Tubes

Articles
Title
10W Transmitter For the 40 and 80 Meters Band (T079E)
Thyratron Regulated Power Supply (T078E)
Tube Frequency Meter Up to 100 kHz (T077E)
Transforming a Tube Radio into an MW Transmitter (T076E)
Q Factor Meter (T075E)
Circuit With Thyratron Tube (T074E)
Tube XTAL Oscillator (T073E)
Tube Operational Amplifier (T072E)
Insulation Meter (T071E)
20W AM Transmitter (T070E)
Adapter for Multimeter (T069E)
3W Tube Amplifier (T068E)
Tube Stabilized Power Supply (T067E)
21 MHz Pre-Selector (T066E)
Instantaneous Tube Intercom (T065E)
High Voltage Insulation Test (T064E)
2-Tube Phonographic Oscillator (T063E)
Tube Voltmeter 2 (T062E)
Tube Voltmeter (T061E)
100 kHz Marker (T060E)
Double Triodo Phase Shift Oscillator (T059E)
Phase Shifting Oscillator (T058E)
5 + 5 W Amplifier (T057E)
Eco Mechanical Unit (T056E)
Small Tube Amplifier (T055E)
VHF Receiver (T054E)
Ultralinear Stereo Amplifier (T052E)
Cheap Stereo Amplifier (T051E)
Telegraphy Oscillator (T292E)
15W Old School Fashion Amplifier (T050E)

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