This circuit implements a 3-way control, with outputs in A, B and C, using CMOS integrated circuits. I found this circuit in an old publication from 1978.
The circuit shown in figure is based on the ST Microelectronics TDEO0160 (www.st.com) and consists of...
This circuit was found in a 90s Popular Electronics. The frequency is determined by R3 and C1 that...
The integrated circuit used in this amplifier is not common today. The power can be between 4 and...