I have the following items available, shipping extra:
Sherwood AMP-4 audio amplifier upgrade for R-4C: $30. Two available, used
perfect condition.
Sherwood R-4C 600 Hz 1st I.F. Roofing Filter, new never installed: $90
Sherwood R-4C Two-filter switching with PC board & RF relays with sockets,
new never installed: $80
Sherwood R-4C Custom Front-Panel AGC/First I.F. filter switch, new never
installed: $70
Drake R-4C 1500 Hz filter, used: $50
Drake R-4C 500 Hz filter, used: $50
Drake R-4C 8 kHz Stock Roofing Filter: $25
Will trade either the 1500 Hz or 500 Hz filter for an INRAD R-4C 250 Hz
filter.
Paul, W9AC
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