Jan-Martin Noeding, LA8AK wrote:
Mentioning a certain voltage level doesn't really make so
much sense when you don't know what the rest of detector
stages looks like. [snip]

Thanks for the interesting examples, Jan-Martin. The quote was from the 2004
ARRL HB page 17.23 in reference to a schematic/block diagram of a "typical
superhet receiver with AGC applied to multiple stages of RF and IF". The RS
DX-394 bears some resemblance to this with a resistor in place of the "Delay
Diode". It beats me how the AGC in this HB example actually controls the RF
gain - the diode appears to block control. A second one in parallel in the
opposite direction seems to me to be needed.

Tom