Logic level converter (CB7250E)

Found in an Electronic Design of 1965, this circuit consists of NOR gates and can be used in astable and monostable multivibrators.

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Variable Frequency Crystal Oscillator (2) (CB12257E)
Frequencies from 1 to 10 MHz can be obtained with a small adjustment of the variable in a narrow...
Two Controls Flasher (CB16241E)
This flasher of two incandescent lamps was discovered in a 1983 documentation and it has two...
Treble Booster (CB12322E)
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