Unijunction Triac Control (CB25861E)

This power control circuit was found in an article in the June 1995 Electronis Now magazine. The circuit makes use of a trigger transformer.

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Instrumentation High Impedance Stage (CB13413E)
We found this circuit in a 1976 documentation. The FET can be the BF245 and the bipolar transistor a...
15-Channel Remote Control Receiver (CB13998E)
This circuit is the receiver for the CB13997E. The transistor can be the BC548. We also found this...
3 to 20 MHz XTAL Oscillator (CB13870E)
We found this oscillator in a publication for radio amateurs from the 70s. The circuit generates...