[Amps] 50 w stud mount zeners

[Carl]

----- Original Message ----- 
From: "Roy" <royanjoy at ncn.net>
To: <Amps at contesting.com>
Sent: Friday, August 13, 2010 1:33 PM
Subject: Re: [Amps] 50 w stud mount zeners


>
> "6A10s are a good choice, but for a high bias tube like a GS-35b you
> need a lot of them - about 40. (24 VDC x .6 V per diode)."
>
>
> CW key up /  key down regulation is not good with a string of diodes. With 
> a
> dozen I measured a droop of 1-volt. With a 50 w zener it was nil.
>
> 73,  Roy          K6XK

An electrolytic across the string works well.

Carl
KM1H