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Title
Crystal noise generator (T468E)
Noise generator (T467E)
Low noise amplifier (T466E)
Microammeter (T465E)
Differential amplifier (T464E)
Voltage inverter (T463E)
Three-stage differential input amplifier (T462E)
Oscilloscope voltage amplifier (T461E)
Servo amplifier (T460E)
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)

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