2 x Telefunken 12AU7/ECC82 Tubes

Made in Western Germany

Diamond<> on the bottom

Matching codes (gh)

Tested on Enhanced Triplet E3444 Laboratory Tester

2230/2220 micromhos @ 9.8 & 9.8 mA
2220/2210 micromhos @ 9.6 & 9.6 mA
 
Industry Bogey(100%) = 2200/2200 micromhos @ 10.0/10.0 mA

Ask any questions before buying not after