1951 (glass code) Sylvania 6L6G pair as shown.

Strong testing.

Date codes on glass: I1M I1M

Base codes: 226 226 

Each tube has a light rattle when shaken.

Test strong at 4200 51 ma & 4400 48 ma where 2400 gm is good at 250 volts 

in a Triplett 3444/Westmore 501 laboratory tube analyzer restored and upgraded by Paul Hart.

Please see our other items for more vintage tubes & audio.

Tubes guaranteed to test good or may be returned.

We cannot be responsible for what tubes test in another tester or in your gear at *** plate voltage.

We combine orders for shipping.

We don't change values for customs.  

Thank You.