What exactly is it and what , if any, damage does it do to anything
adjascent/ same box.
Thurlby DSA524, digital scope adaptor From 1987 . Nickel dendrites like Tin
whiskers ?
Went to use it for the first time in 5 years and no response to any input,
was ok previous use. A vaguely staircase output on an analogue scope , but
thats about all. Composite and trigger out work as do some anunciator
readouts. So presumably ROM, RAM, PS, Clock are ok. So is it realistic to
suspect the A-D a Ferranti ZN449. ? One of those "better than nothing"
service manuals is out there but thats about all
This happens to be right next to one of those pcb soldered oval shape blue
cased nicads of that era, before EEPROMs came in.