3B Voice Scrambler
Model: 3B
Type: Speech Scrambler/ Privacy Unit
Circa: 1941
Tube lineup: 2 x WE310A, 1 x WE311A and 1 x WE274A
Manufacturer: Western Electric
Dimensions 22" x 21 1/2" x 14"  Net Weight 109.0 lbs/49.5kg.

 
 
03_01 voice.jpg
3B front view and sitting  atop a blue dolly.  The lid is at the left side. Click on image to enlarge. 
/03b 02 voice.jpg
Rear view of 3B unit. Click on image to enlarge.
0b3 03 voice.jpg
Stamped identifier on chassis component.
/03b 04 voice.jpg
Cabinet identifier
All photos in this table via E-bay.

 
Contributor:

1) https://www.ebay.com/itm/197867165597

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Nov 22/25