Solar cell bank (CB20480E)

In the figure we have the way to connect 6 solar cells in order to obtain higher voltage and higher current. Cells must be the same.

Electroscope (CB4341E)
This simple electroscope with bipolar transistors is not the most sensitive, but can detect static...
Telegraphy Practice Oscillator (CB4200E)
This is one of many Morse code audio oscillators that can be found in this section. The circuit...
AND Gate Using NOR (CB198E)
Three of the four gates found in a 4001 can be used to perform as an AND gate. This improvisation...