Interesting Matrin, did you have the Herbies mat before the copper mat, and do you have the external PSU to go with the copper mat?:)
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Interesting Matrin, did you have the Herbies mat before the copper mat, and do you have the external PSU to go with the copper mat?:)
I'm sure somebody could post pics and a few details with the fitting, it would be nice to see and helpful for others tooQuote:
Originally Posted by Marco
Having plenty of detailed pics attracts more interest anyway imo:)
A video on you Tube would do it
Does anyone know the actual weight of an original Techy platter?
Yes, I had the Herbies mat first. It does a good job of damping the Techie platter, but the Copper mat makes it completely inert. I have the external Timestep PSU.Quote:
Originally Posted by Tarzan
ANDRE,
Your concerns about over stressing the motor are ill founded. The motor is sufficiently capable of driving a 14lb platter. As I said earlier the motor can stop the new platter in 3/4 of a turn from 45rpm. (using Dave's older Power Supply) Starting may take a fraction of a second more but then we are not in the DJ business are we?
In fact I am talking to a number of folks from 'The Secret Society of Lathe Trolls' a web site dedicated to those people who directly cut Vynal.
Many of whom use the SL1200 model and require a much heavier platter.
DSJR,
The images you posted would appear to be of the SL1500, This TT has a different mechanical arrangment to the SL1200MKxx models. The coil assembly is separate from the motor drive board, and the bearing housing is different. Also the control cirduitry is somewhat less sofisticated in it's design for very fine speed control.
Remove the bearing/coil unit and check to see if the bearing housing is the same as the standard SL1200. The ring magnet on the platter also differs from the SL1200.
In fact the SL1200 represents a refinement in manufacturing methodology over the SL1500, in that savings were obtained by making the drive coil and main board all one piece component.
Hi Mike,
I've no doubt you're right, but how did you come to this conclusion, i.e. based on what data? :)Quote:
The motor is sufficiently capable of driving a 14lb platter.
Marco.
Hi MartinQuote:
Originally Posted by MartinT
How would you describe the improvement , with the copper mat ?
Marco,
I stated 14lbs as a rough guide based on the fact that I ran one of the platter blanks, fitted with centre boss but withaout any other machining, This particular one weighed about 13.5lbs. There was no apparent motor drive problems and it held the usual rock solid speed control as viewed on a strobe disc.
Hi ChrisQuote:
Originally Posted by chris@panteg
It's difficult for me to separate the Copper mat's performance because, without it, my arm won't quite go low enough to set accurate VTA. What I can say is that the arm + mat combination gave me a huge step up the 'realistic' ladder, portraying the soundstage and musicians in a very natural way with no tonal colouration and greatly expanded dynamic range.
If Mike's platter does the same thing then it's going to be a winner.