7A16A with an unknown modification MOD515D
I came across this 7A16A on Ebay cheap so I bought it. Good entertainment!
It has a strange modification that I cannot identify. Looked everywhere I can think of but can't find any info on it...
It seems to work but the attenuator range is off and when you reposition the trace with it's control it also affects the signal level.
If I can't find any info on it I will most likely just remove the mod and return it to a normal 7A16A state.