16 Sylvania 6CB6 6CB6A 6CF6 Vacuum Tubes NOS NIB Lot Of Sixteen 1X2 NOS NIB

16 Sylvania 6CB6 6CB6A 6CF6 Vacuum Tubes NOS NIB Lot Of Sixteen 1X2 NOS NIBThese sixteen Sylvania 6CB6A 6CF6 tubes tested to spec on our Paul Hart calibrated TV7 U. 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 UP TO $100. ETSY PURCHASE PROTECTION COVERS ITEMS UP TO $250 IN

an engraved base

I have listened to it in my Bottlehead Crack headphone amplifier and it sounded great

These tubes have gray coated bottles

new in box Amperex 38HE7 tubes tested to spec on our Paul Hart-calibrated TV7/U

new in box Sylvania 6BQ6 tubes tested to spec on our Paul Hart-calibrated TV7/U

a silkscreened base

new in box RCA 12AV7 tubes tested to spec on our Paul Hart-calibrated TV7/U

PLEASE INSURE THEM

This lot of four RCA black plate

This lot of two RCA Cunningham Radiotron 2B7 tubes was tested on our Paul Hart-calibrated TV7/U for shorts

on our Paul Hart-calibrated TV7/U where minimum (65%) is 31 and 100% is 48

These four Philco clear bottle type / number 41 tubes tested as follows on our Paul Hart-calibrated TV7/U: