While on the subject, and really just for interesting discussion, for
many years I have toyed with the idea of a some what dynamic audio
control circuit for the screen of high level modulated tetrodes. The
circuit would be capable of adjusting the DC screen voltage while also
with a separate adjus
as pertaining to tube type transmitters:
===
Der vakuum-verstärker Übermittler ist nicht fur der gefingerpoken und
mittengrabben. Easy ist schnappen der drosselspule und kondensator,
blowenfusen und funkenüber mit der spitzensparken.
Ist nicht fur gewerken bie das Bürger-Banders. Das rubb
The other error I noticed is that the author talks about the Berlin Airlift
taking place in 1961--oops--it was actually 1948.
I betcha he got the date confused with the summer of 1961. Wasn't that
when the Berlin Wall went up?
I have a copy of the book, but I'm afraid I don't want to pa
Greetings all:
Does anyone know the resistance of the windings of a modulation transformer
in a B&W 5100B? Particularly the HV winding.
73 Jim
de W5JO
Hi Dave,
I haven't tried getting Jan---do you possibly have an e-mail address I
might try...?
Thanks in advance...!
~73!~ Eddy VE3CUI - VE3XZ
> Did you check with Jan Perkins, the biographer of Mr. Wallace?
>
> Dave, W3ST
> Secretary to the Collins Radio Association
> Publisher of the Collin
Did you check with Jan Perkins, the biographer of Mr. Wallace?
Dave, W3ST
Secretary to the Collins Radio Association
Publisher of the Collins Journal
www.collinsra.com
- Original Message -
From: "Eddy Swynar" <[EMAIL PROTECTED]>
To: ; <[EMAIL PROTECTED]>;
<[EMAIL PROTECTED]>;
<[EMAIL PROTE
Beware of the lightweight XFMRs Patrick. As the turns ratio is
increased, so the voltage on the input side. This will get you closer
to the voltage you want at the top of the modulation XFMR but the
insulation of the small XFMR may not hold up. You might be better off
with you first idea. Also
I purchased this book earlier this year and have really enjoyed it. I am about
90% through it. The only negative comment that I will make is that some
references in the book are not accurate. At one point, the author talks about a
photo of Don's RME receiving stuff on the inside front cover of D
Hello all AMers.
I have started collecting and laying out parts for the homebrew
40 meter AM transceiver.
I plan on using two 4d32 tubes modulated by four KT90 tubes.
The preliminary design goes like this
Transmitter
TX xtal osc: 5763
TX driver: 5763
Output: pair of 4D32 tubes
Mike amp:12AX7
Hi Everyone,
As Christmas fast approaches, all this AWA 1929 QSO Party stuff & homebrew
retro-superhets has me waxing for a nostalgic, good read over the coming
holidays...
To this end, I wonder if anyone might have a good, reasonably-priced copy of
Jan Perkins' book on DON WALLACE (W6AM) availab
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