by Bobby Basham »
Fri Apr 24, 2009 2:31 am
Hey, crumbs:
The date sticker(s) should be located somewhere on the radio/amp chassis. You may have to poke your head in there with a small mirror and flashlight to see if you can locate it. It could be pasted between two taller components (transformer and supply caps), the FM section or maybe on the side of the amp that's facing the front of the cabinet, which you would probably have to remove the entire unit, or on the side of the transistor heat sink (if you have those)facing away from you.
I have the back off a Maggie right now, and can't see a date sticker anywhere, but I'm sure there's one in there somewhere.
As far as the turntable goes, remove that little C-clip at the base of the spindle, then remove the platter. Turn your control knob on and off to see if the wheel moves freely back and forth. Since this is a later series, it may only have one wheel, unlike the older ones that had two...one to drive the turntable and the other to drive the change cycle. It should push toward where the inside of the platter would normally be when seated back in place. If it's frozen it place, it's like sitting in neutral not making contact with the platter or the motor...some cleaning and lubing of that linkage is in order.
Also check the motor for dust/gunk. They're easy to remove and take apart. Just put it back the same way you took it out. While you have the platter off, check those round bearings and washers at the base of the spindle. Remove, clean and lube.
I don't have the privilege of owning alot of different cleaners and lubes right now, but for me, in some instances, I have used Hammond Organ oil used in those Famous screaming B3's back in the day. It's finer than sewing machine oil and is manufactured to military specs. I haven't noticed any dust or gunk buildup during the years, so it works for me.
Best of luck in retoring your treasure and let me know what you find. I'm always curious about these Astro-Sonics. --BB
Bobby Basham
Tucson, Arizona