Zenith "Envoy" Transistor (Body) Hearing Aid
The Zenith "Envoy" transistor hearing aid was manufactured by the
Hearing Aid Division of the Zenith Radio Corp. in 1960. It was a 4-transistor aid.
A little unusual in shape, its gold metal case measured 2¼" x ¾" x
⅜"
thick.
The volume control is on the left side. A three position switch on
the right side is labeled "Off", "On" and "HI"
(high frequency emphasis).
|
 |
Click picture for larger view |
| |
 
|
| |
|
