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phoenixengr

Responses from phoenixengr

Calling all Sota fans.
I have no idea why. It is a 3 phase AC synchronous motor. Synchronous motors are best for turntables because they will automatically adjust torque to maintain the speed dictated by the AC signal they are given. It happens instantaneously. I sus... 
Phoenix Eagle Versions?
The original Eagle used a class AB output amp and was rated for 15W max.  The wall adapter was 48VDC and 60W.  Starting at SN 620240 the output amp was changed to a class D type and the output was rated for 25W.  The wall adapter was 24VDC and 60W... 
I finally get it!
A 1mm error in effective length implies a 0.1mm difference in overhang and a 0.1 deg difference in cartridge alignment. This should not be a drama. Read the articles. @olddearsWhere are you coming up with your numbers? A 1 mm difference in effecti... 
I finally get it!
slaw-VPI has their metal work done by MDI, a very competent machine shop in NJ, so I don't think it is machining tolerances.  VPI assembles the parts, made by other companies for them, so it may be an assembly error.From what I can tell, part of t... 
Turntable power supply/motor’s role in SQ for belt drive TT
You may want to look at the motor/controller offered by SOTA:https://sotaturntables.com/product-category/eclipse-series/  
Recapped Valhalla or new Herculis II?
https://www.diyaudio.com/forums/group-buys/349742-turntable-tachometer-motor-speed-controller.html#post6086530  
speed controller for Lenco or Garrard
Yes, Condor is the name of the 3 phase PSU. 
speed controller for Lenco or Garrard
The Eagle and the Condor are completely different and not interchangeable.  The Eagle is a universal PSU that will drive any 115/230VAC motor up to 25W.  The Condor is a low voltage PSU for a very specific 3 phase BLDC motor;  it does not work wit... 
Linn LP12 factory power supply upgrade or 3rd party? Need to do 45’s.
You can build your own PSU for ~£100  which will include closed loop feedback and a tachometer:https://www.diyaudio.com/forums/group-buys/349742-turntable-tachometer-motor-speed-controller.html#post6086530  
Help!! Bought Rega TT in the UK and now cant use it in the U.S.
If it's a new Planar 2, it uses a 24VAC motor;  it would come with a 220V to 24VAC wall wart.  You will need to replace the wall wart with a 120V to 24VAC version and get the correct pulley for 60Hz operation.  The pulley will have to come from Re... 
VPI's new "Vanquish" Ultra High-End turntable is a STUNNER!
@wspohn-  That's an interesting point. You can compare the incremental improvement in SQ of this set up, but compared to what?  I seriously doubt anyone with a $8K analog front end and $20K total system cost would install this TT into their system... 
US source of Panzerholtz?
@bdp24-I don't know the properties for slate vs granite;  look on-line for the parameters or get some pieces and test it.  The links I provided on the DIY site to Bryan's blog pages might have some insight as well. 
VPI's new "Vanquish" Ultra High-End turntable is a STUNNER!
"Or perhaps run with a higher interpolation multiplier?"I played with the numbers;  I couldn't find a solution with the current encoder that didn't produce non-integer results, except with a timing window other than 1 second. 
US source of Panzerholtz?
I did a DIY plinth several years ago and settled on Corian/MDF/Corian.  The MDF was soaked with a very thin 2 part epoxy (Smith Systems Clear Penetrating Epoxy Sealer or CPES), sort of a poor man's Panzerholtz.  The results were quite impressive a... 
VPI's new "Vanquish" Ultra High-End turntable is a STUNNER!
"i assume that they are using encoder interpolation to get the count up to 2560 P/R?"The encoder ring has 160 poles (80N/80S) spaced every 2mm. This would produce 80 PPR on its own. The pickup interpolates 8x (this is the source of the SDE or subd...