Matched Pair Philco 24 Vacuum Tubes Valves Globe Balloon Mesh Plate

Matched Pair Philco 24 Vacuum Tubes Valves Globe Balloon Mesh PlateThese matched pair of Philco 24 globe, mesh plate tubes tested 33 and 34 on our Paul Hart calibrated TV7 U where minimum (65%) is 25 and 100% is 38. 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 UP TO

There were no shorts or gas and they tested as follows:

This Crosley By Ken-Rad number / type 80 rectifier tube was tested on our Paul Hart-calibrated TV7/U

new in box RCA 17AY3 / 17AY3A / 17BS3 / 17BS3A tubes tested to spec on our Paul Hart-calibrated TV7/U

They measured 23

This pressing has light surface noise audible in quiet passages and barely audible in voice-level passages

This RCA 807 output tube was tested with adapters on our Maxi-Matcher 2 for shorts

It has shiny black plates

Their filaments are spirally-wound -- hence the "S" in "ECC83S" -- for low noise operation

Tube One drew 16

It has dual D getters

3 milliamps' plate current while Tube Two drew 23

1 milliamps with a transconductance of 2260 micromhos while Tube Two measured 23