4 RCA 6DW4 6DW4B Vacuum Tubes NOS NIB Lot Of Four 6LF6 Compactron Transconductance measured an underwhelming-but-well-balanced 40/42

Transconductance measured an underwhelming-but-well-balanced 40/42 where minimum (65%) is 50/50 and 100% is 77/77

mesh plate tubes both tested 32 on our Paul Hart-calibrated TV7/U where minimum (65%) is 25 and 100% is 38

It has excellent flashing

new in box Philco 7C5 tube tested to spec on our Paul Hart-calibrated TV7/U

9 for Tube Two

4 RCA 6DW4 6DW4B Vacuum Tubes NOS NIB Lot Of Four 6LF6 Compactron Transconductance measured an underwhelming-but-well-balanced 40/42This lot of four new old stock, new in box RCA 6DW4B 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