3 RCA 5Z4 VT-74 CRC-5Z4 Vacuum Tubes Milspec Rectifier Lot Of Three 48 Fortyeight 47 and 54 where minimum

47 and 54 where minimum (65%) is 36 and 100% is 55

Transconductance measured 56 for Tube One and 57 for Tube Two where minimum (65%) is 40

Der Hirt Auf Dem Felsen

66 and 71 where minimum (65%) is 42

3 RCA 5Z4 VT-74 CRC-5Z4 Vacuum Tubes Milspec Rectifier Lot Of Three 48 Fortyeight 47 and 54 where minimumThese four milspec Sylvania 5Z4 rectifier tubes were tested on our Paul Hart calibrated TV7 U for shorts, gas and emissions. They tested 50 50, 51 51 and 51 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