10 Philco Number / Type 41 #41 Vacuum Tubes Valves Engraved / Hot-Stamped Bases Lot Of Ten T17

10 Philco Number / Type 41 #41 Vacuum Tubes Valves Engraved / Hot-Stamped Bases Lot Of Ten T17These ten Philco engraved hot stamped base type number 41 tubes tested as follows on our Paul Hart calibrated TV7 U: 52, 54, 54, 54 54, 54, 55, 58, 58 and 62 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

WE MAY HAVE IT

new in box Raytheon 21LU8 tubes tested to spec on our Paul Hart-calibrated TV7/U

They have 2-30 188-5 and 3-52 188-5 date/provenance codes

This matched pair of Raytheon black glass 6V6GT output tubes was tested on our Maxi-Matcher 2 at real operating voltages of 400 volts on the plates and a bias of -36 volts for shorts

new in box US-made 6CY5 tubes tested to spec on our Paul Hart-calibrated TV7/U

This lot of six GE 6AC7s was tested on our Paul Hart-calibrated TV7/U for shorts

new in box Sylvania 6BX7GT tube tested to spec on our Paul Hart-calibrated TV7

nicely-matched pair of General Electric 12AU7/ECC82 dual triodes was tested on our Paul Hart-calibrated TV7/U for shorts

nostalgic-looking Super Silvertone 6P5G triode was tested on our Paul Hart-calibrated TV7/U for shorts

34/34 and 38/41 where minimum (65%) is 25/25 and 100% is 38/38

I would give it a 6 out of 10 because of this

new in box matched trio of GE-MANUFACTURED 12B4A tubes was tested on our Paul Hart-calibrated TV7/U for shorts