4 RCA 6DW4 6DW4B Vacuum Tubes NOS NIB Lot Of Four 6LF6 Compactron but also because if it

but also because if it is a brand other than RCA

3 milliamps with a transconductance of 2700 micromhos while Tube Two measured 22

Two are labeled "Philco

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

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

4 RCA 6DW4 6DW4B Vacuum Tubes NOS NIB Lot Of Four 6LF6 Compactron but also because if itThis 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