Selling my Accurate Instruments Model 257 tube tester. Very clean condition and works on every tube I've tried it on. I've never tried to use the cords with additional sockets/clips - probably for less common tubes. Has built in tube straighteners as well! A few dings on the case, but no corrosion on the metal parts. Comes with original manual and supplement sheet for testing additional tubes.
Pics show unit itself, additional cords/sockets, pilot light on, as well as testing of a 12AX7 tube showing the needle in the good region.
This is an emissions tester and wouldn't really be used for accurately matching tubes. This is more of a good/no good tester that also tests for shorts.
It's nice in that it's fairly compact and a good sanity check to make sure a tube is good and not shorted vs putting it into your gear untested and risking damage to your equipment. Size of the tester case itself is about 14" x 9" x 4" and it weighs about 6lbs.
Asking $70 plus actual shipping.
Pics show unit itself, additional cords/sockets, pilot light on, as well as testing of a 12AX7 tube showing the needle in the good region.
This is an emissions tester and wouldn't really be used for accurately matching tubes. This is more of a good/no good tester that also tests for shorts.
It's nice in that it's fairly compact and a good sanity check to make sure a tube is good and not shorted vs putting it into your gear untested and risking damage to your equipment. Size of the tester case itself is about 14" x 9" x 4" and it weighs about 6lbs.
Asking $70 plus actual shipping.
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