it to operate the 
R-4C in transceive mode using the xmtr PTO.  There is no transmit power

2.The sidetone works well and the radio keys.
3.The RF Tune will peak as it should.
4.There is no dip when tuning the plate. In fact there is a peak 
oddly enough.
5.Adjusting the Load control has no effect on plate current.  
Relative output is unchanged when adjusting the plate control.

6.These measurements were made loaded into a 50 ohm dummy load.

Hope I am lucky and it is only a tube.  However I am seldom lucky; thus, 
I sent this email.  Thanks to all who respond.

George K4GM


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Re: [Drakelist] My Drake/Sherwood R-4C Rules my shack! (Don Jones)

2011-02-05 Thread Jim Shorney
On Sat, 05 Feb 2011 10:20:27 -0800, Jim Bo wrote:

use a 
Timewave 599ZX
with a pair of noise canceling earphones 
(the Bose are expensive, but
quite comfortable).

I found a ClearSpeeck Base a couple of years ago at a hamfest for the insanely
low price of 10 bucks. While I am not a big fan of DSP as the magic box that
cures all ills, I figured that I couldn't go wrong at that price. While I
haven't tried it out on the R-4C yet, I have used it extensively with my TR-7.
For a no-adjustments black box, I was suprised, if not astonished, at how good
it really was. I have literally been on 75 phone with it and been totally
unaware of static crashes from approaching thunderstorms that were making copy
very difficlut for others. Paired it with an Autek QF-1A, which provides some
interesting combinations for noise filtering. It blows away my previous
experiences with the RadShack DSP-40, which acutally does a fair job for what
it is (i.e., it works like a $70 DSP should be expected to). The Timewave
offerings have intruiged me, and I'll probably end up with one at some point if
I can find a good deal.

73

-Jim


--
Ham Radio NU0C
Lincoln, Nebraska, U.S.S.A.
TR7/RV7/R7A/L7, TR6/RV6, T4XC/R4C/L4B, NCL2000, SB104A, R390A, GT550A/RV550A, 
HyGain 3750, IBM PS/2 - all vintage, all the time!

Give a man a URL, and he will learn for an hour; teach him to Google, and he 
will learn for a lifetime.

HyGain 3750 User's Group - http://groups.yahoo.com/group/HyGain_3750/
http://incolor.inetnebr.com/jshorney
http://www.nebraskaghosts.org



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Re: [Drakelist] No T4XC output

2011-02-05 Thread kb8bku
George,

Do you still see the normal idle plate current (bias) of about 70mA when you 
key the transmitter with the GAIN all the way down?

KB8BKU, Darryl in Dayton

On Feb 5, 2011, at 1:44 PM, K4GM- George wrote:

 I  turned on my trusty T-4XC a little while ago and it failed me!  I will try 
 to swap out a tube or two but here are my observations in case anyone might 
 be able to point me to the fix.
 1.The PTO appears to work fine because I can use it to operate the R-4C 
 in transceive mode using the xmtr PTO.  There is no transmit power
 2.The sidetone works well and the radio keys.
 3.The RF Tune will peak as it should.
 4.There is no dip when tuning the plate. In fact there is a peak oddly 
 enough.
 5.Adjusting the Load control has no effect on plate current.  Relative 
 output is unchanged when adjusting the plate control.
 6.These measurements were made loaded into a 50 ohm dummy load.
 
 Hope I am lucky and it is only a tube.  However I am seldom lucky; thus, I 
 sent this email.  Thanks to all who respond.
 George K4GM
 
 
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[Drakelist] r4b transformer

2011-02-05 Thread yash

 Got the r4B finished today, set the bias and s meter  and added a coup la of 
crystals, 17 and 12 meters. Anyway , after the receiver ran for 1/2 a hour, I 
noticed the power transformer seemed very warm.not enough to make you take your 
hand away,,but warm. Sound normal?
Also I want to send the the twins out for service to somewhere, Can any 
body suggest someone for service that somewhere in the southeast,Iam in sw 
Florida. Figure the closer they are the less travel and = less damage.
thanks
dale wt4t

 


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Re: [Drakelist] r4b transformer

2011-02-05 Thread Phbjr
Dale,
 
Warm should be fine.  I assume that the R-4B  has been re-capped, so 
there should be no leaky cap issues in the power  supply.
 
