This circuit was suggested by National Semiconductor in one of its manuals. The LM108 integrated circuit, uncommon nowadays, can be replaced by an equivalent. The power supply must be symmetrical.
This circuit generates pulses at a frequency that can be adjusted by a potentiometer. The circuit is...
In this application we show how to get tuning from 0 V to an LM350 regulator IC. The setting also...
The circuit presented is a simple MW tuner that can be plugged into the input of any audio...