[ARC5] DC-DC: Need a Receiver Bias Supply?

[David Stinson]

----- Original Message ----- 
From: "Bill Cromwell" <wrcromwell at gmail.com>

> I haven't used zener diodes in a grid circuit as they are reported to be 
> excellent noise generators. I'm reluctant to put a noise generator on a 
> grid and degrade the receiver's noise performance. ...
> Are there some people who have used a zener diode in a grid circuit 
> (bias supply regulator) without noise problems? Maybe with a filter cap?
> 73,
> Bill  KU8H

That's an excellent point I hadn't thought of, Bill.
One of the reasons I'm so glad to have access to people 
smarter than me :-).

Since this is a little-to-no current bias supply, the small 
converters typically sourcing a Watt or two and already
regulated, perhaps a simple resistive Voltage divider 
is a better answer.  I'm going to look into that.

73 and Best for Christmas, Dave AB5S