Click on the picture to enlarge

Builder V.A.A.M.
Model Galena receiver
Year 1930
Bands OM
Tubes None
Tuning Simply LC input circuit
Notes Works only with the earphone
Power None needed !
Size 10x17x12

Do you want try to build a galena radio? Click  HERE

Note  This is a typical galena receiver, working without power supply. The radio stations was tuned with the external coil and the variable capacitor, after delevloped from the galena diode and sent directly to the high impedance headphone. This kind of receiver required a great antenna and ground wires..

Clicca sulla immagine per ingrandirla 
Detailed viev of the galena detector


1996-2018 © Copyright -
Clicca qui per la versione Italiana Versione Italiana English Version