Don, Sounds like you have a spywear in your registry.
I'll get with you later on this, off the reflector.
When is a good time to talk on the phone?
John, WA5BXO
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Donald Chester
Sent: Thursday, October 21
to be calibrated. The measure output AC voltage would represent the change
in IP with Ep held constant. Transconductance = (DELTA Eg/DELTA Ip) with Ep
held constant.
Just some extra thoughts.
John, WA5BXO
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf
to the plate. For more on this see
http://www.qsl.net/wa5bxo/asyam/aam3.html .
I'm glad to see questions of this nature.
John, WA5BXO
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
[EMAIL PROTECTED]
Sent: Sunday, October 10, 2004 7:12 AM
To: amradio
) requires the peak voltage to be equal
that of the DC supply so the average audio power required is half the DC
power to the plate. For more on this see
http://www.qsl.net/wa5bxo/asyam/aam3.html .
I'm glad to see questions of this nature.
John, WA5BXO
get the impedance up to where it is a match for the
XFMR/modulator yet still run about the same power.
The turns or voltage ratio would be sqrt of 1.5 = 1.22
Good questions Steve
John
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
[EMAIL PROTECTED
if the tube
is delivering 60 watts of carrier to a load or antenna, while consuming the
100 watts input, then the tube is dissipating 40 watts in heat = 60%
efficiency. Special Class C circuits can reach 90% efficiency.
John, WA5BXO
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL
eventually went to standard Push
Pull.
John, WA5BXO
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Donald Chester
Sent: Sunday, October 03, 2004 12:45 PM
To: amradio@mailman.qth.net
Subject: RE: [AMRadio] Home brew AM Cathode modualtion
The 450th is a big
I found that when I tried to view the .gif that it showed nothing in the
IE browser but when I saved it locally, then it showed OK in my pix
viewing program.
John, WA5BXO
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Geoff/W5OMR
Sent: Sunday, October
tubes, and
there would be no difference than if the modulation transformer were
placed where you commonly see it in the plate circuit of the final.
Good Luck,
John, WA5BXO
up some things that or either not always clear in
other books or not mentioned at all. Hope this helps someone.
73
John, WA5BXO
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Brett gazdzinski
Sent: Wednesday, September 29, 2004 8:15 AM
a Modulation
XFMR to match the output of 811A class B (about 12500 ohms as I remember) to
the 7500 ohm class C final.
John, WA5BXO
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED]
Sent: Tuesday, September 28, 2004 2:50 PM
To: amradio
OPPS I sent this via the wrong EMAIL again. I'm sorry
Here it is via the proper email
**
This is the Official notice for the 2nd annual - WA5BXO BBQ to be held on
Halloween day, Sunday Oct 31, 2004
See The link below
Hi Gary I will be glad to post these pix for you
Email to [EMAIL PROTECTED]
John, WA5BXO
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Gary Blau
Sent: Monday, September 20, 2004 6:07 PM
To: Discussion of AM Radio
Subject: [AMRadio] [FWD]: HEAVY IRON
Here you go Picture of the Collins 21E-1
http://wa5bxo.shacknet.nu/Collins21e-1/
there is
enough gain in the radio or enough output from the microphone, but a High Z
microphone will not work into a low Z input with out buffering amps.
John,
WA5BXO
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Edward B Richards
Sent: Thursday, July 29, 2004 9
I thought Dave had intellect and CLASS, being a Collins Guy, but I was
wrong. .
- Original Message -
From: Mike Wells [EMAIL PROTECTED]
To: Discussion of AM Radio amradio@mailman.qth.net
Sent: Thursday, July 22, 2004 8:50 AM
Subject: RE: [AMRadio] Pix of BPL hardware on utility poles in
What is it and what price?
- Original Message -
From: Brian Carling [EMAIL PROTECTED]
To: Discussion of AM Radio amradio@mailman.qth.net
Sent: Tuesday, July 06, 2004 8:20 AM
Subject: RE: [AMRadio] COMDEL CSP 11
I have a really nice Japanese speech compressor for sale if anyone would
accordingly.
Good Luck
John, WA5BXO
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Edward B Richards
Sent: Wednesday, April 14, 2004 7:03 PM
To: amradio@mailman.qth.net
Subject: [AMRadio] Modulation Question
Hi Guys;
I am new to this list so please
I received two from you Dennis of because you sent to me and the
reflector but I have not received the one that Bacon mentioned or any
before that on this thread. Yet Geoff is receiving all it seems. Maybe
I should change my password on my local email address??
John, WA5BXO
-Original
find no other
mention of the subject below. Is any one else experiencing this?
