[Squire]

Congratulations!  They are great looking units!  The knobs are stuck.  They should pull off with little effort.  Try gently prying them up with a teaspoon being careful not to ding the cabinet.  I'm working on one of those now.  (See my avatar) I'll tell you now the chassis is a sardine tin!  It's very cramped in there but I'm managing to get it done.  I should be done with the recap in a day or so.  I'm happy to say I've only had to replace a few resistors. Most have tested within tolerance which is great because some of them are buried!  Your D-10 record changer will need an overhaul and will need the original crystal cartridge replaced.  They are always dead and aren't made anymore.  You can have the original rebuilt or with a slight modification you can replace it with a Pfansteihl P51-3.  It will also need a new idler wheel.  Both items are available through the Voice of Music website.