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

[Paul Stump]

Gentlemen,

Thank you Roger, Jerry, Gary, Others.  This is a very interesting
thread and I will research it further.  

Thanks to all for the information. I will share any gems of wisdom I
may run across.

73,
Paul
NØLRF

--- "Gary H. Harmon Jr." <gharmon at idworld.net> wrote:

> 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
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