Differential voltage reference (CB8677E)

Using neon lamps, this circuit from a 1969 publication provides 17 V of maximum voltage or else adjustable.

| Clique na imagem para ampliar |

LED strobe CIR11912S (CB19565E)
CMOS 4046 (PLL) is not very common. In this circuit it generates short pulses to excite a high...
Thermostat (CB12205E)
The sensor of this circuit is an NTC of 20 to 50 k resistance at room temperature. The circuit is from a...
3W Amplifier with treble (CB6305E)
This circuit was found in an English documentation from 1969. The transistors are of the time,...