[ARC5] Transmitter in 1950's F. Collins Radio Amateur's Handbook

[Geoff]

I wonder if that is the same Fred Collins who became Chief Engineer/VP at 
Microwave Associates/MACOM

Currently W1FC and living the good life.

Carl


----- Original Message ----- 
From: "Dennis Monticelli" <dennis.monticelli at gmail.com>
To: "Fuqua, Bill L" <wlfuqu00 at uky.edu>
Cc: <ARC5 at mailman.qth.net>
Sent: Thursday, December 12, 2013 9:47 PM
Subject: Re: [ARC5] Transmitter in 1950's F. Collins Radio Amateur's 
Handbook


>I have often thought about building a variation on this same transmitter
> with the 829B.
>
> Dennis AE6C
>
>
> On Thu, Dec 12, 2013 at 11:34 AM, Fuqua, Bill L <wlfuqu00 at uky.edu> wrote:
>
>>   When I was a kid our library had a copy of the "Radio Amateur's
>> Handbook" By Fredrick Collins.
>> There were 3 transmitter designs in it, a single tube 6L6, two tube 6L6
>> and my  favorite a
>> 70 Watt output 80-10 meter AM/CW transmitter using a 829B final.
>>   This was a single 6L6 driving the 829B with the grids in push-pull.
>> Screen modulated
>> using a 6V6  and carbon microphone but the plates were in parallel. Ok,
>> perhaps
>> the output stage was a doubler but there was no hint that it was, in fact
>> the plans specified
>> B&W 80-10 meter grid and plate coils.
>>   I want to some day build this transmitter but would either have to
>> parallel the inputs or
>> operate the output stage as a push-push doubler. If the screen grids were
>> independently wired
>> to the base you could modulate them in push-pull and have a high level
>> balanced modulator for
>> DSB, suppressed carrier.
>>   73
>> Bill wa4lav
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