Radio constructors "Fon-2", "Fon-3" and "Fon-4".

Radio and electrical constructors, sets.Audio AmplifiersRadio constructors "Fon-2", "Fon-3" and "Fon-4" have been produced since 1983. The "Fon-2" radio designer allows you to assemble a monophonic low-frequency amplifier on a 174UN7 microcircuit. RC "Fon-3" allows you to assemble a pre-stereo amplifier with a tone block, which can be used with the final power amplifier from RC "Fon-4". The Fon-4 radio constructor allows you to assemble a final stereo power amplifier with a nominal output power of 10 watts.