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Sophisticated public address amplifier from 1939 (T684E)
Regenerative shortwave receiver (T469E)
Signal Generator (T1097E)
Vox (T790E)
Stromberg Carlson 411 Radio with Phono Input (T718E)
Portable AM Transmitter (T505E)
20W HiFi Amplifier (T496E)
Power supply for the experimenter (T449E)
Intercom via power grid (T1154E)
Phonograph Oscillator (T1118E)
Radio Belmont 6DL11 (T1056E)
2 Tube Receiver (T1034E)
Signal Tracer (T1006E)
Capacitive relay (T914E)
5-tube Receiver (T936E)
FM Super regenerative (T864E)
Antique Multimeter (T840E)
4-tube Portable Receiver (T863E)
Measuring powers with the multimeter (T804E)
Bench Power Supply (T770E)
1941 Simple Amplifier (T746E)
1943 Guitar Amplifier (T731E)
Voltmeter (T684E)
30W Amplifier (T489E)
Timer (T469E)
Single Tube Amplifier (T431E)
Shortwave Converter (T1078E)
1-tube regenerative radio (T971E)
32 V Receiver (T959E)
Hartley Phonograph Oscillator (T909E)

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