Laser 6kV source (CB21009E)

This high voltage source for gas LASER was found in documentation from the 1990s. The circuit is low current.

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Regulated 5 V Power Supply LM309k (CB20195E)
This power supply that we found in an old American documentation uses an integrated circuit that...
Wideband Amplifier (CB24736E)
Found in the February 1983 Radio Electronics magazine, this circuit uses a FET and has good gain...
100 kHz Crystal Calibrator (CB3926E)
This crystal oscillator circuit is indicated for use as a frequency reference in the calibration...