This is the circuit of a European commercial amplifier. It was published in Radio Electronics magazine in September 1958 and has a power of 5 watts with good sound quality.
The output transistor used in this amplifier must have Vce of at least 200 V and Ic of 1 A and...
Found in a 1968 US documentation, this circuit shows how to use the resistance-scale multimeter to...
This filter is inserted between the interfering device and the interfering device. The coils are...