Using a Motorola MC1684 integrated circuit this 1968 amplifier provides 1 W to a 8 ohm load. The response ranges from 20 to 20 000 Hz and the distortion is only 1% at 1 kHz.
This circuit uses the 7815 regulator to obtain a voltage for motor control num shield for PC. The...
This 12 V to 110 V inverter with 100 W was found in a 1977 Signetics manual. The transformer must...
This basic version of the timer with the 555 was found in documentation from the 1980s. The relay...