Datasheet of This amplifier uses a pair of complementary transistors at the output and can provide 1 W of audio at a load of 3-ohm. Higher impedance speakers can be used. The circuit is from an English publication from 1986 and TR1 can be a | BC548. The supply can be done with voltages from 9 to 18 V. The trimpot adjusts the resting current, which must be in the order of 20 mA.
Found in a documentation for radio amateurs from 1977, this circuit is intended to power equipment from...
This circuit was obtained from a 1978 Practical Wireless. It makes a speaker emit sound when there...
This circuit was obtained from a Radio & Electronics Constructor from March 1976. The magazine no...
