[Amps] amplifier in 1960's QST

Paul Christensen w9ac at arrl.net
Mon Dec 4 20:54:32 EST 2017


Possibly the Galaxy 2000+.  A full description was authored by Wilfred
Scherer, W2AEF and appears on p. 17 in the January, 1967 issue of CQ
Magazine.    A total of <gulp> ten (10) 6HF5 sweep tubes are used in
parallel.  The design also makes use of a dynamic linearizer by sampling
input and output RF voltage.  Non-linearity produces a voltage that's then
applied to a series regular in the bias supply.

Paul, W9AC

-----Original Message-----
From: Amps [mailto:amps-bounces at contesting.com] On Behalf Of Carl
Sent: Monday, December 4, 2017 7:53 PM
To: Fuqua, Bill L <wlfuqu00 at uky.edu>; amps at contesting.com
Subject: Re: [Amps] amplifier in 1960's QST

I vaguely remember the article and the tube load was 50 Ohms so there was no
Load control!!

WRL or Globe had a something 2000 that was all sweep tubes.

Carl


----- Original Message -----
From: "Fuqua, Bill L" <wlfuqu00 at uky.edu>
To: <amps at contesting.com>
Sent: Monday, December 04, 2017 12:06 PM
Subject: [Amps] amplifier in 1960's QST


>I have been looking for an article about a suitcase kW amplifier using a 
>load of sweep tubes. directly off power line power supply (voltage 
>multiplier) and a broadband matching network. Not interested in building 
>one because there are all sorts of problems with the idea. I think it was 
>in late 60's but I can't find it. Perhaps it was not QST.
>
> Anyone remember it?
>
>
> 73
>
> Bill wa4lav
>
> _______________________________________________
> Amps mailing list
> Amps at contesting.com
> http://lists.contesting.com/mailman/listinfo/amps 


---
This email has been checked for viruses by AVG.
http://www.avg.com

_______________________________________________
Amps mailing list
Amps at contesting.com
http://lists.contesting.com/mailman/listinfo/amps



More information about the Amps mailing list