Re: LM380 cooling.
It's good to know my idea isn't crazy! I feel some research and experimentation coming on.
Current idea: take a square of this copper I've got, slice it diagonally to give 2 pyramids, then slice the 'tops' off the pyramids to produce a straight bit to solder to the central 3 pins on each side. I'm thinking of drilling a hole through the centre of each pyramid too, so I can use a 6BA nut/bolt/spacer-tube to join them and so give added support.
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