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White "fungus" around a ni-cad
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. |
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