Undertow: In my experience (which is admittedly limited to one example, but I don't think this a controversial statement), increasing the capacitance of the motor regulation can indeed have a direct impact on the audio signal, as you put it (irrelevant that the cap is not within the electrical signal path -- a TT/cart, as a transduction system, also has a mechanical signal path which is equally important), and not only in the case of the regulation being overtly faulty beforehand (mine wasn't). I have no idea whether this particular table would benefit (or yours), mine did. However, my comment was more on a theoretical level, just to point up that what you wrote came out sounding wrongheaded IMO, perhaps unintentionally, but still it couldn't be further from the truth to imply that motor regulation in a TT doesn't directly bear upon the resulting audio signal.
Capacitors in line with TT motor - Upgrade?
I am doing some major upgrades to a 25 year old BSR turntable, such as going to a MC cartridge, rewiring the tonearm with Cardas wire, adding mass to the platter, replacing the flimsy plastic base with a massive (40 LB) plastic block, removing the motor from the sub-chassis mount and attaching it instead to the massive base, etc. When I pulled the motor out, I noticed it had two capacitors in circuit with it, a 5000pF ceramic, and a 1.5 uF cap made of hard white epoxy-looking material (not sure what type it is). Would it be a good idea to replace these with new caps? Would upgrading the quality make any difference to the motor's performance? Any help is appreciated.
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- 11 posts total
- 11 posts total