Solar power source (CB20481E)

In the figure we have a solar power source for experiments with this type of energy. The cells must be of the same type.

Electroscope or Proximity Alarm (CB16703E)
This sensitive electrostatic charge detector uses only common discrete components. The circuit can be...
Remote Volume Control (1) (CB12469E)
The intensity of an audio signal can be controlled by a remote potentiometer on a DC circuit,...
Temperature Alarm (CB15783E)
The circuit shown in figure 6 provides a TTL logic signal at its output, when the LM3911...