COMPLETE RADIO SET PUT IN HEADPHONES (Jul, 1933)
Filed under: Radio — @ 9:25 am
Source: Popular Science ( More articles from this issue )
Issue: Jul, 1933
| Buy on Ebay
Source: Popular Science ( More articles from this issue )
Issue: Jul, 1933
| Buy on Ebay
COMPLETE RADIO SET PUT IN HEADPHONES
Inventive ingenuity has succeeded recently in building a complete radio set into a pair of headphones. No batteries’ are required, since the set uses a crystal detector, which is adjusted by manipulating a small knob on one of the receivers, as shown above. To tune in any station, the user has merely to turn a larger knob at the back of the same receiver, operating a diminutive tuning condenser. The set will operate successfully wherever the cords of the set may be plugged into a convenient aerial and necessary ground connections are possible.
This would be a very cool design for a steampunk-style cell phone, if it were built just as a handset.
Comment by PG — February 12, 2008 @ 3:24 pm