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Anyone have experiance with KLH-9 power supplies?

I have two pairs of KLH-9s, one functional, the other mostly for parts. Recently the signal to the tweeter on one of the "good" ones has dropped out. This also happened a few years ago, and it turned out to be connections within the potted PS box... melting out the wax & repairing it was a pain! I'd like suggestions &/or schematics on what I could repair, or replace the original boxes with. In effect, I have a glut of drivers (enough to make "double 9s")but controllers are my problem.

On a related note, does anyone here work on old 'stats enough to be interested in a "collection" of CLS, Quad 63, & KLH 9s in various disrepair? ...perhaps a trade of a bunch of old bits (including a pair of fully functional 63s)for one pair refurbished?
frommerstop

Showing 1 response by nsgarch

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nsgarch
2,524 posts
 
It's not THAT hard to remove the wax. I did it for a friend who has a pair of 9's. The reason it's not THAT hard, as I recall, is that you don't have to remove ALL the wax. Just enough to get to the components.

We tipped the unit on its side over something to collect the wax (like a cake pan) and using a heat gun just melted out enough wax to make the repair. You then gently heat the removed wax and pour it back into the transformer can.
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