7 RCA 13GF7 13GF7A Vacuum Tubes NOS NIB Lot Of Seven 12SC7 Octal copiously-illustrated book is in excellent

copiously-illustrated book is in excellent condition

I have played them in my Radio Craftsmen RC-2 monoblocks (with adapters

It measured an almost-perfectly-balanced 59/57 where minimum (65%) is 40/40 and 100% is 62/62

Etsy will indicate how many are available in this Dutch Auction

I have listened to all four LPs

7 RCA 13GF7 13GF7A Vacuum Tubes NOS NIB Lot Of Seven 12SC7 Octal copiously-illustrated book is in excellentThese seven new old stock, new in box RCA 13GF7 13GF7A 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