Vintage Pair of 12V6GT Tubes Chrome Tops Delco made by Sylvania Matched test NOS

Matched in every aspect. 

Codes on chromes top is L2A on each
Date Codes are 312 309
312 is the EIA code for Sylvania
309 is the 9th week of 1953

Each tested at 4150 uM micromhos on a calibrated Hickok 539B tube tester. The minimum acceptable value is 2600 uM micromhos.
A new 12V6GT will test at or above 4000 uM micromhos.

Please note test values may differ slightly from tester to tester and not responsible if your tester reads it differently and/or slightly different values than shown here. Values are added as a means to show the tubes indeed test strong/new, not an exact science. Your results can/may vary.