Medium Wave Transmitter (CB21736E)

Found in Popular Electronics of January/February 1969, this transmitter has a few meters range and can be used as a wireless microphone.

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1 kHz High Pass Filter (CB25997E)
This first-order high pass filter is applicable to any operation requiring a dual power source. It was...
Variable Timing Ring Counter (CB6107E)
General Electric suggests this circuit in an 80's documentation. The circuit makes use of PUTs...
Transistor Bistable (CB20329E)
This circuit that appears in several versions in this section and on this website was found in...