[Collins] 75S-3 Tubes

[Mike, K8LH]

First, thank you Gentlemen all, for your help getting me started with
this S-Line restoration...  I have all manuals except for the 75S-3/A,
but, I have a schematic...  Now I can start testing caps, resistors,
tubes, voltages, etc...

Question -- my 75S-3 has 6U8A tubes but they're not on the 75S-3
schematic...  Are the 6U8A tubes in my 75S-3 compatible with the 6EA8
tubes on the schematic???

Thanks, Mike- K8LH (Westland, MI)...