FYI, the R-4A early (13-tube) version  power transformer runs *VERY* 
warm, which is normal, but is also why I use  a top-mounted fan on the case 
directly above the transformer to draw air out of  the radio.  There should be 
no need of that with the R-4B but it is an  option if the warm 
transformer concerns you.
 
73/Paul, K4MSG 
 
 
 
 
In a message dated 2/5/2011 4:28:02 P.M. Eastern Standard Time,  
y...@aol.com writes:

Got the r4B finished today, set  the bias and s meter  and added a coup la 
of crystals, 17 and 12 meters.  Anyway , after the receiver ran for 1/2 a 
hour, I noticed the power  transformer seemed very warm.not enough to make you 
take your hand away,,but  warm. Sound normal?
Also I want to send the the twins  out for service to somewhere, Can any 
body suggest someone for service that  somewhere in the southeast,Iam in sw 
Florida. Figure the closer they are the  less travel and = less damage.
thanks
dale wt4t






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Re: [Drakelist] r4b transformer

2011-02-05 Thread kb8bku
Mine runs very warm as well on my R4-A.

KB8BKU,  Darryl in Dayton

On Feb 5, 2011, at 4:26 PM, y...@aol.com wrote:

 Got the r4B finished today, set the bias and s meter  and added a coup la of 
 crystals, 17 and 12 meters. Anyway , after the receiver ran for 1/2 a hour, I 
 noticed the power transformer seemed very warm.not enough to make you take 
 your hand away,,but warm. Sound normal?
 Also I want to send the the twins out for service to somewhere, Can any 
 body suggest someone for service that somewhere in the southeast,Iam in sw 
 Florida. Figure the closer they are the less travel and = less damage.
 thanks
 dale wt4t
 
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Re: [Drakelist] r4b transformer

2011-02-05 Thread Garey Barrell

Dale -

Yes, the transformers all run 'warm'.  Leaky electrolytics can make them run 'warmer', as can 
today's slightly higher line voltages.  Some put fans on them, but I've run them 24/7 for years 
without fans and even under shelves with a couple inches clearance above (open back) and have yet to 
see a bad transformer that wasn't destroyed by some clown putting a piece of wire in the fuseholder. 
 A shorted or even very leaky electrolytic can take one out under those circumstances.


73, Garey - K4OAH
Glen Allen, VA

Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line
and TR-4/C Service Supplement CDs
www.k4oah.com


y...@aol.com wrote:

Got the r4B finished today, set the bias and s meter  and added a coup
la of crystals, 17 and 12 meters. Anyway , after the receiver ran for
1/2 a hour, I noticed the power transformer seemed very warm.not
enough to make you take your hand away,,but warm. Sound normal?
Also I want to send the the twins out for service to somewhere,
Can any body suggest someone for service that somewhere in the
southeast,Iam in sw Florida. Figure the closer they are the less
travel and = less damage.
thanks
dale wt4t




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Re: [Drakelist] DSP filters with Drakes

2011-02-05 Thread Jim Shorney
On Sat, 5 Feb 2011 12:57:16 -0800 (PST), Ron wrote:

I also use Philips collapsible headphone when I use cans.


Forgot to mention it, but I have a set of stereo NC headphones that I rarely
use because they are ultra-cheapo made in China plastic, $20 on closeout at a
Menard's of all places. What I do use when I need it is a Telex Airman NC
avionics headset. It's always a big hit at field day, it reduces the low
frequency noise from the generator to almost nothing. It's amazing what it will
do in a supposedly quiet house.

73

-Jim


--
Ham Radio NU0C
Lincoln, Nebraska, U.S.S.A.
TR7/RV7/R7A/L7, TR6/RV6, T4XC/R4C/L4B, NCL2000, SB104A, R390A, GT550A/RV550A, 
HyGain 3750, IBM PS/2 - all vintage, all the time!

Give a man a URL, and he will learn for an hour; teach him to Google, and he 
will learn for a lifetime.

HyGain 3750 User's Group - http://groups.yahoo.com/group/HyGain_3750/
http://incolor.inetnebr.com/jshorney
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Re: [Drakelist] r4b transformer

2011-02-05 Thread Jim Shorney
On Sat, 5 Feb 2011 16:32:25 EST, ph...@aol.com wrote:

FYI, the R-4A early (13-tube) version power transformer runs *VERY* warm, 
 which is normal, but is also why I use a top-mounted fan on the case directly 
 above the transformer to draw air out of the radio.  There should be no need 
 of that with the R-4B but it is an option if the warm transformer concerns 
 you.

