We found this circuit in an old General Electric documentation. In fact, PUTs are not common components today. The circuit is valid as a reference.
The scratch is the noise of scratching or scrape that occurs when scratched vinyl records are...
In the figure we have a way to obtain a 15 V symmetrical source with a 30 V single winding...
We find this circuit in a 1980s documentation. The circuit is for SSB modulation and the...