Anatomy of a homebrew 40m superhet receiver
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Anatomy of a homebrew 40m superhet CW transceiver
12:05
#339: Basics of a Super-heterodyne Receiver - how it works, and a peek at the signals
23:34
7 transistor 7 MHz 700mW FT8 and JS8 DSB transceiver
13:06
Super simple 40m receiver and notes on RF breakthrough
17:19
O QRM está matando o rádio amador para mim e para muitos outros. Há algo que possamos fazer?
36:12
Homebrew 80/40m SSB/CW Rig - #7 IF Amps, Superhet Receiver
17:44
Vintage Technology: Electronics-- BASIC RADIO CIRCUITRY, Learn How Radio Works, 1971 (History)
12:51