Internal damping of stock arm, experiences?

[Ianmac]

Damper fitted to-night.
Improved bass and mid range response, a little tighter.
Im now very happy with my arm I dont intend to do much more other than a rewire using silver stranded wire.
I need to move my deck through to my main system and run it on my ATC's to fully evaluate the bass and finalise the input settings on my phono pre

I will start to my other deck with a second CF coaxial arm and slightly modified headshell, I can take 2mm off the front which will reduce the weight and overhang. I will wire it with thinner silver wire (0.3mm) , fit an underslung counterweigh and improved stylus.
Away for the next week so get started on my return

[RickeyM]

First off, the stock tonearm tube on the Techie is very resonant. Having it well damped can only improve it. However, it can be taken to the next level

Photo of my prototype arm and headshell.
Ill get the handle and silicon damper fitted and do an evaluation with /without damping.
I need to make a new paddle and arm mount as the new arm is 0.5 mm larger than the std techie, 10mm in lieu of 9.5mm[IMG][/IMG]

On the CF/aluminum tube arm I did, the aluminum tubing was a very snug fit into the CF tube. This was from an idea presented on this forum by Qwin (many, many thanks). I took the easy way out and bought a headshell from the 'bay but because the headshell end was so much lighter I had to add a headshell weight. I also installed upgraded tonearm wire at the same time. Not being able to do an A-B comparison, all I had to go on was "wow, this thing really sounds good now!". It really is a major step up over the stock tonearm tho'.

P.S. LOVE the new bearing

[Ianmac]

Nice to know one can buy a headshell, It makes this mod do-able for many.
What was the headshell type you found ?

I did follow up Qwins suggestion of a Linn Headshell but could never find one so to move on I designed my own.
When I get back next week one of the things Ill do is give precise dimensions for the bits I make with photos and sketches as I mod my second deck.
I must agree it really is a major step up over the stock arm.

[RickeyM]

Nice to know one can buy a headshell, It makes this mod do-able for many.
What was the headshell type you found ?

I did a search on eBay for "straight tonearm headshell" and found some ones that look like this.


The stub of the headshell fits tightly into the CF tube (8mm I.D.) so no adhesive is needed. I used a leftover piece of tubing on the headshell finger lift to carefully adjust the azimuth.

[alphaGT]

I did a search on eBay for "straight tonearm headshell" and found some ones that look like this.


The stub of the headshell fits tightly into the CF tube (8mm I.D.) so no adhesive is needed. I used a leftover piece of tubing on the headshell finger lift to carefully adjust the azimuth.

Perhaps a tiny screw to prevent it from twisting? To preserve your azimuth?


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[dimkasta]

Nice Ian

[RickeyM]

Perhaps a tiny screw to prevent it from twisting? To preserve your azimuth?


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Trust me, it's in there tight enough that it's not going to twist. The azimuth isn't going to change unless you forcibly change it. I didn't glue it in place in case I had to adjust it at a later date. About a year and a half later after the initial set-up, it's still in exactly the same place.

[alphaGT]

A snug fit. Looks great! Inspires me to try some of my own ideas.


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[CableMaker1]

Photo of my prototype arm and headshell.
Ill get the handle and silicon damper fitted and do an evaluation with /without damping.
I need to make a new paddle and arm mount as the new arm is 0.5 mm larger than the std techie, 10mm in lieu of 9.5mm[IMG][/IMG]

Beautiful work !!!

Any chance you can make a headshell for a stock 1200 arm?

[Khom]

Here is my damper (inspired by well known design): steel base and 'towers', brass bath; grinder, drilling press and soldering. Silicone 60000 cct inside. Gives significant soud improvements in all registerts - sound is more tight and clear.

damper_3.jpg