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Vintage DD turntables. Are we living dangerously?

I have just acquired a 32 year old JVC/Victor TT-101 DD turntable after having its lesser brother, the TT-81 for the last year.
TT-101
This is one of the great DD designs made at a time when the giant Japanese electronics companies like Technics, Denon, JVC/Victor and Pioneer could pour millions of dollars into 'flagship' models to 'enhance' their lower range models which often sold in the millions.
Because of their complexity however.......if they malfunction.....parts are 'unobtanium'....and they often cannot be repaired.
128x128halcro
jpjones3318's avatar
jpjones3318
117 posts
 
I don't know what the genesis of this friction is, but I'd be very appreciative to not be used as cannon fodder in it.  I'm just a guy trying to save good tables, and perhaps make them a bit better in the process. No more, no less. 
Post removed 
lewm
6,770 posts
 
Dear JP, Congratulations on your perseverance and genius in pursuing the Mk3 "problem" to its potential solution.  Now that you're here, and pursuant to Dover's lament and criticisms, did you mean to infer that the apparently increased accuracy of your circuit vs that of the MN6042 would confer a meaningful, not to say audible, improvement in the performance of the Mk3?  That would be really something to behold.  Like I may have said above, in reading your posts on Audiokarma, I was not sure that the few Hz by which your circuit "beats" the MN6042 in accuracy would necessarily translate to performance.  But this is also because I may have a misconception about the true meaning of those data points you posted.  Can you comment further?

Also, I will be contacting you privately about purchasing one of your boards.  Thanks again for your work.
lewm
6,770 posts
 
Dear Dover,  To ask a question or to wonder is not to "trivialize".  The basis for learning is questions and answers. That's about all I can say to you that is not vitriolic.  I would hope that JP appreciates the fact that my earlier post meant him no disrespect at all.  In fact, I am rather amazed at his work, since failure of the MN6042 has been the downfall of many Mk3s.

Dear JP, I now see that you did in fact respond to my question about the accuracy of your circuit vs that of the MN6042.  Sometimes these threads move too rapidly for me to be current. I did wonder whether 262.XXX kHz was the operative number or whether it was the much higher frequency that gets divided to yield 262.XXX kHz.  Now I know it is the latter, which enhances the significance of the difference between your circuit and that of the MN6042.  What's additionally appealing about your circuit is the fact that if it ever should fail, it's fixable with parts that are readily available.
rwwear
2,692 posts
 
I still have question about the other chips inside the MK3. Are they easily found, not as important or just don't ever die?
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