Matched Pair Tung-Sol 6K6 6K6GT Vacuum Tubes Black Glass Philco 1D8 1D8GT new in box GE 6BD6

new in box GE 6BD6 tubes tested to spec on our Paul Hart-calibrated TV7/U

a lyre getter black plates and excellent flashing

5 record cleaner and then played it on our Rega Planar Three

This beautiful

These four Philco clear bottle type / number 41 tubes tested as follows on our Paul Hart-calibrated TV7/U:

Matched Pair Tung-Sol 6K6 6K6GT Vacuum Tubes Black Glass Philco 1D8 1D8GT new in box GE 6BD6This matched pair of Tung Sol black glass 6K6GT tubes was tested on our Maxi Matcher tube tester with 325 volts on the plates and a bias of 36 volts. Tube One drew 26. 6 milliamps' plate current while Tube Two drew 27. 6. Transconductance was 1900 for Tube One and 1800 for Tube Two where new nominal is within one standard deviation of 1900. As I write, I am playing them in my Mini Mite 2013 and they sound great. WE HAVE SCORES OF THOUSANDS OF VACUUM