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Yes, now this could work... use, say, a dual gate FET to replace Q90 and use
G2 as the DC gain control. It will take a bit of rework but it's worth a
shot. There either has to be a power measurement to close the loop for true
AGC to a power set point... or a look-up table stored with calibration data
for feed-forward control. I have to replace Q10 with a dual gate FET to get
my true RF AGC circuit to work so I'll try this at the same time.


Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ

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