Solar Voltage Doubler (CB20482E)

This circuit is intended for carrying out experiments with solar cells. The circuit is from a 1991 documentation.

Thermostat (CB6008E)
This circuit controls a heating element using a triac. Triac must be fitted with a heat sink. We...
Amplifier with 741 – I (CB983E)
This circuit is from Radio Electronics. The magazine no more exists, but the circuit can be...
Gain 100 Operational Amplifier 741 (MSB018E)
The gain of the Operational Amplifier in the figure is given by the ratio between R1 and R2. In...