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Member Since 02 Sep 2007
Offline Last Active Today, 04:01 AM

Posts I've Made

In Topic: "Rare" KLH speaker: Model 708

Today, 03:53 AM

It's amazing to me how much mileage KLH got out of the lowly 4" speaker. AR didn't even bother.


Those grille bases look like punched metal, and from the ad, I think they'd look pretty good.


I've seen this speaker auctioned a time or two, but not much else. Nice work, as usual.

In Topic: AR-2A Info

Yesterday, 05:44 AM


Just to clarify a few points:


-No amount of vinegar will take care of most of the corroded AR pots out there. If caked, green corrosion has developed, there will always be pits under it. Sandpaper or a Dremel tool may be of help in these cases. If the corrosion is too bad I toss it.




Perhaps these were in the minority. I did use a small wire hand brush to help finish the cleaning, after an overnight soak in the vinegar. These particular pots hadn't lost much material, except for the rivet holding the round disc on this one.

In Topic: Another Curbside Rescue

19 July 2014 - 03:24 AM

Great catch!


I can't imagine your original woofer is beyond repair. But it might not be cheaper than a used replacement.

In Topic: AR-2A Info

18 July 2014 - 04:54 AM

The pots should measure about 16 ohms, end to end. Vinegar is great for cleaning corrosion, if you haven't tried it before.


Various data points here.


Here's a schematic. Check your own speakers for variances.



In Topic: AR-2a problem

11 July 2014 - 05:16 PM

All I had to do was complain about it, and suddenly things are working.

I don't know what changed. They weren't working yesterday.


Thank you, Carl.