4 Sylvania 6U7 6U7G Vacuum Tubes Lot Of Four 6AV5 Octal They are dead quiet when

They are dead quiet when the SACD player is muted but are not recommended for this amp -- which was designed for 6SN7s -- as they not only break up early

This lot of six GE 6AC7s was tested on our Paul Hart-calibrated TV7/U for shorts

copper support rods and good flashing

new in box GE 6AS8 tubes tested to spec on our Paul Hart-calibrated TV7/U

(New 12AU7s typically test within one standard deviation of 2200 micromhos

4 Sylvania 6U7 6U7G Vacuum Tubes Lot Of Four 6AV5 Octal They are dead quiet whenThese four Sylvania MANUFACTURED 6U7G tubes were tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. They tested (from left to right) as follows: 44, 52, 55 and 55 where minimum (65%) is 40. BECAUSE OF THE BIZARRE, INTRUSIVE, CRUEL AND DRACONIAN GERMAN PACKAGING REGULATIONS AND THE SEVERE FINES AND PRIVACY INTRUSIONS ASSOCIATED WITH THEM WE NO LONGER SHIP TO GERMAN ADDRESSES. WE WILL HAPPILY SEND YOUR PACKAGE TO A