Quote:
Originally Posted by etype2
When the first generation Sony 12 inch Trinitrons were introduced in 1969, the model line up was KV 1200U, in basic metal cabinet, 1210U with walnut cabinet and the KV1220U with a fancier walnut cabinet , larger speaker and something called "Sky Tune".
Anybody know what "Sky Tune" did? What differentiated it from the other models? Is it simply AFT?
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The blue sky tuning indicator was just a fine tuning aid. IIRC, the blue color band on top of the screen got larger when the fine tuner was set properly.