E188CC/7308/6922


Hi,

Trying to identify a tube. Its only markings is E188cc in white label which ressemble Siemens.No branding, nothing else on the picture but grey pins instead of gold pins which is almost universal in this type. Supposedly used in the Navy (but which one). Anybody has a knowledge of this ? Could not identify from Tubemonger or Brent Jesse.
andr
Could be a rebranded 6dj8. I think I remember reading that if it doesn't have gold pins it is not a E188CC. Whats the getter like, any ridges on top of the glass?
Thanks for Tube world. In deed, but could not find grey pins in 7308 nor e188CC. But......after my intial post, did some research and found a comment on same tube saying they are Amperex from the 60's made for military.