4 Sylvania 5Z4 Vacuum Tubes Rectifier Lot Of Four Columbia Harmony This matched pair of RCA

This matched pair of RCA black plate 5763 tubes were tested on our Paul Hart-calibrated TV7/U for shorts

This offering is for 3 subminiature X-ray suppression shields suitable for 6AU6-size tubes

they can put out as much as 2A3s and fell into disfavor because of socket supply issues

tall bottles

4 Sylvania 5Z4 Vacuum Tubes Rectifier Lot Of Four Columbia Harmony This matched pair of RCAThese four Sylvania 5Z4 rectifier tubes were tested on our Paul Hart calibrated TV7 U for shorts, gas and emissions. They tested 46 52, 49 47, 51 51 and 52 52 respectively, where minimum (65%) is 40 40. 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