This circuit is from 1985 documentation. The integrated circuit is not very common today, but modifications can be made leading to a project with current integrated circuits.
This circuit is from 1968 and consists of an amplifier for turntable of the time. The CA3020 was...
The high sensitivity of this type of SCR recommended in our assemblies allows it to be triggered by low...
This two-transistor amplifier was obtained from a 1977 Radio Handbook. The configuration is valid...