View Full Version : Wanted: Mpingo spacer for Denon 103
Anyone got one of these they're not using?
Would save me getting one all the way from Korea ... http://www.ebay.co.uk/itm/Denon-Cartridge-Ebony-headshell-damper-Mpingo-spacer-African-blackwood-clubWOOD-/190506528284?hash=item2c5b12ee1c%3Ag%3Av64AAOSwd4t T1PmD&clk_rvr_id=1288957207296&afsrc=1&rmvSB=true&ul_ref=http%253A%252F%252Frover.ebay.com%252Frover %252F1%252F710-53481-19255-0%252F1%253Ftype%253D4%2526campid%253D5336643969%2 526toolid%253D10001%2526afsrc%253D1%2526customid%2 53D2113X565594Xae89b9e2bbe0fae5835896afbc2d8be2%25 26mpre%253Dhttp%25253A%25252F%25252Fwww.ebay.co.uk %25252Fitm%25252FDenon-Cartridge-Ebony-headshell-damper-Mpingo-spacer-African-blackwood-clubWOOD-%25252F190506528284%25253Fhash%25253Ditem2c5b12ee1 c%25253Ag%25253Av64AAOSwd4tT1PmD%2526srcrot%253D71 0-53481-19255-0%2526rvr_id%253D1288957207296&ul_noapp=true
Wakefield Turntables
20-08-2017, 20:18
Yep thats how I got mine. Why not speak to Speedy Steve?
What's so special about Mpingo?
What's so special about Mpingo?
Nothing ... most anything that was properly dimensioned would do. It's for an interchangable headshell, so the Denon needs extra depth to align with my other carts (SPU, etc). I have a couple of metal spacers, but they add too much weight and/or depth. And Marco said so ....
walpurgis
20-08-2017, 21:05
I make my spacers from 'Paxolin'. Very rigid but quite light. Cheapish too. Comes in various thicknesses and can be neatly shaped with hand tools.
mad-moon
20-08-2017, 21:13
try this chap in Germany....he's got quite a lot of different woods....dare say if you contact him...he'll do it in anything you want....
https://www.ebay.co.uk/sch/m.html?_odkw=denon+103&_ssn=jb_0-0-7&hash=item3d44d0d32b%3Ag%3AtR0AAOSw241YggL9&item=263147541291&_osacat=0&_from=R40&_trksid=m570.l1313&_nkw=denon+103+spacer&_sacat=0
try this chap in Germany....he's got quite a lot of different woods....dare say if you contact him...he'll do it in anything you want....
https://www.ebay.co.uk/sch/m.html?_odkw=denon+103&_ssn=jb_0-0-7&hash=item3d44d0d32b%3Ag%3AtR0AAOSw241YggL9&item=263147541291&_osacat=0&_from=R40&_trksid=m570.l1313&_nkw=denon+103+spacer&_sacat=0
Thanks Alan ... that's quite a selection he offers ... now I have option-anxiety :lol:
I make my spacers from 'Paxolin'. Very rigid but quite light. Cheapish too. Comes in various thicknesses and can be neatly shaped with hand tools.
I think my Dad has some bits of that in his garage ... it was used for mounting electrical components, wasn't it? Or maybe that's bakelite he has :scratch:
I make my spacers from 'Paxolin'. Very rigid but quite light. Cheapish too. Comes in various thicknesses and can be neatly shaped with hand tools.
If 'Paxolin' is the same as SRBP (as in Veroboard), then that is what I have used under one of my 103s mounted in an EMT-G headshell.
walpurgis
20-08-2017, 21:44
If 'Paxolin' is the same as SRBP (as in Veroboard), then that is what I have used under one of my 103s mounted in an EMT-G headshell.
Yes it is. Phenolic sheet can also be used.
