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RE: 12B4A

He might have used them also, later, as output tubes in his headphone amplifier. During one of my two visits to his shop/factory in NYC, he was building a headphone amplifier that he proudly showed off to me. It had smallish output tubes with no cap lead. I know someone who owns one, and we speculated whether his sample was the one I looked at in 1979 or thereabouts.


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  • RE: 12B4A - Lew 07:13:37 06/06/16 (0)

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