Some of us are showing our age! Next we will have the real OT's telling us
how they debased 30's tubes to get on 5 M and above.
Carl
KM1H
----- Original Message -----
From: "Bill Fuqua" <wlfuqu00@uky.edu>
To: "jeremy-ca" <km1h@jeremy.mv.com>; "Pat Barthelow" <aa6eg@hotmail.com>;
<amps@contesting.com>
Sent: Thursday, July 26, 2007 9:47 AM
Subject: Re: [Amps] Gassy Tubes/Technology Museum looking for artifacts
> Some 1625s , but not all had separate "beam forming plate" leads and
> cathode leads. They could be modified for Grounded Grid operation.
>
> 73
> Bill wa4lav
>
>
> At 09:33 AM 7/26/2007 -0400, jeremy-ca wrote:
>>Beside filament voltage and base configuration? I do know of one other
>>that
>>was very important to amp builders of the era. Want to take a shot at it?
>>
>>Carl
>>KM1H
>>
>>
>>----- Original Message -----
>>From: "Pat Barthelow" <aa6eg@hotmail.com>
>>To: <amps@contesting.com>
>>Sent: Thursday, July 26, 2007 12:39 AM
>>Subject: [Amps] Gassy Tubes/Technology Museum looking for artifacts
>>
>>
>> > Folks:
>> >
>> > I grew up in the early era of Mr. Wizard, Renwal Electrostatic
>> > Generators,
>> > crystal Radios, and Heathkits. I know the TWO distinct differences
>> > between an 807 and a 1625 tube. I also know an ARC- 5 when I see
>> > one.
>> > I suspect many here know these artifacts of Technology history, too.
>> >
>> > While looking for information about residual gas in transmitting tubes,
>> > I
>> > found this article, a very good read:
>> >
>> > http://www.smecc.org/r__m__r__residual_gases.htm
>> >
>> > After reading this, I looked to the root source of the article and
>> > found
>> > SMECC ,
>> >
>> > http://www.smecc.org
>> >
>> > A great organization that is described below. Please check it out,
>> > and
>> > look through your junk boxes to see what yoiu can cotribute to their
>> > Mission:
>> >
>> > SMECC: Our
>> > Mission:
>> > Preserving Engineering, Communications and Computation History
>> > We seek the three dimensional artifacts, the papers and thoughts of
>> > those
>> > who pioneered the technology.
>> >
>> > Sincerely, Pat Barthelow aa6eg@hotmail.com
>> > http://www.jamesburgdish.org
>> > Jamesburg Earth Station Moon Bounce Team
>> > http://www.cq-vhf.com
>> >
>> >
>> > _______________________________________________
>> > Amps mailing list
>> > Amps@contesting.com
>> > http://lists.contesting.com/mailman/listinfo/amps
>>
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>
>
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