Found in a 1967 Electronics World, this preamplifier uses an integrated circuit from that time, difficult to obtain today. The maximum frequency is 15 kHz.
This circuit was found in the July 1992 issue of Radio Electronics magazine. The circuit has a...
This useful power supply can provide voltages from 0 to 12 V with currents up to 2 A, set in...
This circuit can be added to any audio amplifier design, consisting of a good tone control with an...