Hitachi 12AU7 ECC82 Vacuum Tube NOS NIB For Your Bottlehead Or Univalve Triple Tested 1st Quarter BW02 plate current and transconductance

plate current and transconductance

where minimum (65%) is 36 and 100% is 56

perfectly-matched pair of Ken-Rad 6SJ7s was tested on our Paul Hart-calibrated TV7/U for shorts

These tubes dissipate an additional three watts -- or so -- more than EL34s with standard skinny bottles

but is fine at all listening levels

Hitachi 12AU7 ECC82 Vacuum Tube NOS NIB For Your Bottlehead Or Univalve Triple Tested 1st Quarter BW02 plate current and transconductanceThis new old stock, new in box Hitachi 12AU7 ECC82 dual triode was tested on both our Paul Hart calibrated TV7 U as well as our Maxi Matcher Preamp Tube Tester. On the Maxi Matcher, it tested as follows: Dynamic Range: 77. 6 dB 82. 3 dB ( 92 dB is the Maxi Matcher's noise floor) Transconductance: 1410 1411 (New is approximately 1450) Gain (Mu (): 14. 6 15. 7 (New is approximately 17) On the TV7 U, it tested as follows: 79 77 where minimum (65%) is 50