[Collins] 399B-5 crystal osc adapter

[Dr. Gerald N. Johnson]

On Mon, 2006-09-11 at 08:39 +1200, Dave Brown wrote:
> OK- Tks for comments Jerry. - And Dave, the CRA has no specific info 
> on where it was mounted- just a pic of the unit-same as per WA3KEY.
> It was fairly obviously a plugin replacement for the 312B-5, in so far 
> as it must have used the VFO power connector.  But it would have to be 
> mounted clear of the noise blanker on the lid and there's not a lot of 
> room on there to put anything else with the 136B-2 in place. I have 
> had a direct email that suggested it may have been mounted on the side 
> of the PA cage - which seems likely-can anyone else confirm this? A 
> photo of one in place would be great-I thought maybe the installation 
> instructions may have had one.
> 
> 73
> Dave, ZL3FJ
> 
I'd think some early edition of the KWM-2 manual would have a picture
installed. Eventually with the advent of better radios like the M-2,
novices were allowed to be VFO controlled and the crystal control
adapter would have been neglected. It would have been a relative pain to
use for commercial point to point, demanding both the bandswitch and the
crystal be selected to hit a frequency as well as tuning the PTO to that
same frequency, not something agreeable to the pure appliance operator.
Better to have had a 32RS or KWT-6 for that application.

Both the pages I listed have the manual, about 4 pages, for $15.

-- 
73, Jerry, K0CQ, Technical Advisor to the CRA
All content copyright Dr. Gerald N. Johnson, electrical engineer