Whether there's a need to or not, it's always a good idea to reduce the
temperature to prolong component life.

73

-Jim


--
Ham Radio NU0C
Lincoln, Nebraska, U.S.S.A.
TR7/RV7/R7A/L7, TR6/RV6, T4XC/R4C/L4B, NCL2000, SB104A, R390A, GT550A/RV550A, 
HyGain 3750, IBM PS/2 - all vintage, all the time!

Give a man a URL, and he will learn for an hour; teach him to Google, and he 
will learn for a lifetime.

HyGain 3750 User's Group - http://groups.yahoo.com/group/HyGain_3750/
http://incolor.inetnebr.com/jshorney
http://www.nebraskaghosts.org



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Re: [Drakelist] r4b transformer

2011-02-05 Thread Garey Barrell



Jim Shorney wrote:

On Sat, 5 Feb 2011 16:32:25 EST, ph...@aol.com wrote:

   

FYI, the R-4A early (13-tube) version power transformer runs *VERY* warm, which is 
normal, but is also why I use a top-mounted fan on the case directly above the 
transformer to draw air out of the radio.  There should be no need of that with the R-4B 
but it is an option if the warm transformer concerns you.
 

Whether there's a need to or not, it's always a good idea to reduce the
temperature to prolong component life.

73

-Jim

   

Agreed, added cooling NEVER hurts.

73, Garey - K4OAH
Glen Allen, VA

Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line
and TR-4/C Service Supplement CDs
www.k4oah.com


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[Drakelist] DSP Filters

2011-02-05 Thread Hunter Ellington
My experience is just the opposite.  I use a Timewave S9+ with both my R7 and 
R4C.  The Time waves work splendidly with my Drakes, and reduce noise to the 
point that these old receivers compare favorably with the modern rice boxes..

 K0GFY  R. Hunter Ellington
303-454-0543/720-560-8139
P.O. Box 44
Larkspur, CO 80118

Sent From My iphone.



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Re: [Drakelist] DSP Filters

2011-02-05 Thread Don Cunningham
Hunter,
When you say that, is your usage mostly CW/Digital or SSB??  I am just curious, 
as most of the time I hear this, they really mean on CW.  If that's not the 
case, I'm interested in trying that as I LOVE the mellow sound of my R4(X)'s 
but they sometimes need just a little more help, if you know what I mean.
Tks,
Don, WB5HAK___
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Re: [Drakelist] DSP Filters

2011-02-05 Thread James
I agree. The Timewave s 9 works great with my R4C. You really need to read the 
manual, and practice and re-read the manual again. LOL. 
Sent via BlackBerry from T-Mobile

-Original Message-
From: Hunter Ellington wb9...@yahoo.com
Sender: drakelist-bounces@zerobeat.netDate: Sat, 5 Feb 2011 15:28:39 
To: drakelist@zerobeat.net
Subject: [Drakelist] DSP Filters

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Re: [Drakelist] DSP Filters

2011-02-05 Thread Robert Ladden
I agree. I use a s9+ with my R-4C and TR-3, for CW, SSB, and RTTY. It is quite 
helpful.
73,Bob WW3QB

--- On Sat, 2/5/11, Hunter Ellington wb9...@yahoo.com wrote:

From: Hunter Ellington wb9...@yahoo.com
Subject: [Drakelist] DSP Filters
To: drakelist@zerobeat.net
Date: Saturday, February 5, 2011, 6:28 PM

My experience is just the opposite.  I use a Timewave S9+ with both my R7 and 
R4C.  The Time waves work splendidly with my Drakes, and reduce noise to the 
point that these old receivers compare favorably with the modern rice boxes..
 K0GFY  R. Hunter Ellington
303-454-0543/720-560-8139
P.O. Box 44
Larkspur, CO 80118
Sent From My iphone.










  
-Inline Attachment Follows-

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Re: [Drakelist] Adding DSP to a R-4C

2011-02-05 Thread Don Jones
Thanks guys for the suggestions, duly noted ham fest season is just around
the corner. 
My receiver does have the Sherwood audio amp mode in it and it is really
surprising how clean the audio is. 
To be honest I might try the Timewave on my OMNI 6.

