This circuit found in a 1964 US publication reverses the signal level by providing 9 to 0 V outputs from 0 to 9 V signals. Transistors may be equivalent.
Found in a 90s American documentation, this circuit uses an integrated from the time that is...
This circuit controls the brightness of incandescent lamps up to 400 W for the TIC226 series...
This decorative object was found in a Signetics documentation from the 60s. The circuit uses neon...