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mechanical resonance in MMs
mechanical resonance in MMs
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Old 24th April 2018, 01:16 PM   #1601
anatech is offline anatech  Canada
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mechanical resonance in MMs
Hi Bill,
Could you run another single wire for ground through the arm? They must have grounded the arm at the pivot end, so that shouldn't need work.

-Chris
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Old 24th April 2018, 01:26 PM   #1602
billshurv is offline billshurv  United Kingdom
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mechanical resonance in MMs
The SIII has the connector at the pivot end not trivial to add a wire. I need to check if there is metal to metal contact inside the plastic connector. It is a kooky design.
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Old 24th April 2018, 04:04 PM   #1603
anatech is offline anatech  Canada
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mechanical resonance in MMs
Hi Bill,
Hopefully you will find something you can ground a wire to and simply run another to the headshell. This would allow you to remain fully balanced.

-Chris
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Old 24th April 2018, 04:14 PM   #1604
billshurv is offline billshurv  United Kingdom
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mechanical resonance in MMs
yeah. This one is a challenge tho.
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Old 24th April 2018, 04:17 PM   #1605
anatech is offline anatech  Canada
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mechanical resonance in MMs
Hi Bill,
Yuck, that one looks near impossible!

I have one thing to say to you on this. You did buy it.

-Chris
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Old 27th April 2018, 03:20 PM   #1606
billshurv is offline billshurv  United Kingdom
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mechanical resonance in MMs
I wanted this. It's close to the ultimate low mass high compliance combination that the late 70s produced. Total effective mass 4.5g. Wonderful pointless madness. It does look nice tho.

Also in my research (although no intention to buy another cart at the moment) I found the technics EPC-205II L. This is a low inductance version made 73-76 and has the somewhat incredulous spec of 40mH and 30R for the coil. So 2L-R works. This could be a candidate for the lowest noise MM front end using a transamp. two tens of a gnatfart improvement is pointless, but fun to find the limit
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Old 28th April 2018, 05:07 PM   #1607
ThomasA is offline ThomasA  Sweden
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Interesting thread, I have not been able to go through it all. With respect to test records, there is really a need for better ones:

Dropbox - Test records and frequency response measurements.pdf
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Old 28th April 2018, 05:25 PM   #1608
billshurv is offline billshurv  United Kingdom
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mechanical resonance in MMs
We have a thread on test records as well. It's currently in cat herding mode, but we hope to get something eventually
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Old 28th April 2018, 05:31 PM   #1609
ThomasA is offline ThomasA  Sweden
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Quote:
Originally Posted by billshurv View Post
We have a thread on test records as well. It's currently in cat herding mode, but we hope to get something eventually
I noticed that... so much to read.
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Old 28th April 2018, 05:32 PM   #1610
billshurv is offline billshurv  United Kingdom
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mechanical resonance in MMs
Sorry about that, we've had a lot to discuss. Bit like Ents
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