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The Echophone is portable, compact but lots of volume. Or buy a desktop version. Published in the March, 1925 issue of RADIO NEWS.
Source: Magazine collector Steve Davis
Restoration by: magscanner
- Created on
- Monday 20 December 2010
- Posted on
- Monday 20 December 2010
- Tags
- carry, convenience, light, movable
- Visits
- 1623