This circuit was fond in an old publication of the years 1950. The transistors are germanium types and equalization is RIAA.
This circuit was obtained in an English publication of 1975. It is a regulator circuit for...
This circuit produces fast light pulses in na incandescent lamp. Pulse rate is adjusted by P1. The...
In the figure we have the CMOS logic test circuit developed with the 4049. The circuit activates three...