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What are these??

Bozak crossovers? :dunno: They certainly look interesting. I would definitely want to hear what they sound like - somebody went through deliberate effort and expense to put those together.
 
Brings back memories of grade school with the AC vent covers on top. Very interesting speakers. If the price was right....I'd haul em home fir the coolness factor alone.
 
It's a prototype Dolby Atmos speaker - 50 years ahead of its time.

Almost definitely homebrew - as if that top grille wasn't enough, note the inconsistent screw spacing on the back cover. However, construction quality looks very good. Would be interesting to know what's inside.
 
I will pull the backs off this weekend gents!
And get photos up.
So whats up with Photobucket and Firefox I am bummed I have a bunch of photos on that site.
Have to use microsoft to open it now and that is Dinosaur slow..
 
similost said:
hhhhmm.. I didn't catch that.. those are newish looking drivers on the top... bummin...
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Yeah, the top drivers look to have ferrite magnets, but the vents have a 50s-60s vibe to them. Amazing crossovers! Definitely looking forward to the big reveal.
 
swechsler said:
note the inconsistent screw spacing on the back cover
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That was the first thing that spoke to me almost immediately followed by the cabinet work of a builder who would take the time and effort to dado slots for the "shelf" and then butt join the corners. Those details alone scream non-production, one-off build.
 
bowtie427ss said:
That was the first thing that spoke to me almost immediately followed by the cabinet work of a builder who would take the time and effort to dado slots for the "shelf" and then butt join the corners. Those details alone scream non-production, one-off build.
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Yes, and you did say that in your previous post, and I read it and promptly forgot. Mea culpa.
 
All that said, they are thoughtfully executed. The builder was definitely a detail oriented individual with some serious audio interest and influence. That all of the exposed wood is either painted or finished is a quality detail. That crossover that appears to be fully DIY with a direct western electric influence really piques the curiosity.
 
Ramseybella said:
So whats up with Photobucket and Firefox I am bummed I have a bunch of photos on that site.
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It could be an "ad-on" in firefox messing with 'bucket.

I have no issue with firefox/photobucket for years. But, i might have had to change a setting in one of my ad-ons to make it fly, i don;t recall for sure. I run adblock plus and ghostery FWIW.
 
bowtie427ss said:
Don't get me wrong. I'm not suggesting they ARE Western Electric so much as i am suggesting the designer/builder of these was heavily influenced by the early WE netwoks.
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It does seem to follow their layout convention which was different than similar era RCA. The cab style screams late 40s/early 50s too.

I'd bet the top woofer was originally an alnico that gave up the ghost much later and got replaced.
 
Few AKers are going to know that White Rock (OP's location) is basically an old bedroom community for Los Alamos National Laboratory. God only knows what kind of high quality electronics came out of their surplus property department since 1945. If I knew as a summer intern in the early 80s what I know now about electronics, I would have vacuumed up more stuff. My folks have an outlet strip on their garage workbench that came out of there, but that's about it.

Yep, the town was/is full of very smart scientists and engineers. It used to have the highest Ph.D ratio of anywhere in the USA.

I would not be surprised to find some ridiculous components in a homebuilt speaker just because they were available for free or pennies.
 
They're not, but the 'heater grille' things on the top look an awful lot like the 1950 RCA 9x571 radio:

9_x_571_ch_rc_1079_1214181.jpg


Could be from some other radio or actually a heater as suggested. But that may give a clue as to the age - of the components at least.
 
Djcoolray said:
I don't think he knows how to take them apart !
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Oh come on at least I was smart enough to bring them home and survive working at the lab for nine years..
I did real time X-Ray for three yeas you wold not believe the stuff I have seen thrown away.
I had two 55 gallon drums filled to the hilt with vacuum tubes still in boxes I examined once shipped to be buried forever.
:eek2::eek2:
 
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