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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Sinusoidal to Square Converter (CB5105E)
This circuit, which can be used as a shield, was found in old documentation. The circuit must be...
Burnt Transistors as Rectifiers (CB23787E)
At that time, practical ideas were interesting, and many can still be used today. In the figure we can...
AC Power Switch with Optocoupler (CB12416E)
This solid-state relay circuit (SSR) or shield is from a 1995 Electronics Now. With it we can...