6 US-Made 6BN4 6BN4A Vacuum Tubes Valves NOS NIB Lot Of Six C-324 5PPC2 Transconductance measured 67 in Section

Transconductance measured 67 in Section One and 65 in Section Two for Tube One and 67/69 in Tube Two where minimum (65%) is 50/50 and 100% is 77/77

though is not recommended for this headphone amp which was designed for 12AU7s

I played it in my Bottlehead Crack and it sounds outstanding -- dead quiet when the CD player is paused with excellent frequency response

5 record cleaner and then played it on my Rega Planar 3

9 milliamps and transconductance was 2050 micromhos for Tube One

6 US-Made 6BN4 6BN4A Vacuum Tubes Valves NOS NIB Lot Of Six C-324 5PPC2 Transconductance measured 67 in SectionThese six new old stock, new in box US made 6BN4 6BN4A tubes tested to spec on our Paul Hart calibrated TV7 U. BECAUSE OF THE BIZARRE, INTRUSIVE AND DRACONIAN GERMAN PACKAGING REGULATIONS AND THE SEVERE FINES AND PRIVACY INTRUSIONS ASSOCIATED WITH IT WE NO LONGER SHIP TO GERMAN ADDRESSES. WE WILL HAPPILY SEND YOUR PACKAGE TO A NEIGHBORING COUNTRY OR MAKE SUITABLE ARRANGEMENTS. IN 2021 WE PURCHASED 150,000 VACUUM TUBES. IF IT'S NOT LISTED, WE PROBABLY