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Old 12th June 2011, 11:21 PM   #6491
Salas is offline Salas  Greece
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7.73x2 Q5, 8.97x2 Q1, 8.99x2 Q2, 8.6 & 8.66 Q3. R2=100R for real MM.
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Old 12th June 2011, 11:50 PM   #6492
j45yip is offline j45yip  Singapore
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...thanks, salas.

Quote:
Originally Posted by Salas View Post
7.73x2 Q5, 8.97x2 Q1, 8.99x2 Q2, 8.6 & 8.66 Q3. R2=100R for real MM.
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Old 17th June 2011, 04:09 PM   #6493
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Quote:
Originally Posted by RCruz View Post
Did you try C2 = 47nF // 10pF ?
Finally by the moment ended C2 47nF & C3 15.283pF

Just for fun my modified Cart Denon DL103-R

Enjoy
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Old 18th June 2011, 07:41 AM   #6494
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Merlin

I recommend to handle the open DL103R very carefully.

It seems you already have some metal dust nearby the airgap:

Click the image to open in full size.

Once entered the airgap, the DL103R will begin to show strong distortion and therefore getting unusable.

Nearby impossible to remove in this case!

Franz
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Old 18th June 2011, 08:22 AM   #6495
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A bad example out of my collection:

Click the image to open in full size.

Some years ago, I handled this DL103 (complete with original body) on my dirty workdesk.

After that, the cartridge began to distort (sometimes more and sometimes less) and I replaced it, not knowing the reason for this "strange" fault.

Some years later I have seen the video from Thomas Schick, how to dismantle this cartridges and I applied it to this old piece to learn the procedure.

Surprize surprize!

I was not able to remove the metal dust without destroying the coils

Franz

Last edited by Franz Gysi; 18th June 2011 at 08:27 AM.
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Old 18th June 2011, 09:50 AM   #6496
AndrewT is offline AndrewT  Scotland
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Apply tiny drops of "Copydex" over the dust/grit/metal fragments.
As the glue starts to go off, it is quite easy to lift it with the debris. The glue has very low "tack" and peals off all hard surfaces easily.
You can do this two or more times to get around the whole perimeter. It causes no harm to go around again, until all the debris is removed.

Copydex is a type of rubber solution glue, generally white in colour, available in the UK for decades.
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Old 18th June 2011, 11:03 AM   #6497
RCruz is offline RCruz  Switzerland
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Quote:
Originally Posted by merlin el mago View Post
Finally by the moment ended C2 47nF & C3 15.283pF

Just for fun my modified Cart Denon DL103-R

Enjoy
how does it sound nacked ?
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Old 18th June 2011, 11:44 AM   #6498
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Quote:
Originally Posted by Franz Gysi View Post
Merlin

I recommend to handle the open DL103R very carefully.

It seems you already have some metal dust nearby the airgap:

Click the image to open in full size.

Once entered the airgap, the DL103R will begin to show strong distortion and therefore getting unusable.

Nearby impossible to remove in this case!

Franz
Thanks for advice Franz

Quote:
Originally Posted by AndrewT View Post
Apply tiny drops of "Copydex" over the dust/grit/metal fragments.
As the glue starts to go off, it is quite easy to lift it with the debris. The glue has very low "tack" and peals off all hard surfaces easily.
You can do this two or more times to get around the whole perimeter. It causes no harm to go around again, until all the debris is removed.

Copydex is a type of rubber solution glue, generally white in colour, available in the UK for decades.
Andrewt

Thanks for input, in Spain we have blue-tac but I'm not sure that can do the job but it's a possibility to try if don't do the job I will try "Copydex" or something similar


Quote:
Originally Posted by RCruz View Post
how does it sound nacked ?
Wow, a lot of more information, more air, less less coloured so needs to increase C3 I added 18pF to see what happens, I'll keep you informed.
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Old 18th June 2011, 02:12 PM   #6499
RCruz is offline RCruz  Switzerland
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So you clearly hear differences just by adding 18p in C3
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Old 18th June 2011, 03:07 PM   #6500
AndrewT is offline AndrewT  Scotland
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Copydex is a liquid.
It seeps in around the debris and surrounds it. That makes it easy to remove the debris, as the skin of partially set rubber film is peeled out. It does no harm to leave it a bit longer until all the film has set to clear, about 5 to 15minutes if thin enough and approaching 30minutes if you apply a big glob.
Blue tac is a solid and will not flow around (no capillary action). It also does not peel well and tends to leave some blue tac behind which will be difficult to ensure 100% of the blue tac. You still have the problem of the debris lying in the gaps that the blue tac has not surrounded.
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Last edited by AndrewT; 18th June 2011 at 03:30 PM.
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