Common referenc dual regulator (CB8691E)

We found this symmetrical regulator in a documentation from the 70s. The circuit uses components from that time, which are difficult to find today.

| Clique na imagem para ampliar |

AD590 or AD592 Temperature Sensor (CB25446E)
This circuit allows you to read temperatures with a common digital voltmeter. We found it in the...
Voltage Indicator (CB18187E)
This circuit for the 1.5 to 15 V scaled ranges was found in a 1982 documentation, but uses current...
4.8 MHz TTL Oscillator (CB13857E)
The integrated circuit of this 1976 configuration is the 7400 and the type crystal in televisions of the...