Mission 774 tone arm

[vinyljunky]

I've noticed the counterweight on my mission 774 tone arm is not at right angles to the tube is this right for this particular tone arm not sure what material is used in the centre of the counterweight sound is sublime still http://uploads.tapatalk-cdn.com/20161231/36c66b1ca24b776f78ec74aa8415227d.jpghttp://uploads.tapatalk-cdn.com/20161231/1714467fd76770531f1d8bf47cf70420.jpghttp://uploads.tapatalk-cdn.com/20161231/32f3c6e9cc51adcef791b26dca4b16dc.jpg


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[Bigman80]

Looks like your soborthane has lost its mass. I spoke to (?) Steve who makes all the tone arm boards etc. Said he can make a replacement which I'm going to try next. Also J7 used to repair them.

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[vinyljunky]

yeah thought that oliver thing is im not noticing any degridation in sound quality got my cart tracking at 2.1g dont use any damping fluid in the trough although some people recommend this seems like a not substantial material to use as a vibration damper for the counterweight i'm assuming thats the idea of the sorbethane:scratch:

[walpurgis]

Yeah. Some get like that. It won't hurt the sound if it gets a bit crooked.

I'm thinking of making solid replacement inserts to replace the sorbothane. That may improve the sound further, as the rare solid, one piece counterweights are reputed to sound good.


(sorry about the edit on your post Oliver. I was trying to reply and had used the wrong button)

[vinyljunky]

geoff let me know if you do i'll purchase one off you

[walpurgis]

yeah thought that oliver thing is im not noticing any degridation in sound quality got my cart tracking at 2.1g dont use any damping fluid in the trough although some people recommend this seems like a not substantial material to use as a vibration damper for the counterweight i'm assuming thats the idea of the sorbethane:scratch:

The fluid damping is very effective in the right application. With Deccas for instance and lively low compliance MCs.

[walpurgis]

geoff let me know if you do i'll purchase one off you

A mere £800. Bargain!!



(just joking :D)


I'll look into it in the next few weeks. I'll have to remount my lathe, but I have stocked up with suitable materials.

I'm also planning to turn out some spare bias weights, headshell (headblock) mass weights and a counterweight slip on mass ring. Maybe even a carbon fibre arm wand too.

[vinyljunky]

I'll have threehttp://uploads.tapatalk-cdn.com/20161231/374ca866833e8f1ea8e1eb2579e1d619.jpg


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[Bigman80]

A mere £800. Bargain!!



(just joking :D)


I'll look into it in the next few weeks. I'll have to remount my lathe, but I have stocked up with suitable materials.

I'm also planning to turn out some spare bias weights, headshell (headblock) mass weights and a counterweight slip on mass ring. Maybe even a carbon fibre arm wand too.
I've been waiting since we first spoke for you to do a run of parts lol. Count me in.

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[karma67]

my last 774 arm had the famous sagging counter weight problem,i was going to try injecting pva glue into it as an experiment to try and firm it up and bring it back to sitting level.the alphason tonearm came along and i sold the 774 so i didn't try it but if its really bad you have nothing to loose.