2 RCA 6GY5 Vacuum Tubes Valves NOS NIB Lot Of Two The Lost Years

2 RCA 6GY5 Vacuum Tubes Valves NOS NIB Lot Of Two The Lost YearsThis lot of two new old stock, new in box RCA 6GY5s 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

new in box Sylvania-MANUFACTURED

This matched pair of National Union glass bottle 6J7GT tubes was tested on our Paul Hart-calibrated TV7/U for shorts

Transconductance measured 49/50 for Tube One and 50/50 for Tube Two (RCA-LABELED)

flashing is excellent and the bases appear to be made of micanol

This Zenith 5Y4G rectifier tube tested 57/54 where minimum (65%) is 40/40 and 100% is 62/62

emissions and transconductance

This matched pair of Hytron black glass 6V6GT output tubes was tested on our Maxi-Matcher 2 with 400 volts on the plates and a bias of -36 volts for shorts

These US-made 12SF7 tubes were tested on our Paul Hart-calibrated TV7 for shorts

They measured 30/34 and 38/37 where minimum (65%) is 25/25 and 100% is 38/38

This matched pair of Cunningham 6SJ7 tubes was tested on our on our Paul Hart-calibrated TV7/U for shorts

This has been the best-sounding LP I played today on Thanksgiving

This paperback book is in excellent condition