John, WA5BXO
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of RJ Mattson
Sent: Thursday, April 08, 2004 12:11 AM
To: AM Radio
Subject: [AMRadio] Plate modulating a 807
Sorry
from acting like a spark coil.
Good luck to you on your experiments. And keep doing them, that's where
everybody learns, especial when you share the experience.
73, John, WA5BXO
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL
from acting like a spark coil.
Good luck to you on your experiments. And keep doing them, that's where
everybody learns, especial when you share the experience.
73, John, WA5BXO
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL
response in the lows then your audio will
probably be lopsided anyway, especially if you talk close to the mic.
SEE - http://www.qsl.net/wa5bxo/asyam/aam3.html
Good luck,
John, WA5BXO
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Brett Gazdzinski
should
open up or become disconnected the power supply is still working and the
bleeders still work.
Hope this is of some help.
John, WA5BXO
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of patrick jankowiak
Sent: Sunday, March 28, 2004 12:08 AM
load this friday, in Roswell from KBIM 910. It needs
work (few burnt connections) so I think I can fix it and put it to
good use as a shack heater. My two parallel globars didn't hold up
over with 500 Watts.
73
John
K5PRO
Santa Fe County, NM
of a thumbnail
thing, I can do that for you later but I'm a little busy here lately. Maybe
in a week or so I could get to it. Smaller pictures would of course load
faster and this is important for those with dialup service.
I enjoyed looking at the equipment, you do nice work.
John,
WA5BXO
-Original
Ok Bret your pictures or at
http://wa5bxo.shacknet.nu/N2DTS/
CUL, 73
John, WA5BXO
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of Brett Gazdzinski
Sent: Friday, January 23, 2004 9:54 AM
To: amradio@mailman.qth.net
Subject: [AMRadio] Pictures of homebrew
Hi Bret:
I would be very happy to post the pictures on my server just email
me direct with them to
mailto:[EMAIL PROTECTED]
If you have any trouble let me know.
John
WA5BXO
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of Brett Gazdzinski
Sent
of its own. Simplicity trade off for plate
efficiency. As to which ay is best for you depends, on what's
available, your space, and what you want to learn.
Good Luck,
John
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Paul Sokoloff
Sent: Friday
Luck,
John
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Paul Sokoloff
Sent: Friday, December 19, 2003 9:30 PM
To: amradio@mailman.qth.net
Subject: Re: [AMRadio] Looking for Linear Amp
Hello again,
I had no idea I was going to stir up
I don't know Geoff, I think the real, universal, and best part, for a
loss of better words, might be lost the lengthy, but I'm sure exquisite,
explanation.
Tony has my vote as the best in this category.
BXO
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On
That's what them thare harmonics of a nasty three KW 11iineeearr linear
will do to ya.
John,
WA5BXO
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of patrick jankowiak
Sent: Monday, December 15, 2003 8:38 PM
To: amradio@mailman.qth.net
Subject: [AMRadio
the holidays with the YL .
Happy Holidays and may your finals glow orange.
73
John
K5PRO
Jim Sez:
Todd:
Yours is the second transmitter to make that pass. John K5PRO came up to
Casper last year to pick up a Continental 1KW from Los Alamos, NM and went
back that way to avoid some traffic. He pulled
the
grid current on the 250ths correct. I will have to in corporate some
feed back circuit for to regulate that in the future.
John, WA5BXO
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Brett Gazdzinski
Sent: Thursday, December 11, 2003 7:37 AM
in a
dummy load paralleled and another 20 in drive (a total of about 40 watts)
and had very tight coupling to the grid then the neutralization of the 833A
would be very easy even with the single tube.
John,
WA5BXO
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED
or with a sine wave modulating
it at 1200 watts PEP.
Sorry fingers!
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of John Coleman
Sent: Thursday, December 11, 2003 4:33 PM
To: amradio@mailman.qth.net
Subject: RE: [AMRadio] AM from what I have in the junk box
.
John,
WA5BXO
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Donald Chester
Sent: Wednesday, December 10, 2003 12:52 AM
To: amradio@mailman.qth.net
Subject: RE: [AMRadio] Power Supply Question
BTW, I'm considering modifying the Gates BC transmitter
that
like to use very large capacitors in big rigs will have stepping startup
circuits so that the capacitors charge up slower limiting the initial surge.
If you're not having any trouble with blowing fuses of rectifiers you're
probably OK with the large capacitor.
John,
WA5BXO
-Original
most all class
B and AB2 circuits. We have enough trouble keeping the signal voltage
up on the control grids with out placing resistor there.
There I go again with another long lengthy gol-darn explanation.
Sorry bout that.
