[AMPS] cathode degeneration

George T. Daughters gdaught6@leland.Stanford.EDU
Fri, 15 May 1998 08:38:21 +0008


hi carl,

you wrote...

> ... an article many years ago about modifying the NCL-2000
> that way. Since I was on the original design team and had 3 of them
> ( still do) I decided to try it. It was an absolute disaster above
> 20M....oscillation city. 

and that danger is very real!  that's what prompted my original post 
on the subject, which said...

> >not always!  it depends on the phase of the feedback that results.  
> >in fact, it is very easy to build an oscillator that has the cathode 
> >away from (RF) ground!  

73,

George T. Daughters, K6GT

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