FT101B CW stability
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The CW/AM buffer in the FT-101B/PB-1184A can be unstable due to regeneration.
This can be resolved by:
Change Q2 2SC372Y/2SC828P to a BF199.
Change R8 to 10K.
Insert a 220R resistor between the collector and its tuned circuit.
Put a zener diode (1N5237B) across capacitor C15.

This was OK for CW, but I didn't try it on AM before selling it. On
reflection, maybe it was wrong to change R8. You'll have to experiment.

73 Jan-Martin LA8AK

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