John,
WA5BXO
-Original Message-
From: [EMAIL PROTECTED]
[mailto
the same with some
control and let the regulator tube take the blunt of the dissipation.
What do you guys think and does anybody want to play with it.
I'm thinking some thing like a 4-65 for the tube??
John
Coleman
for construction mechanics, plus it has to be tuned
every time you change frequency.)
73,
John, WA5BXO
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Brett Gazdzinski
Sent: Sunday, November 30, 2003 9:41 PM
To: amradio@mailman.qth.net
Subject: RE: [AMRadio
I have been on vacation to visit the grandkids in Arkansas. Sorry about
the late reply.
I agree on the blatant abuse VS occasional over the limit. I
feel that the main thing is to keep the signal as clean as possible on
bandwidth due to distortion and phasing products and just be a
of audio the two
piece network was place from screen to ground which reduced the audio on
the screens to about 40 percent when the plate was at 100 percent.
John
WA5BXO
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Donald Chester
Sent: Sunday, November 30
Hi Patrick
It looks as though you have made all the right calculations.
But keep in mind that the purpose of the screen modulation transformer
is to lower the audio voltage going to the modulator and its design
impedance is of little importance. Its turn ratio is of most concern.
And if I
to see a different load Z
depending on modulating frequencies. In turn there would be intermodulation
distortion. And a shift in phase relationships of frequencies that make a
certain wave shape.
Interesting subject!
John, WA5BXO
-Original Message-
From: [EMAIL PROTECTED] [mailto
on the
plates.
John,
WA5BXO
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Brett Gazdzinski
Sent: Tuesday, November 25, 2003 2:33 PM
To: amradio@mailman.qth.net
Subject: RE: [AMRadio] Re: Modulation transformer ID and repair
Well, the 813 rig seems
Don's circuit didn't come out to good here so I redrew it and it can be
viewed at this link
http://wa5bxo.shacknet.nu\HAMPICTURES\mod-reactor-circuit.gif
I pretty sure this is what you had in mind Don
John
WA5BXO
Hey Jeff, why don't you build a linear grounded grid out of a pair or
all three 450s?
1. You would have the plate dissipation capability.
2. No high level modulator required.
3. Pi Net output.
4. No need to neutralize on the lower frequency HF bands.
5. Same filament source required as with
if it is a purely linear leakage function at lower voltages? How about
power factor do you check for internal series losses?
John
WA5BXO
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of Jim candela
Sent: Thursday, November 20, 2003 6:40 AM
To: amradio@mailman.qth.net
and plastic or paper insulator sheets and rolling them up on a
stick, taping it up, crimping some wires to the foils or screwing them down
to standoffs.
Lets hear it folks, tell the truth.
John,
WA5BXO
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED
Hi Eddy
I've been reading all about the receiver. If you write up what
you want to say about the whole thing I will post it all with the
pictures on my website with a full folder dedicated to the project.
John, WA5BXO
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL
I have acquired a Mixer/EQ. Teac/Tascam Model 5A. Would anyone have
manuals or any info on this mixer?
John, WA5BXO
. Covers
have been professionally repaint by a friend at auto shop and look good.
Comes with Astatic hand mic and the all important manual with schematic
$135.00 plus shipping or pick up in central Florida
thanks john KI4NR
Thanks Jim
Here is a very interesting article but I didn't write it. I aint that
smart. But I think I can understand some of it. I think it may be worth
printing and putting in a binder.
http://www.john-a-harper.com/tubes201/#Physical%20Construction
John, WA5BXO
to a sensitive AC voltmeter (scope) and measure the AC current
produced as a change in Eg AC. A 100 ma change would be represented as
0.1VPTP on the scope. You would need a very large capacitor to Filter the
source with.
73
John, WA5BXO
-Original Message-
From: [EMAIL PROTECTED
circuit for Gm. It might even show distortion
factors if the scope was to be connected vertical to input and
horizontal to output.
http://wa5bxo.shacknet.nu/HAMPICTURES/transconductance_check.gif
What do you think?
John, WA5BXO
it too.
Please RSVP so the wife knows how much tator salad to make.
Old Fashion Ham Radio Fest
Bring or tell others hams and would be hams and XYLs to come as well -
Just RSVP with a number of guests
73 and hope you can come
John, WA5BXO
Well, 30 DB down from 1500 is 1.5 watts. There is a lot of difference
between 30 and 60 DB. I don't think I remember reading any suggested
skirt step or anything like that. I wonder if these folks have got a
clue?
John, WA5BXO
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL
. The chassis above is where the
866s go, in front of a viewing window with filament XFMRs, chokes, and
oil filled caps behind.
