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Micro Seiki MA 707 help please
Micro Seiki MA 707 help please
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Old 15th January 2019, 07:37 AM   #1
Cold Beer is offline Cold Beer  Croatia
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Default Micro Seiki MA 707 help please

Hi,
I recently bought Micro Seiki MA 707 tonearm without two weights. The slider one and additional weight are missing. So, I have a small request for the owners: If you have any of them, I would appreciate if you could measure weight and dimensions of them, so I could fabricate them according to originals.

Click the image to open in full size.


Thank you
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Old 15th January 2019, 10:30 AM   #2
merlin el mago is offline merlin el mago
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Webshop Micro-Seiki.nl
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Old 18th January 2019, 01:47 PM   #3
Cold Beer is offline Cold Beer  Croatia
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No help from them. They don't support diy people, only want to sell their stuff.
Anyone else? Help please
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Old 18th January 2019, 05:09 PM   #4
AVWERK is offline AVWERK  United States
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I have this tonearm somewhere in my mess. If I can find it, I will post the info for you.

Did Micro ever publish a graph on where to place the adjustable mass to a specific cartridges compliance ? Otherwise its just a guesstimate

Regards
David
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Old 18th January 2019, 05:47 PM   #5
academia50 is online now academia50  Argentina
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That photo belongs to me ! , but do not worry, I will not make any claim about it !



I remember that I had published the data you need using my wife's kitchen scales ....

Look here:

Moving Coil High Output for tonearm MicroSeiki MA-707- Vinyl Engine
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Old 18th January 2019, 06:17 PM   #6
Cold Beer is offline Cold Beer  Croatia
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Quote:
Originally Posted by AVWERK View Post
I have this tonearm somewhere in my mess. If I can find it, I will post the info for you.

Did Micro ever publish a graph on where to place the adjustable mass to a specific cartridges compliance ? Otherwise its just a guesstimate

Regards
David

Hi David, info that you are looking for can be downloaded from here:


Library Downloads - Vinyl Engine


@ Academia, - thank you man, i have weight now. If I did my math well, slider is around 14-15 gms, additional weight is 28 grams. Correct? Dimensions?

Last edited by Cold Beer; 18th January 2019 at 06:28 PM.
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Old 18th January 2019, 07:38 PM   #7
academia50 is online now academia50  Argentina
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Quote:
Originally Posted by Cold Beer View Post


@ Academia, - thank you man, i have weight now. If I did my math well, slider is around 14-15 gms, additional weight is 28 grams. Correct? Dimensions?
Yes, those are the correct weights according to the calibration of my balance .....

Let me take the right dimensions and I'll pass them to you.

What you have to do in the meantime is to try the type of thread that leads in the end, that surpasses my knowledge of mechanics ... I do not think it is a DIN step but of English standards, you can try with provisional screws trying to screw them gently in the arm housing (female) until you find the correct one.
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Old 18th January 2019, 09:16 PM   #8
Cold Beer is offline Cold Beer  Croatia
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No problems with thread. I can do metric, fine metric, or whitworth, no problem. It will be easy to find out when my tonearm arrives
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Old 18th January 2019, 10:48 PM   #9
AVWERK is offline AVWERK  United States
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It is 12.5 mm dia.
Side screw all the way in , the combined length is 19 mm


Regards
David
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Old 21st January 2019, 06:46 PM   #10
Cold Beer is offline Cold Beer  Croatia
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Quote:
Originally Posted by AVWERK View Post
It is 12.5 mm dia.
Side screw all the way in , the combined length is 19 mm


Regards
David

Black part made of metal like screw? Or plastic?
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