This small receiver for the medium wave range was found in Radio Electronics magazine from July 1958. The circuit is for listening to headphones and powered by batteries.
The power transistors in this circuit can be BD135/BD136 or TIP31/TIP32. The circuit is from an...
With distortion of less than 1 dB from 10 Hz to 20 kHz this circuit was found in the December 1972...
This circuit shows how to use a 12 V regulator to obtain a higher voltage output. The...