Graham D Posted August 20, 2010 Posted August 20, 2010 As part of the upgrade to my Thorens TD160 I am installing a Denon DL160 cartridge. However I have discovered the supplied Denon alloy mounting screws are 2.5mm in diameter and therefore will not fit the Thorens mounting plate as it is tapped at 2mm. I have several options that I would appreciate your opinions on. 1) Use the original Thorens steel screws, but I am concerned that this will affect the magnetic field in the cartridge. ( I presume that is why Denon supply non-magnetic alloy screws). 2) Tap the Thorens mounting plate to take the 2.5mm screw, - where in Auckland do I source a 2.5mm thread tap ? 3) Find some 2mm alloy or brass screws, - again where in Auckland do I source these screws? Has anybody had experience with this combination ,and what was your solution.? The simplest solution is to use the Thorens steel screws, which in fact fit and secure the cartridge perfectly, but as I said I am concerned that this will affect the performance of the cartridge. Graham.
Owen Y Posted August 20, 2010 Posted August 20, 2010 Gidday Graham, you've been away a while No I wouldn't use steel screws myself, but Thorens obviously think that they have negligible effect on magnetic fields etc. EDL Fasteners stock Stainless steel machine screws (the Thorens thread should be standard metric), socket head is good - you may need some wee washers for the Denon DL160 slots. Ideally, better to use use brass machine screws - harder to source however - try W R Twigg Ltd. RS should have them too, but you'll have to buy a bag & sell them to forum members - Cheese head or Pan head.
Graham D Posted August 23, 2010 Author Posted August 23, 2010 EUREKA !!! R S Components had 2mm pan head brass machines screws. Only snag was, as you suspected Owen, I had to buy a bag of 100 of the little buggers for $20. If any one needs some of these let me know, price is very reasonable to forum members !! The magnet inside the DL160 cartridge is incredibly strong, so much so that the fitting instructions warn that a metal screwdriver could be pulled towards and damage the stylus if you are not very carefull. I am about to disembowel the trusty old Thorens to apply bitumen sound barrier mat material and rubberised cork where recommended, and a new thicker base board. If I can find a genuine belt I will replace that also although the original one still seems to work fine. Makes for an interesting winter/spring project. Graham.
Owen Y Posted August 23, 2010 Posted August 23, 2010 Where's the best place to get self-adhesive sound dampening sheet material? Thin enough to stick onto on metal chassis plates etc.
paul300b Posted August 23, 2010 Posted August 23, 2010 Owen Y;131125 wrote: Where's the best place to get self-adhesive sound dampening sheet material? Thin enough to stick onto on metal chassis plates etc. I got a roll of stick-on ~3mm cork for around $10 at Mitre 10 Mega
Graham D Posted August 23, 2010 Author Posted August 23, 2010 Jaycar Electronics have the bitumen type in 330 X330mm sheets. They call it Sound barrier Mat. Graham.
Nak-Mad Posted August 23, 2010 Posted August 23, 2010 Please keep us posted with the progress/results of your rebuild Graham.. Have a TD160 to do myself soon... the DL160 is a fine cartridge too
Owen Y Posted August 23, 2010 Posted August 23, 2010 Ah, plenty of damping sht options, I need to get out more
Graham D Posted August 30, 2010 Author Posted August 30, 2010 Nak-Mad;131150 wrote: Please keep us posted with the progress/results of your rebuild Graham.. Have a TD160 to do myself soon... the DL160 is a fine cartridge too I have started a thread under TWEAKS with pictures and details. Cheers Graham.
enzedone Posted August 31, 2010 Posted August 31, 2010 Owen, Check out this for Dampening I used it for my Marantz 52 upgrade The dampening material I purchased from a company called Wurth http://www.wurth.co.nz/site/en/homen...Catalogue.html Just go down the list to find 'sound deadening pads'. They come in packs of 6. I used 3 in total, this included top inside layer, bottom plate(both sides) and the internal bracing.
Owen Y Posted August 31, 2010 Posted August 31, 2010 They look good... you used the alumin clad bitumen pads, not the foam sht? Price & nearest source?
enzedone Posted August 31, 2010 Posted August 31, 2010 Wurth Give them a call, I think I paid about $60 a pack delivered. The only thing you have to watch is the fibers coming off, it may pay to spray it with a glue/spray to put a light coating over it. This may hold all the fibers together. Call then and quote the part number, they'll know what your on about. Just remember to measure, and measure again before cutting. And be very careful cutting and handling this stuff, as it's easily snapped. Once you place it down on a surface, that's it..............stuck! Sound Deadening Pads Size: 550x250x2 Contents: 6x sheets Part No. 0890100060 Wurth New Zealand Sales: 0800 683 040 09 262 3040 09 262 3030
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