Sylvania 12AU7 12AU7A NOS-Testing Copper Support Rods Triple 3 Mica For Your Bottlehead Univalve Chad Mitchell Trio There were no shorts or

There were no shorts or gas

This album is in very nice shape with a few pops and ticks

but not in guitar amps and other environments with loud noise and/or excessive vibration

Otherwise it is sold as-is with no returns

It sounds very good with an occasional pop and tick audible in the pianissimo passages

Sylvania 12AU7 12AU7A NOS-Testing Copper Support Rods Triple 3 Mica For Your Bottlehead Univalve Chad Mitchell Trio There were no shorts orThis Sylvania triple mica 12AU7A ECC82 dual triode was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 73 79 where new nominal is 50 50. This tube has two additional vertical support rods; an additional mica spacer for low microphonics; crenelated, round mica spacers and excellent flashing. I have played it in my Bottlehead Crack headphone amplifier and it sounds