Found in Motorola documentation from the 1980s, this circuit employs an integrated device from that time, which is unusual today.
Found in a 1969’s documentation, this circuit can supply currents from 100 to 120 mA at loads of...
We found this receiver in old documentation. The transistor is made of germanium and the...
We found this project in a 1982 publication. What we have here is an audio signal relay trigger, which...