This static switch or triac contactor was obtained from Philips 1969 documentation. The SCR is from the era, but modern equivalents depending on the load can be used.
We found this transistor circuit in a 1967 General Electric documentation. The circuit makes use of...
This circuit has a gain of 6 dB for low frequencies from 85 Hz and can be used in a mini...
This TTL dice was found in an old American 1980s documentation, but can still be easily assembled....