Technics Bearing Mod

[Dave Cawley]

Hi Mike, run Explorer on a PC, and the link does work old chap.

Dave

[Marco]

Works fine for me (for a change!). Here's some info from the link:

The high performance was actualized by the fact that the development know-how of SP-10mkII is utilized, the quartz [hueizurotsukudokontororu] DD turntable.

Starting torque 1.5kg cm, prudence 2.5kg (inertial mass 345kg cm2) the large-sized turntable, from when starting with 1/4 revolutions is made speed limit revolution.

The powerful magnetic circuit with big starting torque, using 150 tone arms of stylus pressure, 2g there is no change of rotary speed. In addition, while performing also it is possible to use the cleaner.

Smooth stop of the turntable is actualized with the pure electronic brake.

The Strobo of the LED illumination by the stripe eye in the Ichijo one line is adopted.

The finish the special surface was processed and makes aluminum die-cast the [rinkuru] finish which prevents surface change.
　
Rating of type:

Type Direct drive turntable
Turntable 32cm aluminum die-cast make, 2.5kg
Inertial mass 345kg cm2
Motor Quartz phase locked control
Brush less DC motor
Drive system Direct drive
Rpm 331 /3, 45rpm
Wow flutter 0.025% (JIS C5521) W.R.M.S.
signal-noise ratio 60dB (IEC17B)
73dB (DIN45539B)
Starting torque 1.5kg cm
Starting time 0.7 seconds (90゜) within (331 /3rpm)
Brake Pure electronic brake
Load fluctuation Within 0% 1.5kg cm
Rpm deviation Within ±0.002%
Power source AC100V and 50Hz/60Hz
Electric power consumption 4W
External size Width 368.5× height 99× depth 368.5mm
Weight 8.0kg

Hi Dave,

If the SP20 has a built-in PSU, then in my view that makes it significantly worse than the SP10. Apart from anything else, we know from our experiments with the SL-1200/1210 just how sonically detrimental having a PSU (and associated magnetic field) is underneath the platter and in close proximity to a (possible) partnering MC cartridge.

One of your SP10s with an SP10 Time Step PSU would likely wipe the floor with it!

I suspect though that the rarity value for collectors may attract a few bidders.

Marco.

[chris@panteg]

Its kind of like in between the SP15 and SP25 ' then i guess ' its quite astonishing really just how many turntables and motor units ' Technics and the other Jap company's produced .


There was also an SP12 ' which is as rare as hen's teeth

http://www.canuckaudiomart.com/view_...age_id=1247741

[Marco]

That's very different and rather cool looking!

Marco.

[MartinT]

So it's more like a 1210?

[Dave Cawley]

Hi Martin, at last someone bothered to read my message! Well done!!!!!!

And thanks

Dave

[Marco]

Hi Martin, at last someone we bothered to read my message!

Eh?

Marco.

[Dave Cawley]

So you didn't read it either Marco?

Never mind, and me with the brain the size of a planet..........

Dave

[Mike]

Hi Mike, run Explorer on a PC, and the link does work old chap.

Dave

I did, and it didn't.

Working fine now though...

[Marco]

So you didn't read it either Marco?

Never mind, and me with the brain the size of a planet..........

Do you mean this, Dave:

Look at the position of the switches, look familiar..................

If so, I see what you mean now, but at the time it flew right over my head. You're sometimes a wee bit too cryptic!

Marco.