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L*nn Sondek lp12 Turntable
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peterb View Drop Down
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Points: 354 		Post Options Post Options   Thanks (0) Thanks(0)   Quote peterb Quote  Post ReplyReply Direct Link To This Post Posted: 19 Oct 2024 at 10:00am
Thanks for all the information.

Originally posted by patientot patientot wrote:

The strobe disk will work if you print it to scale and use it properly.

There is a note on the Vinyl Engine Strobe page that says the print scale is unimportant, which kind of makes sense as it relying on the synchronisation of the black and white stripes with the flash of the light.
My next problem is finding an old filament lightbulb, everything is LED! 
Peter
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Dual 505-1, Cyrus CD T, DIY 80W MosFet amp and PreAmp, 2xKEF 103.2
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BackinBlack View Drop Down
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Many "mains" LEDs will exhibit quite good 100Hz flicker. They're often better than incandescent bulbs as they have a sharper on/off, as filaments continue to glow through the zero crossing of mains voltage.

Ian
Just listen, if it sounds good to you, enjoy it.
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patientot View Drop Down
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Originally posted by peterb peterb wrote:


There is a note on the Vinyl Engine Strobe page that says the print scale is unimportant, which kind of makes sense as it relying on the synchronisation of the black and white stripes with the flash of the light.
My next problem is finding an old filament lightbulb, everything is LED! 


Yep, you are correct. I must have been thinking of the protractors. In any case, good luck with it.
SL-1200 MK7 (modified) + Reflex M + PSU-1 used with AT150-40ML, AT VM610 MONO, AT VM95ML, Stanton 680mkII + Ogura, and Shure M35X cartridges.
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BAK View Drop Down
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Originally posted by BackinBlack BackinBlack wrote:

Many "mains" LEDs will exhibit quite good 100Hz flicker. They're often better than incandescent bulbs as they have a sharper on/off, as filaments continue to glow through the zero crossing of mains voltage.

Ian


Very true, Ian.
 Another good lamp is the neon. They do flicker more than a filament lamp at the mains frequency when powered directly from the mains.
Bruce
AT-14SA, Pickering XV-15, Hana EL, Technics SL-1600MK2, Lautus, Majestic DAC, Technics SH-8055 spectrum analyzer, Eminence Beta8A custom cabs; Proprius & Reflex M or C, Enjoy Life your way!
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Points: 2139 		Post Options Post Options   Thanks (0) Thanks(0)   Quote BackinBlack Quote  Post ReplyReply Direct Link To This Post Posted: 22 Oct 2024 at 7:39pm
Neons, as applied in Garrard TTs, work reasonably well, but they aren't the brightest bulbs in the lampholder.  I also understand that they can be electrically noisy, creating a "spike" as they strike (i.e. start conducting) on each mains cycle, although whether that is a problem depends on many other design factors.

Ian
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Mission accomplished. Found through one of the TT's sales outlets that there is an ex-employee of L*nn who offers a service of the TT arm bearings so I have had it done. The arm now has so little sideways friction the exact leveling of the deck is essential, in addition the bias setting can be be set lower than suggested. Splashed out on the AT cart, VM750SH and the sonic results are everything I could hope for, I feel very spoilt !! I now just need Santa to put some nice vinyl in my stocking.SmileSmile
Peter
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Dual 505-1, Cyrus CD T, DIY 80W MosFet amp and PreAmp, 2xKEF 103.2
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