Magna Audio's custom-made counterweight balance and armboard service!

The 210 gram for a Jelco is mine, I only asked Steve to make it last night:eek:

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Originally Posted by speedy.steve

Here is a CW for Mr Coco. He wanted 240g which would be rather large in brass or SS.
This is to balance his IO electromag cart...

He found Tungsten - I said isn't that rather hard to work? So Tungsten copper alloy was the trick, being pretty heavy - just 10cm of it at 41mm dia weighed 2.4kg!

Here is the new weight vs the Alphason ~ 100g one.

Note the inner nylon sleeve which presumably acts as a dampening. The grub actually presses the nylon tube onto the
CW arm stub.

http://inlinethumb46.webshots.com/47...600x600Q85.jpg

http://inlinethumb23.webshots.com/29...600x600Q85.jpg

The slight salmon tinge is quite nice and fades away a bit with some weathering.

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Hi Steve,

I've sent you a PM

Regards,

Dave

Here it is Dave.


https://uploads.tapatalk-cdn.com/201...fe0d0b99f2.jpg

EBONY!

Started as a 5" x 5" x 2" lump.
All waxed and hard to tell what it was like.

Spun the corners off

https://uploads.tapatalk-cdn.com/201...a68a21e998.jpg

Smoothed a bit

https://uploads.tapatalk-cdn.com/201...ec3862b7d0.jpg


Then a bit more and and as a quick test with some oil on to see how black it really goes

Pretty dark

https://uploads.tapatalk-cdn.com/201...1cd590c19a.jpg


Lots more turning and smoothing to go but it is going to look all right I think.

Hehehe... Not just ANY old SL-1210, boyo, but the main man's one! :eyebrows: ;)

Looking good so far, Steve. I love the depth of colour it's got in the last picture, after having been oiled - gorgeous! :stalks:

I have a good feeling about this armboard, both in terms of sonics and aesthetics! Looking forward to seeing further pics of progress - you're doing a great job so far, mate :cool:

Marco.

Nice work :) Watch out Elf 'N' Safety don't try to track you down with all those belts everywhere :D

Just kidding ;) I have to think of everything before I switch on my bench saw, I'm sure you do the very same Steve ;)

hehe - it's a 1940's Southbend lathe. What is H&S?
Why would you put your fingers anywhere near the belts when it's on?

Yes the table saw is much scarier - One of the technicians at our school (we had some serious kit there) chopped his thumb clean off on the table saw - Gold only knows what he was trying to do - I can't imaging putting my thumb anywhere near the blade - there are more imaginative ways to prod wood through than that!

I believe in the Darwin awards:-)

Quote:

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Originally Posted by speedy.steve

hehe - it's a 1940's Southbend lathe. What is H&S?
Why would you put your fingers anywhere near the belts when it's on?

I believe in the Darwin awards:-)

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Exactly, I'm on your side of the fence :eyebrows:

Looks like ebony has excellent sonic properties, otherwise they wouldn't be using it to make armtubes for these babies:

http://www.da-vinci-audio.com/#/tonearm/

;)

Marco.

Hi Steve,

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Then a bit more and and as a quick test with some oil on to see how black it really goes...

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Try and bring out the natural colour of the wood as much as possible :)

Marco.