Synchronized AC switch (CB9261E)

Found in a 1965 General Electric circuit manual, this circuit uses SCRs from that time. Modern equivalents according to the power can be used.

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Digital Band Pass 10 to 20 kHz Filter (CB13536E)
This circuit was obtained in the 1977 RCA CMOS manual. The circuit has the frequencies determined by the...
Multiplex Series Lamp (CB6874E)
We found this circuit in a 2004 documentation. The circuit consists of a standard lamp for testing...
Difference Amplifier (CB6429E)
Found in a Popular Electronics of the 90s this configuration can be seen elsewhere on our site....