Hitachi 12AU7 ECC82 Vacuum Tube Valve NOS NIB For Your Bottlehead Or Univalve Triple Tested 76 Seventysix Transconductance measured 49 for Tube

Transconductance measured 49 for Tube One and 52 for Tube Two where minimum (65%) is 36 and 100% is 55

2 hertz vibrasender / vibrasponder appears fresh and new

(New 6SN7s typically test within a standard deviation of 2600 micromhos

29/26 and 52/46

Hitachi 12AU7 ECC82 Vacuum Tube Valve NOS NIB For Your Bottlehead Or Univalve Triple Tested 76 Seventysix Transconductance measured 49 for TubeThis 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