This is a Roland TR-808 backplate image I have reworked.
The purpose is to remind me what connections go where.
It has been reversed so it can sit behind the TR-808 facing the player and be read correctly.

Feel free to download and print out it for yourself.
The linked image should be big enough to resize to full TR-808 width.

I’m thinking of laser etching this on wood or metal so its a bit more robust than a print out.