ere's a photo of the 20-M CW/SSB transceiver's AGC and audio board, shown during construction and testing phases of development. Yes, it's a quick "dead bug" lash-up, but it works!
his view shows the transceiver's receiver section, with RF amplifier and front-end tuned circuit mounted atop the shielded VFO assembly.
The multi-section variable capacitor comprises part of the set's tuned front-end preselector.
ere's the IF amplifier and BFO board. The daughterboard at the upper right-hand corner is a 4-pole Ten-Tec 2.1-kHz-wide 9-MHz crystal filter. It was obtained new at a hamfest for 50-cents.
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to see the completed transceiver, along with magnified views of all circuit boards and assemblies.