remote control potentiometer

R. Behrens 1R2/C2, becomes sufficiently large to make the output of the opamp go high. These output signals serve as control voltages for the electronic switches ES1 ... ES4 (ES1 and ES2 and resistors R3 .. . R6 form a flipflop). One of the two de voltages con- lied by P1 or P2 is also passed on to the output by way of the buffer A3. and R2 have deliberately remote controrl potentiomete This type of control makes it possible to regulate, for instance, the intensity of a light source or the of an amplifier etc. from a number of volume I d by the circuit locations. This function isfulfil described here via two potentiometers which act both as switch and regulator for direct current sources. What can it be used for? For example, when the telephone rings, and one of these control devices is situated close to the telephone, stereo equipment can be turned down from that location, provided the stereo system incorporates dc-controlled ICs such as the TCA 730 or TCA 740. As already mention...