4 European 6GJ7 / ECF801 Vacuum Tubes NOS NIB Lot Of Four July 20 2022 I have played them in

I have played them in my Bottlehead Crack headphone amplifier and they sounded outstanding

new in box matched pair of GE 6BL7GTA dual triodes was tested on our Paul Hart-calibrated TV7/U for shorts

on our Paul Hart-calibrated TV7/U where minimum (65%) is 40/40

8 milliamps while transconductance measured 2440 micromhos

This trio of RCA black plate 6CG7 / 6FQ7 dual triodes was tested on our Paul Hart-calibrated TV7/U for shorts

4 European 6GJ7 / ECF801 Vacuum Tubes NOS NIB Lot Of Four July 20 2022 I have played them inThis new old stock, new in box lot of four European made 6GJ7 ECF801 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