Not an AR-3 crossover but right part number


I came across 10 of these crossovers.  They say they are Acoustic Research 810150  which I think was on the AR-3A but the capacitor values are incorrect compared to anything I can find on the internet. It has a 100 uF cap, a 24 uF and a 5 uF. 

I was thinking of using these in a couple of other speakers I have kicking around. Anyone have an idea of what they were meant for and what the pinout I should expect is ?  Am I correct in assuming I should put a 16 ohm pot acoss the terminas labeled VR12 / VR13 and VR22 / VR23 ?  

Kind of new to this rebuilding and wondering if I should spend time using these or think about making crossovers from scratch ?

 

128x128haritec

Those are crossovers for the Acoustic Research SRT380. Sold only in Sears and at military PXs. 550 and 4.5K, at least in that application.

Note that crossover uses an electrolytic capacitor on the high pass, possibly bypassed, hard for my old eyes to see. 5 mic film caps are cheap and you have the real estate for them. IMHO, whenever possible, upgrade to film, YMMV.