Thermometer (CB19856E)

The sensors and integrated circuit used in this circuit are uncommon today. However, it is worth the configuration for the purpose of consultation.

| Clique na imagem para ampliar |

Waveform Generator (CB22447E)
Based on 4066 CMOS, we found this circuit in a Popular Electronics from 1992. The signal is...
80 m Regenerative Receiver (CB20231E)
This receiver of two transistors for the 3.5 MHz band was found in a circuit manual from the 80's....
5A Regulator 5 A LM2931-5.0 (CB14516E)
This circuit uses an unusual Motorola integrated. The circuit is from Motorola's 1990 Linear...