RCA 1D5 1D5GP Vacuum Tube NOS NIB 7C5 Geprueft I have played it in

I have played it in my Schiit Vali 2 headphone amp and it sounds great despite the fact one section tests just above the cusp and the other tests over 20% stronger than the first

This lot of four US-made black glass as well as gray glass number / type 57 tubes was tested on our Paul Hart-calibrated TV7/U for shorts

Tube One measured 75/77 while Tube Two measured 79/76 where minimum (65%) is 50/50 and 100% is 77/77

Gain (Mu (µ): 16 / 16

RCA 1D5 1D5GP Vacuum Tube NOS NIB 7C5 Geprueft I have played it inThis new old stock, new in box RCA 1G5GP tube 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 UP TO $250 IN