The used diode is an unusual component today. We found this 12 V regulator in documentation from the 90s.
This circuit was found in the August 1993 Electronics Now magazine. It is for telephones used on...
Found in a 90s Hands On Electronics, this small preamp finds applications like microphones and other...
This circuit was found in a 1999 British magazine (ETI). It is a device that receives the signal...