Found in a 90s Hands On Electronics, this small preamp finds applications like microphones and other sources. Its gain is 3 dB with a response of 120 to 20 000 Hz.
This circuit generates 50, 100 and 200 Hz signals from a 2.2768 MHz TV crystal. The circuit can be...
This small power amplifier makes use of an output transformer given its design time. In fact, the...
This resistance meter with the CA3130 was found in an English publication from 1977. The circuit has...