[SixClub] Looking: 4-65A Amplifier Circuits...

[Gary H. Harmon Jr.]

I don't have my GE HAM NEWS here but it sounds like a project that might
have been in one of their issues?  I could be wrong of course.

===========/////===========
Gary H. Harmon, Jr.
K5JWK
6003 Archwood
San Antonio, TX 78239-1504
210.657.1549 home
210.884.6926 cell



-----Original Message-----
From: sixclub-bounces at mailman.qth.net
[mailto:sixclub-bounces at mailman.qth.net] On Behalf Of Sixmeterclub at aol.com
Sent: Sunday, January 15, 2006 4:02 PM
To: sixclub at mailman.qth.net
Subject: Re: [SixClub] Looking: 4-65A Amplifier Circuits...

 
In a message dated 1/15/2006 3:54:39 PM US Eastern Standard Time,  
50MHz at rogerhalstead.com writes:

Either  Motorola or GE had a VHF amp that used a pair of 4-125s, or 4-65s. 
You  might find an old repeater with one of these still in tact for little
of 
 
nothing. At any rate the schematics should be available

Roger  Halstead (K8RI and ARRL 40 year Life Member)
N833R - World's oldest  Debonair CD-2
www.rogerhalstead.com



The GE amp was biased for class "C" with a pair 4-125s and 4-65s would work

with proper voltages, The amp I am thinking of had a 2E26 driving a 4-65
with 
a  pair of 807s modulating the 4-65. Not the best plan but made a fair AM 
signal.  Some used a 4-125 in place of the 4-65.
 
You might also look into the Quintron paging transmitter using a 4-400, the

one for 48 MHz will tune 6 meters and the powersupply and was designed for  
650W full duty. You just need to bias the Final for SSB.I have seen then
sell 
for a little as $150 complete.
 
If I find the article I will scan it and send it to  NØLRF
______________________________________________________________
SixClub mailing list
Home: http://mailman.qth.net/mailman/listinfo/sixclub
Help: http://mailman.qth.net/faq.htm
Post: mailto:SixClub at mailman.qth.net