[Collins] WTB Balanced modulator FA4200E

[Glen Zook]

I believe that part is the 4 diode "ring" assembly.  You can make a replacement using 4 schottky diodes and a small piece of "perf board" for around a dollar or two.  Remember that thousands of KWM-2 series and 32S- series units had individual diodes instead of the little "potted" component.

I have done such when upgrading the very early units that had only the 2-diode balanced modulator to the better 4-diode version.

Glen, K9STH

Website:  http://k9sth.com


--- On Mon, 11/24/08, Dutch Maurer WB7DYW <wb7dyw at yahoo.com> wrote:

From: Dutch Maurer WB7DYW <wb7dyw at yahoo.com>

I am looking for a Balanced modulator FA4200E for the KWM-2A, I know SSN has them at $70, any source for them elsewhere?? Or maybe someone has a spare for sale??