This is an original, heavy duty, old stock, never installed voltage inverter made so you can run 12-volt accessories like a radio in your 6-volt electrical system. A must for vintage cars that want to run a piece of modern electronics, or even power a 12V outlet for their phone charger. 

I am a 356 and Early 911S Registry member with an eBay Feedback Rating of 100%, so bid with confidence. Please ask any and all questions, they will be answered quickly and honestly. Please see our other auctions here for more hard to find Porsche parts, or shop the Unobtanium Store for even more Porsche parts and restoration supplies!