12V x 10A power supply (CB21775E)

This power supply is from a 1977 documentation. The transformers have 11 V secondary with 10 A.

555 Doorbell (CB25531E)
This simple circuit was found in the November 1992 issue of Radio Electronics magazine. It...
Pulse Generator for Thyristors (CB13802E)
This circuit generates pulses to trigger power controls with SCRs and Triacs. We found it in a...
FM demodulator for optical transmitter (CB25537E)
This circuit works with the previous two by demodulating the signals received modulated in FM. The...