[Boatanchors] sweep tubes (was Re: Galaxy V)

[Rodger Singley]

And it provided a source of shack heat in the winter 😊  The article is available here at the excellent American Radio History site which contains an incredible resource of early radio magazines and literature:  http://americanradiohistory.com/Archive-Radio-News/50s/Radio-News-1956-10-R.pdf

Rodger WQ9E


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From: Michael Clarson<mailto:wv2zow at gmail.com>
Sent: Friday, September 16, 2016 3:21 PM
To: Rodger Singley<mailto:wq9nsc at live.com>
Cc: Boat Anchors List<mailto:boatanchors at mailman.qth.net>
Subject: Re: [Boatanchors] sweep tubes (was Re: Galaxy V)

Rodger: I bet it was tough to overload the 2C39 rcvr front end! --Mike, WV2ZOW

On Fri, Sep 16, 2016 at 4:05 PM, Rodger Singley <wq9nsc at live.com<mailto:wq9nsc at live.com>> wrote:
Michael,



That must be another descendant of the 6L6 which provided the basis for the 807 (and military 1625 variant).  I believe this is the first time I have heard of someone using a transmitting tube in a TV set instead of a sweep tube in a amateur transmitter, well done ?



The October 1956 issue of Radio and Television news contained a construction article for building a 2 meter grounded grid receiver preamplifier using a pair of forced air cooled 2C39 transmitting tubes which was also rather unique.



Rodger WQ9E