Sunday, May 3, 2009
Blaupunkt speaker jacks
A number of people have asked where they can find Blaupunkt speaker connectors recently. While Blaupunkt's own dual plugs are hard to find, the good news is that the individual connectors themselves are a standard item that is available from any electronics supply source. Known as the "banana plug" or "banana connector" (in German, bananenstecker), this standard audio jack system was designed by Richard Hirschmann in 1924. He was the founder of the Hirschmann company that has for many years been a primary producer of audio antennas for VWs and other cars.
Blaupunkt's version of the the banana connector was a closely spaced dual plug (12mm or 15/32 in. on center), as seen here on an old Blaupunkt speaker I salvaged from a junkyard Squareback.
Modern dual banana plugs are available, but they all seem to be more widely spaced than the Blaupunkt plugs. The 12mm spacing may have been Blaupunkt's proprietary version of the connector. Single banana plugs work just as well as long as their insulators are small enough in diameter to fit within the Blaupunkt jacks' 12mm spacing.
Banana plugs: you can't enjoy Suprakustik® sound without them.