Personal amplifier (CB8928E)

This circuit was found in a 90s Popular Electronics. The integrated circuit used is uncommon today. The power is about of 2 W.

| Clique na imagem para ampliar |

Microphone Preamplifier (CB23956E)
We found this circuit with JFETs in a Radio Electronics magazine from June 1969. The circuit has...
Frequency divider (CB7969E)
Indicated for frequency measurements, this circuit can operate with inputs up to 1 MHz. We found...
741 200 mW Amplifier (CB25291E)
This general-purpose transistor audio amplifier was found in the March 1990 issue of Radio...