John, WA5BXO
---Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Mike Dorworth K4XM
Sent: Sunday, June 29, 2003 2:34 PM
To: amradio
, 425 mA DC, 210/220/240 VAC
Approx dimensions of last item,95#
$35
Kenyon (mod transformer?), No idea, heavy
9.5 H x 19.5 L x 10.5 W, 168#.
$25
73
John
K5PRO, santa fe county
be available. It is quite a heavy beast
for such a power level.
WE also made Doherty rigs which later were the foundation for
Continental Electronics transmitters I think.
73
John
K5PRO
New Mexico
From: Mark Foltarz [EMAIL PROTECTED]
To: amradio@mailman.qth.net amradio@mailman.qth.net
on
BAKELITE. Then ignore all the jewelry stuff and find the history
stuff.)
Thanks to all, John, WA5BXO
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Monday, May 26, 2003 7:21 AM
To: amradio@mailman.qth.net
Cc: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject: Re
When I ping www.amwindow.org I get 63.251.213.29
If you not sure how to do that, open a command (DOS) window and type
ping www.amwindow.org and see what IP address returns.
What do you get?
John, WA5BXO
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf
thing you do is get updates (they
find have new updates about every 2 or 3 days. Running the program
should be self explanatory. Good Luck
73
John, WA5BXO
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED]
Sent: Monday, April 14, 2003 7
I just glued my ceramic bar, when it broke, with epoxy but it may not
work for all kind of breaks.
John, WA5BXO
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Donald Chester
Sent: Wednesday, March 19, 2003 8:08 PM
To: amradio@mailman.qth.net
Subject: RE
that will cause excessive
band width and if a synchronous detector is used at the receiver it will
detect the products and add them to the standard AM products thereby
generating distortion.
GL, 73, John, WA5BXO
I think most of mine just floated away. They may some day, wash to
shore in Southern California or Florida and become useful there. HIHI
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Donald Chester
Sent: Thursday, February 13, 2003 8:11 PM
To:
will usually be infinite. The
transformers with tar type potting seem to be the worst offenders at
absorbing moisture. I assume this is due to cracking of the tar. John
K9XH
Donald Chester wrote:
Be careful about using a gas-fired oven to dry out the transformers. Water
is a by-product of gas
of 250ths @ 1600 - 2000 volts (depending on the draw
bridge position). I would have never believed it if it weren't my own.
BTW all the other XFMRS on the chassis are still doing there thing.
John, WA5BXO
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL
level
of the E*I is greater for a Square Wave than for a Sine Wave.
I would like to know more about the iron vane movement. Does it
work via induced eddy currents that cause opposing magnetic fields?
John, WA5BXO
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED
it but then you need to
figure in the transformer losses.
John KF2JQ
Sara Wayne Steiner wrote:
Jim ,
I have had this problem one way or another for years ever since I have
started to use the old boat anchors. There are times when my line voltage
is as high as 129 v! This really plays havoc
between
him and the QST/ARRL people. Not to uncommon, I suppose, when knowledge
meets political corruption.
John, WA5BXO
have a heart attack! So we decided that
we might try to remold, recap, or otherwise make a big mess in the
kitchen trying to rebuild this pinch roller. Any body got any ideas as
to where to start and most important is there any liquid rubber or
synthetic that we should look for.
73, John, WA5BXO
something as heavy as a real transmitter
around but who knows about those people.
Interesting Subject!
John, WA5BXO
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Donald Chester
Sent: Saturday, December 07, 2002 2:51 PM
To: amradio@mailman.qth.net
Subject
Good question, I didn't recognize what they were. I was
hoping someone on the list would fill that in !
Anybody know ?
John,
-.. . WAØSTX
- Original Message -
From: Todd Bigelow - PS [EMAIL PROTECTED]
To: amradio@mailman.qth.net
Sent: Friday, December 06, 2002 9:28 AM
Subject: Re
Brett,
I noticed you omitted the 32V1 from your hit parade
of AM rigs. Any reason in particular?
--... ...--
John, WAØSTX
- Original Message -
From: Brett Gazdzinski [EMAIL PROTECTED]
To: amradio@mailman.qth.net
Sent: Monday, November 25, 2002 12:27 PM
Subject: RE: [AMRadio] BW
Hi Donald:
I used to run a pair of 304TLs Push Pull on 75 meters. It was a
real brute of a rig and really had lots of head room for modulation. As
I recall for Class C Plate Modulated you will need about -500 volts of
bias at about 150 ma of grid current (75 ma / tube). I used a
BTW here is a link to a PDF file on the 304TL
http://www.aiko.com/roscoe/304tl.pdf
I'm answering the following not to be correcting you Brian, but
instead to make sure we don't mislead some the new comers that might be
reading the mail. (To coin a phrase that's really true here on email,
HIH)
We must be careful about taking things out of context. Gee, I
hope
annoying.
