This circuit was obtained from American documentation from 1966. It triggers when the two input voltages are within a pre-established range. The circuit can be mounted with modern transistors.
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...