3 General Electric GE Number / Type 41 #41 Vacuum Tubes Clear Bottle Lot Of Three Nonal 7716 NOS NIB This tube has black plates

This tube has black plates

Transconductance measured 2230 micromhos for Tube One (Missing centering pin

5 record cleaner and then played it on my He-Man Rig which consists of a Rega Planar Three with an Ortofon X5-MC cartridge on an RB-300 tone arm with a Cern phono preamp / preamp feeding two ArtSound 805 monoblocks

Tube One measured 69/72 while Tube Two measured 69/76

two are industrial versions

3 General Electric GE Number / Type 41 #41 Vacuum Tubes Clear Bottle Lot Of Three Nonal 7716 NOS NIB This tube has black platesThese three GE clear bottle type number 41 tubes tested as follows on our Paul Hart calibrated TV7 U: 42, 64 and 65 where minimum (65%) is 40 and 100% is 62. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT ETSY SISTER SITE "LOWTECHTWOO" AND OR CALL OR TEXT US AT 202 372 6931 IF YOU DO NOT SEE WHAT YOU NEED OR HAVE ANY QUESTIONS. 1. MOST FORMS OF SHIPPING EXCEPT MEDIA MAIL ARE AUTOMATICALLY INSURED