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Miller 570-T (1942)
Miller 570-T
In 1937, William N. Weeden published an article in the February 1937 issue of Electronics magazine describing a radically different TRF tuner using band pass circuitry to accomplish Hi-Fidelity audio on the AM broadcast band. Later the J. W. Miller Company took Weedens circuit, made improvements on it, and marketed it as the Miller model 570 tuner and model 570A receiver. Miller marketed these units mainly for the use of professional broadcast monitoring by radio station engineers but it was also used by audiophile enthusiasts. I aquired this tuner from an ebay auction in February of 2006.

Tube Line Up:
6SK7...1st. R.F. Amplifier
6SK7...2nd. R. F. Amplifier
6SF7...Detector/AVC
6C5...1st. Audio
6C5...2nd. Audio
6E5...Tuning Indicator
Photo donated by Michael Feldt.
Visit Michael's web site at http://www.indianaradios.com/.


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