Westinghouse 25AV5 25AV5GT Vacuum Tube NOS NIB Atmospheric Horel 4 dB (-92 dB is

4 dB (-92 dB is the Maxi-Matcher's noise floor)

This is a fun LP

There are also two that are used that test fine

Transconductance measures the efficiency of a tube and also serves as a tube life measurement proxy as tube efficiency diminishes with age

Westinghouse 25AV5 25AV5GT Vacuum Tube NOS NIB Atmospheric Horel 4 dB (-92 dB isThis Westinghouse 25AV5GT tube and another just like it tested to spec on our Paul Hart calibrated TV7 U. Etsy will indicate how many tubes are available in this Dutch auction. 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