Found in Unitrode documentation, this oscillator uses some unusual components today such as PU and the 3 M potentiometer. The power can be made with voltages around 15 V.
We found this circuit in the 1977 National Semiconductor Audio Handbook. The circuit produces a...
The times for this timer, found in a 1997 documentation, can be adjusted to 30, 60 and 90 minutes. The...
This powerful FM transmitter with FET can reach more than 1 km in favorable conditions. L1...