On 3/14/2016 5:33 PM, Carl Zwanzig wrote:

Does anyone (else) remember the P connector? It was a predecessor to the
XL/XLR and was about an inch across with three pins on a right, not
equilateral, triangle. In the '70s I saw some in a 1930's school theater
(Pasadena CA) and a couple of years later in another old theater. Who
made them? When? Any photos? There is approximately zero info about them
in google, at least that I've been able to find.

Thanks,

z!


Are you thinking of the Amphenol 91-MC3M/91-MC3F connectors? These
predated the XLR connectors. There are adapters and adapter cables
available at pretty high prices.