4 RCA Radiotron Number / Type 41 #41 Vacuum Tubes Lot Of Four October 7 2021 round top mica and rectangular

round top mica and rectangular bottom spacers

new in box Italian Sylvania 12SN7GTA dual triode was tested on our Hickok 600A for shorts

WE HAVE TENS OF THOUSANDS 0F VACUUM TUBES

All of these tubes have very-good-testing triodes and each has a strong-testing as well as a functioning diode

3 milliamps' plate current while Tube Two drew 19

4 RCA Radiotron Number / Type 41 #41 Vacuum Tubes Lot Of Four October 7 2021 round top mica and rectangularThese four RCA Radiotron type number 41 tubes tested as follows on our Paul Hart calibrated TV7 U: 41, 52, 53 and 54 where minimum (65%) is 40 and 100% is 62. 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 MAIL ARE AUTOMATICALLY INSURED