I think 'Tufnol' (a bit like SRBP, but resin bonded cloth instead) could be a suitable material to use, and useful substitute to exotic African hardwoods.
mad-moon
20-08-2017, 21:44
You might want to consider this too...at only 3 grms....
http://www.ebay.co.uk/itm/IsoKinetik-Cartridge-Stabiliser-3-Gram-/292131453803?epid=1361239181&hash=item4404643b6b:g:4WsAAOSwCQZZKXz6
mad-moon
20-08-2017, 21:46
or...I have a piece of Teflon 1.6mm thick...if you want to manufacture your own....I made one for my Goldring Eroica to very good effect...
walpurgis
20-08-2017, 21:48
I think 'Tufnol' (a bit like SRBP, but resin bonded cloth instead) could be a suitable material to use, and useful substitute to exotic African hardwoods.
It is. Each material, Tufnol, Paxolin and Phenolic sheet are ideal. I keep a stock of each as I often need to make something for projects.
Carbon fibre sheet is available too. Very rigid and light. Not sure it offers significant advantages though and it costs more.
gwernaffield
20-08-2017, 22:00
Make mine out of PTFE it is light , and inert , works very well,dont use carbon fibre ,fibre's are nasty hard to drill , need to get them cut on a water jet , i have a couple of large blocks and cannot get them cut any where LOL
walpurgis
20-08-2017, 22:06
Make mine out of PTFE it is light , and inert
No solid is mechanically inert. So there! :D
No solid is mechanically inert. So there! :D
PTFE is chemically inert, electrically inert, but mechanically inert? - no, not really.
gwernaffield
20-08-2017, 22:59
Barry i have used it for a while and it sound great and light too, you can buy them ready made off eveil bay , high heat resistance
high resistance to chemical agents and solvents
high anti adhesiveness
high dielectric properties
low friction coefficient
non-toxicity.
PTFE is generally considered a thermoplastic polymer; at 327°C it maintains a very high viscosity, thus requiring particular transformation techniques for manufacturing of finished and semi-finished goods.
PTFE can be used at any temperature from -200°C to +260°C peter
Delrin would IMO be a better material to use.
gwernaffield
20-08-2017, 23:12
it heaver than PTFE and hard to drill , and twice the price , i have some it you want a piece 2mm thick
walpurgis
20-08-2017, 23:13
high heat resistance
high resistance to chemical agents and solvents
high anti adhesiveness
high dielectric properties
low friction coefficient
non-toxicity.
PTFE is generally considered a thermoplastic polymer; at 327°C it maintains a very high viscosity, thus requiring particular transformation techniques for manufacturing of finished and semi-finished goods.
PTFE can be used at any temperature from -200°C to +260°C peter
Erm. We're talkng about use as a spacer in a headshell here. No extreme conditions involved (I hope). ;)
gwernaffield
20-08-2017, 23:15
NO mate but if you want i piece of delrin just drop me a pm their are so many diffrent materials to try ,some times things get a bit OTT,i have Ptfe upto 3mm and delrin 2mm, just pm
peter
walpurgis
20-08-2017, 23:28
their are so many diffrent materials to try
peter
Thanks for offering.
Don't think I've got Delrin knocking about, but I have PTFE, a bit of nylon in various forms, acrylic plastic, carbon fibre tubing and sheet, epoxy sheet and tubing, various hardwoods and many metals. Must get around to using it all up really! :)
gwernaffield
20-08-2017, 23:36
:lol:
jandl100
21-08-2017, 07:36
Peter, I have a carbon fibre spacer you are welcome to have.
http://i.imgur.com/ZXSDTh7.jpg
mad-moon
21-08-2017, 08:47
Peter, I have a carbon fibre spacer you are welcome to have.
http://i.imgur.com/ZXSDTh7.jpg
Nice one Jerry...:thumbsup:
I've got sheets of Styrene, it's not hi tech, but a nice soft plastic made for modeling. And I've got it in a dozen thicknesses, as thin as .010", and as thick as .080". Real inexpensive. I've made a shim to raise the tone arm mount out of it, so easy to work with.
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Thanks everyone for the replies, especially Jerry :thumbsup:
I think I'm sorted now.
