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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Hybrid trigger with tunnel diode (CB6817E)
This circuit was found in a 1967 General Electric documentation. The circuit generates signals...
Schmitt Trigger (CB221E)
Sine signals are converted into square signals by this simple circuit. The maximum frequency is...
Touch Switch (CB6451E)
We found this touch control on a Popular Electronics from 1970. The circuit makes use of an...