This circuit was found in a 90s Radio Electronics. It is intended to amplify the sound channel of analog televisions of the time. The integrated circuit used is uncommon today.
This small MW transmitter emits its signals at a distance of a few tens of meters, depending on the...
Found in a 90s 303 Circuits, this circuit has an output power of 100 mW. L1 consists of 890 turns...
The coil and sockets of this circuit found in a QST depend on the frequency band that is intended...