Full Wave Control (CB6554E)

This 1968 Texas Instruments circuit uses diacs of the era. SCRs can be modern equivalents according to the controlled load.

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100 kHz crystal oscillator (CB9638E)
This basic 100 kHz oscillator is suitable for use in calibration. We found it in documentation from the...
Analog Multiplier (CB7930E)
Found in a 1968 EEE, this circuit accepts frequencies from 1 to 1000 Hz and control voltages from 0.1 to...
Photodiode Amplifier (CB13150E)
National Semiconductor suggests the circuit shown in the figure for amplifying signals from two...