1928/29 Crosley Model 706 "Showbox"
Photo by Nancy Sewell
The model 706 Showbox was an AC powered, single band broadcast receiver. It had a pin driven speaker, and the chassis contained eight tubes. The tubes used in this set and their purpose are: CX-326 First R.F. CX-326 Second R.F. CX-326 Third R.F. CX-327 Detector CX-326 First A.F. CX-326 Second A.F. CX-326 Second A.F. CX-380 Rectifier
The battery powered verison of this set was the model 705 Showbox. The outter appearance of the two sets was exactly the same.
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