This circuit converts BCD inputs to analog voltages. The operational amplifier must be powered according to the desired output voltage range. The circuit is from documentation from the 90s.
This circuit doubles the pulse rate produced by a digital TTL circuit. The circuit is from a 1976...
The TL431 integrated circuit consists of a programmable shunt regulator with an internal...
The transformer inf this circuit is a 6 or 9 V unit and diodes 1N4002. The filter capacitor is 2...