Description: Up for sale, a used early Mullard 12AX7 17mm long plate tube, believed to be manufactured in 1957. This tube tests sort of "fair" in my estimation. Most testers use 60-65% emission as the good/fail line and this one is sort of limping across the finish line here on one side. The other side tests a bit stronger. I expect it will keep producing good sound for a while longer so enjoy while you can. Please see pics for actual test values. Sorry, no box. This will ship in bubble wrap. US bidders/buyers only please. This will ship tracked and insured. General notes regarding testing: tubes are tested using fixed bias which produces the most conservative results. The tester is fed 116.4v pure sine wave battery power which allows for extremely consistent test results. My wall voltage measures all over the map and consistency suffers a bit so I've unplugged. My test rig is pictured for reference.
Price: 135 USD
Location: Georgetown, Texas
End Time: 2024-12-13T23:06:20.000Z
Shipping Cost: 5 USD
Product Images
Item Specifics
All returns accepted: ReturnsNotAccepted
Brand: Mullard
Type: Vacuum Tube
Model: 12AX7 ecc83
Country of Manufacture: United Kingdom
MPN: 12ax7
