The operational amplifier for this tone control found in a 1977 Signetics manual may be the 741. The power supply must be symmetrical and the signal cables short. The bass gain is 20 dB.
With the use of a cascade transistor, the dynamic response of a phototransistor can be increased, as...
Adders appear several times on this site with operators of all types. In this circuit the output...
This setting appears elsewhere in this section with variation. We obtained it from a foreign...