4 Philco Number Type 27 #27 Vacuum Tubes Stamped / Engraved Bases Lot Of Four Makin' Love but the time can be

but the time can be set

It measured 69/65 where minimum (65%) is 50/50 and 100% is 77/77

new in box RCA 4BZ6 / 4JH6 tubes tested to spec on our Paul Hart-calibrated TV7/U

milspec Sylvania GB-6X4WA was tested on our Paul Hart-calibrated TV7/U for shorts

They sound spacious with excellent dynamic range and frequency response on these challenging pieces -- and are dead quiet when the CD player is muted

4 Philco Number Type 27 #27 Vacuum Tubes Stamped / Engraved Bases Lot Of Four Makin' Love but the time can beThese four Philco engraved base number type 27 tubes were tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas; and they measured as follows: 40, 41, 42 and 44 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