The integrated circuit of this amplifier is not very common today. The output transistors can be TIP31 and TIP32 in heat radiators. The circuit is from the 1977 National Semiconductor Audio Handbook.
In this circuit, a light-sensitive SCR or Light Activated SCR determines the operation of an...
This divider by 8 is synchronized because it is implemented based on TTL or CMOS logic according to the...
We found this circuit in a 2002 documentation. As it uses still common CMOS integrated circuits, it can...