Tubes

Articles
Title
One Tube Telegraphic Oscillator (T012E)
One Tube MW Receiver (T013E)
Tubes (T011E)
Grid Controlled Rectifier (T010E)
Modulated High-Frequency Oscillator (T009E)
Chatode-Coupled duo Triode Oscillator (T008E)
Experimental Audio Oscillator (T007E)
Staircase Generator (T006E)
Schmitt Trigger (T005E)
Electronic Switch (T004E)
High-Fidelity Audio Amplifier (T003E)
Spiral Time Base Generator (T003E)
Code Practice Oscillator (T002E)
Tubes – How they work (T001E)

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3 W FM transmitter (CB18765E)
This circuit was found in a documentation from the 90's. Power is included, and the regulating...
Doubler from 150 to 300 MHz (CB4870E)
We find this circuit in the 80s used integrated circuit manual itself. The integrated circuit is not...
Current-controlled oscillator (CB21648E)
This sweep generator or current-controlled oscillator was found in Popular Electronics from...