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J.A. Michell Prisma restoration
- Thread starter AngrySailor
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- Oct 15, 2014
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- ---not quite right
The finger lift is broken off of the SME headshell... I found a replacement headshell but didn’t like the £296 price tag... found these guys on crapazon which will mount to the cartridge bolts... figured worth a shot. Also ordered an anti skate test record for final set up. Just another thing to add to the long list of jobs when I get home...
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For what you get, that's expensive. Last year I ordered one of same for an SME headshell. It seemed like dozens of Chinese vendors (or the same one dozens of times) were offering those on E-bay for two or three bucks and same for shipping.
I've still yet to install mine - still in the plastic bag.
Granted, I'm in BC and took about a month to get. I could not bring myself to spend more than what I did for a small piece of metal like that. It only cost pennies to make in the first place.
The one I got goes underneath the headshell therefore the V bend. The picture you posted looks like it goes on the top. That works and I have an SME headshell where a finger lift from a Hitachi (or something) headshell was installed that way. Doesn't look too strange.
I've still yet to install mine - still in the plastic bag.
Granted, I'm in BC and took about a month to get. I could not bring myself to spend more than what I did for a small piece of metal like that. It only cost pennies to make in the first place.
The one I got goes underneath the headshell therefore the V bend. The picture you posted looks like it goes on the top. That works and I have an SME headshell where a finger lift from a Hitachi (or something) headshell was installed that way. Doesn't look too strange.
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Yeah they’re not worth $20 for sure but I didn’t see any on eBay any cheaper. Also by the time I get around to making one I’ll have forgotten about the $20! Any I saw on eBay were $30US for one. If I wins sure it would fit, I might have gone with the under mount. As it is the over mount doesn’t cover the SME logo and I’m wondering about the cartridge to headshell contact with that between them also???
I have a good water jet source but he’s booked out five weeks currently.
Could make them from shim stock as thin as you like.
Someone send me a print and I’ll get a quote.
I’m still finishing up my tonearm drawings or I’d draw it up. Maybe next week I could draw it. I think I’ll use stainless shim stock. Light in a small size and reasonably strong.
Could make them from shim stock as thin as you like.
Someone send me a print and I’ll get a quote.
I’m still finishing up my tonearm drawings or I’d draw it up. Maybe next week I could draw it. I think I’ll use stainless shim stock. Light in a small size and reasonably strong.
Jim,
Could we use a SME or Pioneer finger lift as a model and maybe a CAD machine could do the measuring (an exact copy)? I like 7075 aluminum alloy for strength (almost as strong as steel in the same thickness), lighter weight, and nonmagnetic. I can get a 12" x 12" sheet of .063" 7075 for $21.55. We could make 288 finger lifts (2" x 1/4") from that piece.
https://www.onlinemetals.com/en/buy/aluminum/0-063-aluminum-sheet-7075-t6/pid/12659
If the water jet cutting costs $100, and the material costs $30, shipped; each lift would cost $0.45. I'd bend them for free. If we sold them for $50.00 each, we could advertise them as having more "air" and "bringing the front of the music to the listener", or even "expanding the stereo soundstage" like all the other audiophile products...
Could we use a SME or Pioneer finger lift as a model and maybe a CAD machine could do the measuring (an exact copy)? I like 7075 aluminum alloy for strength (almost as strong as steel in the same thickness), lighter weight, and nonmagnetic. I can get a 12" x 12" sheet of .063" 7075 for $21.55. We could make 288 finger lifts (2" x 1/4") from that piece.
https://www.onlinemetals.com/en/buy/aluminum/0-063-aluminum-sheet-7075-t6/pid/12659
If the water jet cutting costs $100, and the material costs $30, shipped; each lift would cost $0.45. I'd bend them for free. If we sold them for $50.00 each, we could advertise them as having more "air" and "bringing the front of the music to the listener", or even "expanding the stereo soundstage" like all the other audiophile products...
Those get you in the ball oark but stylus in a modulated groove is different than a blank disc.
Observe the cantilever from the front while it plays and fine tune it such that the cantilever stays straight, and not favoring one side or the other.
I used the Rega glass platter for set up and then fine tune by eye. Currently set at zero...
Observe the cantilever from the front while it plays and fine tune it such that the cantilever stays straight, and not favoring one side or the other.
I used the Rega glass platter for set up and then fine tune by eye. Currently set at zero...
need some lab magnifiers for thatHello AS,
I'm a newbie to this site. I was internet researching the Michell Prisma turntable that followed me home last week and found your post. See attached pictures.
This will be a new project for me (like I need another one!) and I was hoping to pick your brain on it. I'm 71 and just getting back into vintage audio.
I noticed your mention of sourcing a new dust cover and wondered how you made out? The cover on mine is cracked. Also wondered if you found any good sources for parts as mine will need some.
Have you contacted Michell support/service and if so were they helpful?
All for now and thanks,
Dennis
I'm a newbie to this site. I was internet researching the Michell Prisma turntable that followed me home last week and found your post. See attached pictures.
This will be a new project for me (like I need another one!) and I was hoping to pick your brain on it. I'm 71 and just getting back into vintage audio.
I noticed your mention of sourcing a new dust cover and wondered how you made out? The cover on mine is cracked. Also wondered if you found any good sources for parts as mine will need some.
Have you contacted Michell support/service and if so were they helpful?
All for now and thanks,
Dennis
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Hello and welcome. Nice score! Yes I did have a new dust cover made by Hank at P&A plastics in Hamilton Ontario, Canada. https://paplastics.com/
He did a very nice job of it. I’m quite happy with it. Michel was receptive to making a replacement cover also however the UK is a long ways from me and I can only imagine what they would charge. They were helpful with information and small parts. Belts are readily available and the same across most of their turn tables. I think the belt was $30?
let me know if I can be of any help.
He did a very nice job of it. I’m quite happy with it. Michel was receptive to making a replacement cover also however the UK is a long ways from me and I can only imagine what they would charge. They were helpful with information and small parts. Belts are readily available and the same across most of their turn tables. I think the belt was $30?
let me know if I can be of any help.
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- Joined
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- ---not quite right
Yes, mine is in use now and working flawlessly. I still haven’t reproduced original style legs but it’s otherwise complete. What parts are you missing? Yours looks very complete by your photos but then again I’m on my phone and can’t blow them up real big... looks like your sweep brush is even intact, I had to source a horse to repair mine!