5 Raytheon Number / Type 41 #41 Vacuum Tubes Clear Bottle Lot Of Five EF95 Geprueft This lot of seven US-made

This lot of seven US-made 12B4A tubes were tested on our Paul Hart-calibrated TV7/U for shorts

round top mica and rectangular bottom spacers

(New 12AT7s / ECC81 typically test within 1

Etsy will indicate how many tubes are available in this Dutch auction

This new old stock-testing matched pair of GE 12B4A tubes was tested on our Paul Hart-calibrated TV7/U for shorts

5 Raytheon Number / Type 41 #41 Vacuum Tubes Clear Bottle Lot Of Five EF95 Geprueft This lot of seven US-madeThese five Raytheon clear bottle type number 41 tubes tested as follows on our Paul Hart calibrated TV7 U: 56, 59, 59, 60 and 63 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