Solar cell series connection (CB20479E)

In the figure we have the way to connect solar cells in series in order to increase their voltage. The cells must be of the same type.

Microphone Booster (CB923E)
This circuit was obtained in a 1980 edition of Elementary Electronics a magazine that no longer...
12,5W Amplifier with the741 (CB4023E)
This circuit is from the 1990 Motorola Data Databook. The circuit can be implemented with...
Varicap Frequency doubler with (CB4107E)
We find this circuit in American documentation from the 1980s. It consists of a frequency folder...