1 x ECC88 Siemans? 6DJ8/6922 Tube
Made in German for Hewlett Packard
Tested on Enhanced Triplett E3444 Laboratory Tester - by Paul Hart of Va.
11,450/11,400 micromhos @ 11.0 & 10.6 mA
Industry Bogey(100%) = 12,500 micromhos @ 15 mA
Ask any questions before buying not after