Tubes

Articles
Title
Driver for oscillograph (T459E)
Voltmeter with high gain amplifier (T458E)
Tube voltmeter (T457E)
Gain 10 Voltage Amplifier (T456E)
Voltage regulator (T455E)
Servo amplifier (T454E)
3-stage amplifier (T453E)
T ube driver (T452E)
High gain 7 tube stage (T451E)
6AC7 Amplifier (T450E)
High gain amplifier (T449E)
100 dB amplifier (T448E)
Multi-frequency amplifier (T447E)
Multi Tube Amplifier (T446E)
Multi-stage amplifier 3 (T445E)
multi-stage amplifier 2 (T444E)
Multi-stage amplifier (T443E)
Pulse amplifier (T442E)
Metal detector (T441E)
Two tube exciter oscillator (T440E)
Tetrode oscillator (T438E)
Crystal oscillator with a 6A6 (T437E)
Crystal oscillator with the 42 tube (T436E)
Pre selector (T435E)
5 meter receiver (T434E)
Advanced regenerative receiver (T433E)
Regenerative Gainer Receiver (T432E)
Dual triode receiver (T431E)
Code practice neon oscillator (T430E)
Telegraphy practice oscillator (T429E)

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