9V Battery Adapter
thingiverse
I needed a quick 9V battery adapter for my Instrument. Additional 7809 regulator, heat-sink and 12V wall-wart .....works a peach! I could have refined it more, but like I said, quick and dirty solution! One thought is to pot it in silicone sealant (just fill the cavity with RTV) and I may just do that.
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