Peter's detective work on the mystery box starts at around 13 minutes into this video. He quickly found a balanced modulator and did not find a crystal filter. This led him to correctly suspect a double sideband transceiver. A look at the LP filter and the VFO led him to suspect a 160 meter rig. Nice work Peter. That's what it is: a 160 meter DSB transceiver.
I had a similar experience with a direct conversion receiver, but never with a full double sideband transciever. Nice find. Peter should try to bring that rig back to life, and he should try to find out who built it.
The Solid State Basics book by DeMaw and Rusgrove looks good. I hadn't seen that one, but I will get one.
Thanks Peter!
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Excellent video! We should have more videos like Peter's, as it helps us identify and educate us about the potentially good loot we often find at the hamfests. Fodder for your next homebrew rig.
ReplyDeletePeter's did excellent detective work on that DSB rig.