Don Jones KO7i
Arlington, WA 

Date: Sat, 05 Feb 2011 10:20:27 -0800
From: Jim Bo jbol...@verizon.net
To: drakelist@zerobeat.net
Subject: Re: My Drake/Sherwood R-4C Rules my shack! (Don Jones)

IMHO, the only thing that is better than what Don describes is the R-4C as
he describes BUT...use a Timewave 599ZX with a pair of noise canceling
earphones (the Bose are expensive, but quite comfortable). The Timewave has
a superior audio amp and I set up the filter as a bandpass with the low end
at ~300 Hz and the high end at 1,500 Hz. This helps with the low end
rumble and the high end atmosphere noise and makes the radio even more
enjoyable. I rarely use the other features of the DSP filter, but on
occasion, the Random function does help.  Only on few occasions do I use
the CW function of the DSP.  It does help also, but for the most part, the
R-4C audio into the DSP filter is clean.  I have recently aligned my R-4C
and used the headphone jack with out the Timewave and again realized what a
huge difference it makes.  The DSP filter is not low cost, but I got it 10
years ago and it is still a viable solution.  I am sure that there are lower
cost filters out there, but can not attest to the audio amps on them.  One
of the cost drivers of the 599ZX is the ability to go to 5 kHz as the upper
cut off frequency.  This compares to others that have a cut off at 3 kHz or
so.  For amateur radio, the 3 kHz is fine, but I also use the 599ZX with my
Drake R-8B for BCBDX and Beacons.

Jim
WA9ZBV
Orange, CA


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Re: [Drakelist] DSP Filters

2011-02-05 Thread David
The add on DSP units are audio DSP filters and they can be very effective.
The OMNI VI+ has a very effective one.  They can be used with or without the
roofing filter in the first IF.  As there are various needs for cw and for
SSB, the roofing filter will also change.  So, for ssb, a 3KC filter would
be good, the 600 cycle or lower for cw would be applicable.  
All the roofing filter does is to limit the necessarily wide bandwidth of
the front end from abusing the first IF and later stages.  When this
happens, IMD occurs and other strange generated noises are present that
travel thru the set.  Stopping the mess at the first IF allows the rest of
the radio to perform efficiently and cleanly.  The noise filter on the
audio, only helps when some crud does slip into the roofing filter passband.
 
Sherwood sells a switch kit that varies the AGC and has a concentric switch
that can select one or more of the roofing filters.  You do not have to
elect to have a cw or ssb filter only; with the switch you can have what you
wish, even both.  So, if you want optimal, get the roofing filter for the
mode or modes that you want and if necessary (generally only occasionally)
get the audio DSP.  Note that in most models, the roofing filter can be
switched with an unused lug on the filter switch.  You will need to look/see
if you have this.
 
Good luck.
 
David Assaf, III
W5XU
 
From: drakelist-boun...@zerobeat.net [mailto:drakelist-boun...@zerobeat.net]
On Behalf Of Hunter Ellington
Sent: Saturday, February 05, 2011 5:29 PM
To: drakelist@zerobeat.net
Subject: [Drakelist] DSP Filters
 
My experience is just the opposite.  I use a Timewave S9+ with both my R7
and R4C.  The Time waves work splendidly with my Drakes, and reduce noise to
the point that these old receivers compare favorably with the modern rice
boxes..
 
K0GFY  R. Hunter Ellington
303-454-0543/720-560-8139
P.O. Box 44
Larkspur, CO 80118

Sent From My iphone.
 
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Re: [Drakelist] DSP filters with Drakes

2011-02-05 Thread Jim Shorney
On Sat, 5 Feb 2011 16:43:39 -0800 (PST), Ron wrote:

My Philips are actually more folding.  They are full over the ear type and 
very comfortable. 

The cheapo Chinese onse are fully folding, but I hate to use them much becuase
they feel like they will break at any moment. Otherwise, they do seem to work
well. I've got two styles of the Airman - interestingly, the older one with the
full over-the-ear muffs is articulated to fold at the ends, but not in the
middle of the headband like the cheapos; the newer style Airman with on-the-ear
muffs does not fold at all. Most people seem to prefer the older one for
comfort, and they do a better job of sealing out external noise without the NC
on. I get good reports on transmit as well.

73

-Jim


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Lincoln, Nebraska, U.S.S.A.
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