ECC82 normal vs ECC82 long plate
Have any difference with one to another beyond the plate? Because I bought a ECC82 tube from same seller that, I already bought the same tube a few months ago, and on this time, he shipped a ECC82 with a long black plate.
Well I presume that is ECC82, because seems that the number on tube was erased.
I put the tube on a preamp that I have here, and I measured the cathode and anode voltages, and I got this:
Tube Typical ECC82 This tube
Anode 91.4V 115V
Cathode 2.4V 1.35V
Maybe is just part of the characteristics from the tube, but perhaps the seller shipped a wrong tube.
Has he got any more ??
ECC82 12AU7 MULLARD BOX ANODE VALVE TUBE 1PC J | eBay
The Mullard ECC82 had larger anodes than the 12AU7 type valves. Possibly more current drive maybe but different characteristics to the copies, not that there are any issues with the copies.
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