Voice Activated Switch (CB5982E)

This 80's documentation circuit includes an amplifier of the era. Used integrated circuits are uncommon today but can be used equivalents.

| Clique na imagem para ampliar |

Gradual Touch Dimmer (CB19144E)
This circuit is based on an old Siemens integrated that can now be found very easily. It allows the...
Photometer (CB19147E)
This sophisticated photometer that has a light comparator with LED indicator came out in an...
Ammeter (CB19741E)
The integrated circuit of this instrument is not common today. Equivalent operational can be...