patters-ra: 312 - Tube 6K4
ID: 295773
This article refers to the model: 312 var. 1 (Patterson Radio Co. / Electric Co.; Los Angeles, CA)
? patters-ra: 312 - Tube 6K4
21.Aug.12 19:32
37

Please check the tube line up of this model. The US 6K4 linked to the model was a subminiature triode registered in the late 1945.
Many thanks,
Emilio
To thank the Author because you find the post helpful or well done.
Problem solved
22.Aug.12 20:21
37 from 2222

We can remove the question mark from this thread. The solution was found by Achim Korn. The mistery tube seems to be a 6K6, also used in other models of the same manufacturer.
Many thanks to all.
Emilio
To thank the Author because you find the post helpful or well done.