Audiovox MDU6000,
Tristar 727,TRS
Challenger 850/1400
This chip uses 7 bit
BCD/ROM programming
using several sets of
Ncodes,depending on mode
and IF choice.
This can be modified by
injecting new mixing
frequencies with a
external
oscillator/crystal
switch
(THE
SCREWDRIVER
EXPERT’S" GUIDE By
Lou
Franklin, K6NH) |