Interesting discussion don't you think!
Thanks fer the mail Gary!
73, John, WA5BXO
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Gary Schafer
Sent: Wednesday, October 02, 2002 5:39 PM
To: amradio@mailman.qth.net
Subject: Re: [AMRadio] New link
rig and I understand it would
operate on 6 meters, although I never did.
Tnx fer the comments:
John, WA5BXO
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Brian Carling
Sent: Wednesday, October 02, 2002 8:10 PM
To: amradio@mailman.qth.net
Subject: RE
always use open
wire feeds if it is at all possible.
Good luck,
John, WA5BXO
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of George Pritchard
Sent: Monday, September 30, 2002 7:30 AM
To: amradio@mailman.qth.net
Subject: RE: [AMRadio] New link to Info
and encourages experimentation.
John, WA5BXO
Hi all
Have this new old stock hypersil transformer. The specs are 115/230
primary... output 1100v @ 900 mils CCS .it has never been used. Make me
a decent offer. Email for pictures
73 John
[EMAIL PROTECTED]
If they QRM'd those CW stations then they deserved the
citation.
There is no excuse for that behavior.
--... ...--
de WAØSTX
John
- Original Message -
From: Donald Chester [EMAIL PROTECTED]
To: amradio@mailman.qth.net
Sent: Tuesday, September 10, 2002 11:36 PM
Subject: Re: [AMRadio
Hey Bob!
Check out the new links at http://www.qsl.net/wa5bxo , I've got
you're documents on line now.
Don, K4KYV, your on there too. The first link to here what's on
3880.
to let everyone know I was still
listings, and a few hundred miles down the road the conditions would get
better or I would sign out and tell them (in CW) I was going to get a
motel. In those days everyone spoke CW.
73, John, WA5BXO
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL
it should run
about 400watts...Don't think the 811 A would like
it...
Best 73's Bob K1JNN
At 06:59 PM 9/6/02 -0500, John Beasley wrote:
Give my little brother Carl (WBØHTW) a shout. He's done a very nice
job restoring mine. I'll send pictures if you like.
I don't think it has a lot
like I did, buy used gear or get a loan, like I did and make good
marks, get a good education resulting in a good job. Then they can afford
to
relieve their childhood and buy all the used rigs they wanted in their
childhood and restore them like I am doing.
73,
John, W4AWM
HALLICRAFTERS
place So when someone tells me they have two 8877 in their amp, I
just laugh say that it would make a good driver amp !!
John
Nice looking amps ... just bought one for my mobile !!
Thanks john
the ham
rigs were super clean cause no interference, unlike modified CB radios...
73 john
Impedance matching is a topic that many new comers don't have a real
grip on and no wonder. There are so many strange applications and
problems. So I will take this opportunity to tell what I have learned.
(OR NOT some may disagree)
1. Matching source impedance to load will cause the source to
hams..Thats why the FCC has done nothing about it, they have
known about all the RF shootouts for 20 years, believe me it's no secret
I have even seen them at the shootouts walking around looking !!!
John
Does anyone know what size of screw is used on the
base plate of a D-104. I tried both 6X32 and 4x40 and
neither seem to fit.
Thanks
John, WAØSTX
--- StripMime Report -- processed MIME parts ---
multipart/alternative
text/plain (text body -- kept)
text/html
The reason this message
Thanks Al,
I'll find one of those handbooks and
take a look !
73
- Original Message -
From: [EMAIL PROTECTED]
To: amradio@mailman.qth.net
Sent: Monday, July 22, 2002 2:17 PM
Subject: Re: [AMRadio] Suggestions Please
HiThere are MANY examples of single band 813 amps in the old
Thanks Tom,
- Original Message -
From: [EMAIL PROTECTED]
To: amradio@mailman.qth.net
Sent: Monday, July 22, 2002 5:05 PM
Subject: Re: [AMRadio] Suggestions Please
J-
Take a look at the last few issues of Electric Radio (maybe March thru
May).
The big rig articles are for a rack
Thanks George !
- Original Message -
From: George Pritchard [EMAIL PROTECTED]
To: amradio@mailman.qth.net
Sent: Monday, July 22, 2002 3:41 PM
Subject: RE: [AMRadio] Suggestions Please
The 1956 handbook has a very nice 500 watt class C all band 813
transmitter
on page 198. I had that
901 - 998 of 998 matches
Mail list logo
