Connecting it backward for even a second will release the "magic smoke" from capacitors that are no longer manufactured. The Blaupunkt GmbH 815 is a beautiful relic. It sounds warm, looks incredible in a classic Porsche or Mercedes dashboard, and rewards patience. But treat it like a classic car: You wouldn't drive a 1978 911 without the owner's manual, so don't power up the 815 without one either.

Published by: Retro Tech Corner Reading Time: 4 minutes

Disclaimer: Blaupunkt GmbH is a registered trademark. This blog is for informational and restoration purposes only.