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Old 02-14-2016, 11:17 AM
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rca2000 rca2000 is offline
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Location: cincinnati,ohio
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Quote:
Originally Posted by zeno View Post
Almost all if not all early sets that ran on 12 VDC used
a power transformer. Latter sets sometimes used a multivibrator
& higher voltages to run the set. RCA comes to mind. Its
all about economics.

73 Zeno
And Zenith continued to use cold chassis for their BW 13" sets till 1978..12KB1 chassis. Also in that period their lager BW sets----with the 19GB1 chassis--it used a VRT for power even. As did the "flat chassis BW 19FB12 chassis that came before it , a couple of us here have.
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