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Post by tacoboy on Jan 15, 2012 20:00:21 GMT
Indeed is now selling their G3 tube amps with U.S.A. made :)tubes from the 1960s. The tubes are marked 5814 & 5963. Anyone know anything about these tubes?
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Deleted
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Post by Deleted on Jan 15, 2012 20:53:14 GMT
Similar to 12AU7 = ECC82
found this:
5814: This is a military spec tube. Sometimes the vintage GE versions may be labelled JG-12AU7WA in white and have 5814 etched into the glass. These are all low microphonic thanks to their rigid mica supports. Older versions have a third mica spacer near the top. These "triple mica" versions are in great demand today. The broadcast versions of this tube are the GE 5-star, and the RCA Command series. These vintage tubes have just started to become a hot item, as NOS stocks of the West Europe types become harder to find. These tubes can withstand many on-off cycles and mechanical shock without a problem.
5963: This is a nice industrial type which is nearly identical to the standard 12AU7. RCA made a nice blackplate version of this tube, Sylvania has a gold pin version, and GE has it in their 5-star broadcast line. The plate voltage rating is a little lower than for a 12AU7, but for most applications, it will work fine. It has a rugged cathode and should be long lived, similar to the 5814. Watch this tube, as it is plentiful now and prices are low. As audiophiles discover it, the rush will be on!
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