5 US-Made 12AQ5 Vacuum Tubes Valves Lot Of Five 25Z5 NOS NIB 6SL7s can sub for 6SN7s

6SL7s can sub for 6SN7s in some amps but I do not recommend experimenting as they have very-different bias voltages

I have played them in my Radio Craftsmen RC-2 monoblocks and they are dead quiet when the CD player is paused and have excellent frequency response

new in box 14BR11 tubes tested to spec on our Paul Hart-calibrated TV7/U

This Tung-Sol 13DE7 tested to spec on our Paul Hart-calibrated TV7/U

red tip (low noise) 6CG7 / 6FQ7 dual triode was tested on our Paul Hart-calibrated TV7/U for shorts

5 US-Made 12AQ5 Vacuum Tubes Valves Lot Of Five 25Z5 NOS NIB 6SL7s can sub for 6SN7sThese five US made GE 12AQ5s were tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas and they measured as follows: 54, 64, 64 and 68 where minimum (65%) is 46. 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