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Electromagnetism / 12AX7 / 12AU7 / 12AT7 / Transistor / Teledyne / Guitar amplifier / Mesa Boogie / HT / Vacuum tubes / Electrical engineering / Technology


The Fetron, a solid state vacuum tube replacement – page 1 These were JFET based devices made into little metal cans with pins poking out the bottom. They were replacements for tubes (Valves to us DownUnder) and as fa
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Document Date: 2013-09-09 23:53:41


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