Re: Grey insulating cardboard
The thin grey cardboard is called FISH PAPER.
It is used on a lot of stereo high power amplifiers, where the two amplifier channel boards have to be insulated from the metal cabinet.
If you have a local Pro Audio power amp repair company, they may well have some.
I had 20 sheets in stock in my department, before I was made redundant. I doubt it is still there, the new management who took over sent many thousands of pounds worth of parts to the tip.
Kevin
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