[ARC5] [Milsurplus] GO-9: Cathode Mod Questions

Roy Morgan k1lky68 at gmail.com
Tue Dec 24 12:50:23 EST 2019


Ken and others,

I remember cathode modulators made with the series pass regulator tubes 6AS7, 6080, and possibly their BIG Brothers, the ones with carbon plate structures.

I have not looked at all the links so kindly posted, but if one or more of them shows use of such tubes, I won’t be surprised.

I have a GO-9, so I am quite interested in all this.  Hoping one day to replace the PP-4763 that was lost in “the disaster” some time ago.

Roy


> On Nov 20, 2019, at 4:12 PM, Kenneth G. Gordon <kgordon2006 at frontier.com> wrote:
> 
> The October issue of Electric Radio Mag includes an excellent article on 
> cathode-modulation beginning on page 34.
> 
> I highly recommend it to anyone contemplating this method. From this article, it appears that 
> rather than dropping the final plate current by 50%, it is better to drop it even further before 
> modulation....like 70% lower, or 30 watts instead of 100 watts.n

Roy Morgan
K1LKY since 1958
k1lky68 at gmail.com






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