How many RF stages?
Scouting around (plagiarising?) published designs for HR RXs and sundry
boatanchors, it seems that where there are tuned RF stages, then 2 tank
circuits seems to be the norm, and then only 3 ccts if the RX IF
is ooo 455kHz when the coverage needs to extend to 30MHz.
Looking at the rate of progress here (or lack of it!!) I am trying to
conceive of a scheme to use up all the tuning condensers (capacitors
only came in AFTER some of them were manufactured :-) ) in
the junk box in one final big push to releve the executors of my will
of difficult decisions :-)
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