Model control speed (CB20791E)

Found in old documentation, this circuit uses an SCR like the TIC106 that must be equipped with a heat sink. The motor can be up to 3A.

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Reservoir Level Monitor and Controller (CB17448E)
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1 to 4 MHz CMOS Oscillator (CB9658E)
This traditional crystal oscillator configuration can use any CMOS gate configured as an inverter. R1...
Simple AC129 or OC80 stage (CB4266E)
This amplification stage circuit with a germanium transistor was found in a 1980s documentation. The...