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Rectilinear iii 1969


Jason1976
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I aquired these last week. Cabinets are pretty beat up. A couple tweeter dust caps are pushed in. But all the tweeters have continuity, and seem to work. 

The midranges work as well. 

Woofers are front mounted with cloth surrounds. 

Crossovers have a control for tweeter and midrange. 

There is a 90uf and a 2uf capacitor, and 2 inductors and 2 resistors. 

I can't find a schematic for it. I'd like one. I mean, I'd really like one. 

Anyone have one? They sound like they might be pretty special. Should I fix on them? Should I leave then alone? Should I put them down at the curb?

Please, any insight or experience is welcomed. Thanks!

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On 7/10/2021 at 9:19 PM, Jason1976 said:

Should I fix on them? Should I leave then alone? Should I put them down at the curb?

Welcome Jason

Are they the highboys or the lowboys? https://en.wikipedia.org/wiki/Rectilinear_Research_Corporation

Show us some pics! Either way, pretty special (although I have not heard them, I did have some III Minis that were very cool). Definitely keep if you have the room. Or put them on the curb in my neighborhood 😉

I would recommend replacing the capacitors. Mine had black caps with red ends--those are notorious for drifting. You can use NPE for the 90uF and film for the 2uF.

Kent

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