Clack said:Yes if you use o rings as i did
I read about that before....
How does it sound with the orings ? (The thread may be in constant contact with them.... )
Or do you reach a high level of tuning and the thread runs in the middle ?
Ricardo
Hi Franwoodturner-fran said:
Looks like you are on your way....
I found a 160VA 220 - 110v TX and decided to try it.
I just hooked the TT to the 110v winding, without any resisors.
As a matter of fact, the TT motor and cap+resistor are stock.
I am really amazed by the results:
The platter needs some pushing during startup but reaches 33rpm in less than 1 minute.
The mottor is now inaudible (I tried to hear it without lowering the pickup)
The benefits are a lower noise floor, better detail retrieval (now I hear high freq souns I did not realyse where there) and a better instrument diferentiation.
The TX gets hot so I believe this setup is not very echo...
Nevertheless the results are so good that I am planning to get a bigger TX (Toroid) and build a propper case.
is it possible to avoid the resistor just by choosing a 220 - 70v TX ?
Regards
Ricardo
RCruz....
I know I'm not woodturner-fran, but....
What I would recommend is to adjust the resistor(s) until you get a nice combination of "start-up" time and reduced motor noise. You can always bypass the resistor for startup (perhaps with a momentary switch?).
There will be a "magic spot" where the motor noise is essentially the quietest, but it may not be at 70 volts. Once determined what the "magic number is" then shoot for a toroid with a similar (or slightly higher voltage) and use a minimum resistance to drop the voltage down to the final requirement.
stew
I know I'm not woodturner-fran, but....
What I would recommend is to adjust the resistor(s) until you get a nice combination of "start-up" time and reduced motor noise. You can always bypass the resistor for startup (perhaps with a momentary switch?).
There will be a "magic spot" where the motor noise is essentially the quietest, but it may not be at 70 volts. Once determined what the "magic number is" then shoot for a toroid with a similar (or slightly higher voltage) and use a minimum resistance to drop the voltage down to the final requirement.
stew
Re: Ricardo...
Now I will build a jfet RIAA and finally balance things with my highly modded CD53.
Ricardo
Indeed........ This seems to be one of the major neglects.... I wonder what a DC motor should do here.Nanook said:
I am happy you are enjoying the results.
Now I will build a jfet RIAA and finally balance things with my highly modded CD53.
Ricardo
Re: balance things with your modded CD53?
I believe it is possible but not very easy.
My CDP has two clocks, 6 TX, 10 independent PSU´s 10 sregs and a jfet output stage.
It sounds so amazing that I really must do a carefull job on the RIAA so to get things even.
Maybe my SME3009 is not the best option for the Benz ACE I am using.... The mid and high freq are unbeatable but the bass needs some tightening.
Regards
Ricardo
Hi StewNanook said:I don't think so. The analog rig should absolutely kill your cd player....
I believe it is possible but not very easy.
My CDP has two clocks, 6 TX, 10 independent PSU´s 10 sregs and a jfet output stage.
It sounds so amazing that I really must do a carefull job on the RIAA so to get things even.
Maybe my SME3009 is not the best option for the Benz ACE I am using.... The mid and high freq are unbeatable but the bass needs some tightening.
Regards
Ricardo
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