gevonden !!

RCA Wire Recorder, 1930's-1940's
This is a rare RCA Wire Recorder from the 1930's -early 1940s in a black bakelite case. The item to the right is the wire cartridge that would insert into the top slot. Like most wire recorders from this time period, you had to purchase the wire recording cartridges from the company that made the recorder. Nothing was standardized. This was a tube recorder. Note the knobs on the front of the recorder and the chrome grill. As you can see from the photo, this wire recorder is in like new condition. When this wire recorder first came out, it was hailed as a "portable wire machine" one could, ah....carry around if you didn't have a bad back. Note the handle on the top that pops up. Instead of reels of wire, this machine was easier and quicker to use since all you had to do was side the wire cartridge in it.

http://www.pimall.com/nais/pivintage/rcawirerecorder.html