I know it's a very old thread I've replied to but I was just given a Drawmer 1960 and it's in need of maintenance. The schematics is no longer available at gyraf's site. Any idea where I could get my hands on it. I know a saw an other thread discussing the same thing here but I can't find it anywhere. I did save the schematics for the mic pre section that was posted in the thread. Any help would be greatly appreciated.