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AC/ME MAZDA TUNING INDICATOR or MAGIC EYE, 1936

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AC/ME MAZDA TUNING INDICATOR or MAGIC EYE, 1936

Mazda AC/ME early Tuning Indicator. The tuning indicator tube, or "Magic Eye" as it is was introduced by RCA, was used to display the optimum signal tuning point of a tuner/receiver, or the peak signal level of a pre-amplifier or tape recorder. This tube appeared soon after RCA's 6E5.

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A0690



2007 The Museum of Technology, The Great War and WWII
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