7-segment display driver (CB20551E)

We found this circuit in English documentation from 1996 for PCs. The circuit is for common cathode display.

Adjustable Voltage Reference (CB13195E)
The operational amplifier used in this circuit is no longer common on the market, as the circuit is...
Preamplifier Module (CB1386E)
This circuit of the 1970s uses Germanium transistors. Changes can be made to use silicon...
() CB8710E Turns on and off with SCR
We found these circuits in a 90s Radio Electronics. In them, we have the way to turn a load on and...