4 RCA Cunningham Number Type 27 #27 Vacuum Tubes Lot Of Four Sylvania gebraucht It is probably a Mullard

It is probably a Mullard

This Sylvania number 76 tube tested to spec on our Paul Hart-calibrated TV7/U

but this does not affect performance at sound pressure levels far above normal playback even though the speakers are on the same equipment rack

This lot of six US-made mesh plate

copper support rods

4 RCA Cunningham Number Type 27 #27 Vacuum Tubes Lot Of Four Sylvania gebraucht It is probably a MullardThese four RCA and Cunningham number type 27 tubes tested as low goodand good on our Paul Hart calibrated TV7 U. Transconductance readings are 25, 27, 32 and 36 where minimum (65%) is 25. 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