National / 6SQ7GT-NATIONAL NAN KING

6SQ7GT-NATIONAL NAN KING Click on image(s) above to view larger
£18.50

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6SQ7GT National Nan King is a nice quality valve found in early Gibson GA customs amps and many early American Audio amplifiers. The glass envelope offer reduced microphonics over the metal can version of this valve.

The 6SQ7GT is a double diode triode sharing a common cathode. The triode is seen at the top with the carbonised anode, the double diodes are seen as the anodes between the triode and the pinch. The screening box is connected to the cathode and the diode anodes are the vertical rods placed either side of the cathode within the screen.

These valves date from the mid-1950s and come in the original boxes


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