| it is a portable device with a mass of about 1.35Kg,allowing to visualize in brief form any magnetic field.
| it is a portable device with a mass of about 1.35Kg,allowing to visualize in brief form any magnetic field.
| It's an ersatz of Enigma Machine.
| Densitometer for silver photo.
| Improve posemeter for argentic medium-format camera.
| When silicon and music come to the rescue of plants.
| It's a safelight for argentic black and white lab.
