[Collins] re zener diode mod to kwm-2 pto

[Fern]

    Since I haven't been able to find any information re the zener diode mod 
to correct a shift in frequency between transmit and receive on a collins 
kwm-2, last night I contacted Dennis Brothers about that and here's what he 
told me.
   The fix for that will appear in a late manual of January 1978 Rev 1. 
Apparently, there never were any service bulletins to show that fix so it's 
a case of having this late manual. Along with that Collins had a fix for the 
xtal oscillator circuit V13 which should also be shown in the same manual.
  Since I don't have that late a manual, I would appreciate if anyone could 
scan those two portions of the schematic especially the one to do with the 
zener in the pto circuit so that I can properly repair this kwm-2 that I 
working on now. Or I would be interested in purchasing a complete manual 
issued Jan 1978 Rev 1 please. The shift between transmit and recieve is 
enough that I'm told that I'm off frequency which is quite anoying.
   73 from Fern   VE7GZ