Found in Linear Technology documentation, this circuit drains only 70 uA of the monitored circuit. The components used are from that time.
We found this circuit in a 1977 factory documentation. The operational amplifiers can be 741 and...
This circuit is a small FM transmitter, capable of carrying its signals over short distances...
This 6-transistor Japanese commercial radio was manufactured in the 1960s. The receiver is a super...