[quote=JefCon;21720196]Probably not. But I'll venture a guess that its the oldest one in this thread (so far).
This is one my dad built in college (61-65). It was powered by a 12 watt (tube) integrated amp that he made from a kit he ordered. The only application I ever saw it used in was with a stereo record player that had its own detachable speakers. There was a shielded cable coming through a vent from inside the record player (probably patched between the preamp and power section of the record player). The cable went to a box with three, three position switches that I'm guessing was a crossover. The output of that box went to one of the inputs on the kit amp. When I got the speaker all the other stuff was long gone (destroyed in a flood).
You can see from the first picture of the front and the picture of the speaker from the rear that the original speaker hole was much larger (12"). I can only guess that he either was never able to source a 12" speaker or he blew it and couldn't source a replacement. I am pretty confident that the speaker that is in there now, and the panel its mounted on, came from an organ that he disassembled for tubes and parts.
I never knew my dad so I am taking wild stabs in the dark to the details above. I'd love to give it 2nd life somehow, in his honor, but there is no way my wife is going to allow this in the living room. I tried it as a guitar cabinet with a Celestion G12 but it was way too boomy even with the port shut. Someday~~~~
That is a terrific find!
The first commercial subwoofer for home and studio use was the Servo Static 1 by New Technologies Enterprises. Designed by Arnie Nudell and Cary Christie in Nudell's garage in 1966. The $1,800 sub cost 40% more than any other complete speaker system listed at Stereo Review and was released for sale under the Infinity name brand. It used a customized Cerwin-Vega 18 inch driver with a servo driven amp. Maybe later I will add a photo.
Just to be clear, I was in no position to spend $1,800 when I was in highschool...