[Collins] 399B-5 crystal osc adapter

[Dr. Gerald N. Johnson]

On Mon, 2006-09-11 at 00:28 +1200, Dave Brown wrote:
> Does anyone have the installation instructions for this unit? I'm 
> interested to see how/where it was intended to mount in the KWM-2.
> 73
>  Dave, ZL3FJ
> 
> 
http://www.ipass.net/hockaday/radio.html offers instructions and crystals for a price.

http://www.surplussales.com/Manuals/man_col.html offers the manual for a
price.

I didn't find mention in the military KWM-2 manual I have downloaded.

Digging in the KWM-2 schematic in my Yellow Book, there is an external
VFO connector. That applies power and has voltages available only in
receive or transmit to allow switching. The pictures I found on line
show separate RF cables with considerable length. With the crystal
switch on the 399B-5 it has to be reachable with the lid lifted. It
might well mount on the lid like the KWM-1 noise blanker.
-- 
73, Jerry, K0CQ, Technical Advisor to the CRA
All content copyright Dr. Gerald N. Johnson, electrical engineer