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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Driving a 7-Segment Display - 4026 (CB177)
The 4028 CMOS IC not only contains the complete decade counter, but also the 7-segment decoder...
Powerful FM Transmitter (CB17011E)
This transmitter has a few watts of output power, having been found in a 1997 documentation. L1...
Simple RF wattmeter (CB3892E)
This circuit, found in US documentation, can measure the power of transmitters up to 10 W, given...