5 Sylvania 14X7 Vacuum Tubes NOS NIB Lot Of Five

5 Sylvania 14X7 Vacuum Tubes NOS NIB Lot Of FiveThis lot of five new old stock, new in box Sylvania MANUFACTURED 14X7 tubes tested to spec on our Paul Hart calibrated TV7 U. Most loktals were made by Sylvania and these Philco BRANDED 14X7s are not an exception 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

These tubes have tall bottles

1 milliamps while it measured 2380 micromhos where new US-made 6L6s typically test with plate current from the low 20s to mid 30s and with transconductance from 2200 micromhos or so

new in box RCA 25Z5 tube tested to spec on our Paul Hart-calibrated Hickok TV7/U

These 6K6s are the best-looking

IN WELL OVER 8000 SALES

This new old stock-testing matched pair of GE black plate 6CL6 tubes were tested on our Paul Hart-calibrated TV7/7 for shorts

This new old stock-testing matched pair of Ken-Rad black and silver bottle type / number 38 tubes tested 58 and 62 on our Paul Hart-calibrated TV7/U where minimum (65%) is 26 and 100% is 40

Transconductance measured 52 for Tube One and 56 for Tube Two where minimum (65%) is 30 and 100% is 46

This RCA 6BQ6 / 6BQ6GTB / 6CU6 tube tested to spec on our Paul Hart-calibrated TV7/U

Tube One measured 50/52 while Tube Two measured 52/52 where minimum (65%) is 38/38 and 100% is 58/58

new in box GE 6MD8 tubes tested to spec on our Paul Hart-calibrated TV7/U

This new old stock-testing matched pair of National Union-MANUFATURED Type 37 triodes was tested on our Paul Hart-calibrated TV7 For shorts