More about amplifier (485)

1-07-1984 | // the ratio of R2 + R3 + P1 to R3 + P1. The input impedance, which, at 1 M, is quite high, is de- fined by R1 as the op-amp has FET inputs....

1-07-1984 | at least 120 W into 4 Q The TDA 2030, made by SGS Ates, is a complete amplifier contained in a single IC with a five-pin Pentawatt package....

1-07-1984 | a class AB design for 4 Q or 8 Q loads This is an amplifier with a very simple layout that none the less pro- duces quite a high power. Powe...

1-07-1984 | .for power amplifiers There is no doubt about the value of a switch-on delay for a power amplifier. We all know the irritating (and potentia...

1-05-1984 | mini crescendo elektor may 1984 When we published the design for the "Crescendo" power amplifier in December 1982 it proved very popular wit...

1-12-1983 | video amplifier elektor december 1983 universal amplifier and distri butor for video signals A video amplifier rarely needs a high gain. By...

1-07-1983 | elektor july/august 1983 1 car PDM amplifier T This power amplifier, designed for use in a car, delivers 10 W into 4 S2 and because it uses...

1-07-1983 | 13 Iogarithmic amplifier The performance of the operational amplifier, the circuit diagram of which is shown in figure 1, is best seen from...

1-07-1983 | LED "amplifier" The light emission of an LED is normally pretty low. If more brightness is required, the following circuit will help. The LE...

1-07-1983 | elektorjuly/august 1983 78 40 watt main amplifier Our December 1982 issue featured the 2 x 140 watt Crescendo; here we describe the circuit...