Vinyl turner
12-09-2017, 23:51
I am reading this with interest as I need to make a spacer for my cartridge (Ortofon AS212 tonearm that is too close to the lifting arm) and would benefit from perhaps 3mm additional depth.
I am on the verge of ordering a sheet of paxolin but wondered if anyone had experimented with balsa wood ?
Only asking as I have various sheets/sizes and was thinking of mocking a spacer up as a test to see if 3mm was about right or whether less/more thickness would be better. Suppose I could always give it a listen.
Anyone tried it ?
jandl100
13-09-2017, 03:45
As I recently posted on another thread, I once heard a loudspeaker with a cabinet made of balsa wood. It sounded amazingly natural and remains (in my memory) one of the best speakers I have heard.
Maybe it would be as good as a cartridge spacer?
Certainly worth a try!
Interesting idea. My guess would be that paxolin would be more likely to 'couple' the cartridge and arm (vibrationally-speaking) and that balsa wood would be more likely to isolate / de-couple them. I suppose it'll depend on the density and stiffness of the balsa, too?
I've always been intrigued by the Cartridgeman isolator, although never tried one, as it seems poor value for money to me.
http://www.thecartridgeman.com/isolator.htm
http://hifipig.com/the-cartridge-man-isolator/
Maybe start another thread in Analogue Art, Mark?
BTW, the carbon-fibre spacer that Jerry sent is working nicely :thumbsup:
Vinyl turner
13-09-2017, 19:36
Interesting idea. My guess would be that paxolin would be more likely to 'couple' the cartridge and arm (vibrationally-speaking) and that balsa wood would be more likely to isolate / de-couple them. I suppose it'll depend on the density and stiffness of the balsa, too?
I've always been intrigued by the Cartridgeman isolator, although never tried one, as it seems poor value for money to me.
http://www.thecartridgeman.com/isolator.htm
http://hifipig.com/the-cartridge-man-isolator/
Maybe start another thread in Analogue Art, Mark?
BTW, the carbon-fibre spacer that Jerry sent is working nicely :thumbsup:
I guess the paxolin will be a better material, but I will see what I can do.
Tightening the cartridge screws/bolts may be difficult with balsa as it would tend to crush the wood unless I can use some form of washer/plate to spread the 'compression'.
If I find it a raging success I'll drop something onto a new thread. If it isn't ....... I'll get me coat !
jandl100
13-09-2017, 19:55
Leave your coat be.
I'd be very interested to know the result of the balsa wood adventure.
I wouldn't worry about the tightening issue - loose coupling seems to go with the whole balsa wood concept.
Fascinating. :popcorn:
walpurgis
13-09-2017, 20:24
Tightening the cartridge screws/bolts may be difficult with balsa as it would tend to crush the wood
If you tighten a cartridge enough to crush a balsa spacer, then I'd say you would be overtightening. Cartridge bolts need to be nipped up firmly, but not brutally tight. It's not uncommon to see cartridges with cracked cases due to overtightening. I have three. Not done by me I might add. I generally use nylon bolts, as they will strip threads before any damage occurs elsewhere.
Vinyl turner
13-09-2017, 21:19
........I generally use nylon bolts, as they will strip threads before any damage occurs elsewhere.
Great idea Geoff,
Do you have a particular source for them ? (before I go off scouting through ebay)
walpurgis
13-09-2017, 21:21
Great idea Geoff,
Do you have a particular source for them ? (before I go off scouting through ebay)
No. I just scour ebay. M2.5 is what I go for. Lengths vary.
Sometimes I buy overlong ones and cut them down with a craft knife.
This thread has been an inspiration to me. I have been way too tight to pay for those eBay spacers, and way too busy to make my own. But I have paxolin and some incredibly dense and hard old driftwood from NZ left over from an aborted project. And oak, and balsa! Ill get the dropsaw onto it and fashion some thicknesses of materials to start with.What thicknesses would you recommend for Peter's application (103 and SPU swapping) guys? Happy to send a few unfinished slices out if anyone else wants a play around, but you'll have to make them into the.right size yourself, just PM the thickness you'd like.☺
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