gaby4883@aol.com
I just picked up one of these today at a thrift store for $10. Like yours, the only thing wrong with it is dirty pots. I don't have any info on it but I did find a site that has the service manual: http://www.tiac.net/users/mgasman/manuals_hk.html
I think it sounds great -- especially for such a small investment. Heck, the phono pre is worth more than ten bucks to me!
It's been more than a year since you posted this so if you even read this, you've probably dug up some info already. If that's the case, will you please let me know the scoop on it? I'll check this post regularly or feel free to email me at the above address.
Thanks!