I Got Some Classic Cartridges Need Set-Up Advice

Dear Defelkai: +++++ " Grace F9 Ruby (got this one mounted now) " +++++++

fortunately for you an unfortunately for all your other cartridges that I owned.

As Doug say it well cleaning the stylus is almost the first step along cleaning the cartridge pin connectors.

Usualy the Ruby perform a little better loaded at 100Kohms with 100-150pf on total capacitance ( bt can work at the " normal " 47K ).

Here and today IMHO the Grace F9-Ruby is one of the best quality performer cartridges out there ( vintage or today ones and MC or MM type. ) and lucky you are to have it and running in good operation condition ( yes is better tha your 2M, no doubt about. ). Over time as you improve your TT/tonearm/phono stage you will note that the quality performance of your Ruby is way better than the one you are hearing right now even if you you for " the best of the " best in an audio system the Ruby don't be on " shame ".

The MC10 and 14Sa are a " so so " cartridges and the Carnegie and the Supex are good MC cartridges but not near the Ruby performance..

Btw, I run my Ruby at 1.25grs on VTF with a slightly postive VTA and no anti-skate, but yu have to decide about according with your system, ears and music priorities.

Regards and enjoy the music,
Raul.

I quite like the Grace f9. I am extremely curious if your f9 made it through a test lp with that weight setting.

Rauliruegas, do you mind if I send you a private message to discuss the Grace f9, I have a lot of questions.

I think the Madrigal cartridge might give the f9 a run for its money. I have never understood the concept of loading and i have not the slightest clue what to get my self in terms of a step up to go along side my tube phono. As a technical guy, maths student, I remain baffled by loading, yes this is a little embarrassing. I have read many articles and have only confused myself more. I suppose I should start another thread for that discussion though. I do want to purchase a step up and experiment with some moving coil designs.

Couldn't get my hands on a magic eraser yet, but I will report my findings. I think given that I have an abundance of cartridges that are clearly in need of cleaning, it forms an excellent means of testing this method.

For those who wish to make some suggestion in the way of step up, here is what I am using in terms of phono stage. I will warn you in advance it is a strange, but beautiful, phono section I am sure none of you have heard of (this makes the task more difficult, I know).

Soundtech Preamp one. The tubes are very unusual - 6CL8A I know nothing about them though I am eager to find out if I can put something else in there and improve things sonically. The loading impedence is the usual 47kohm. Though the guide says that "loading is set at 47kohms and less then 20 picofarads" and that changing these setting are not recommended. Perhaps this suggests that adjustments can be made; by someone who know what they are doing!

Gain= 56dB at 1khz phono.
Here is the interesting thing;

Input Impedence:
Phono----> 47kohms
CD-------> 2Mohms
Tape-----> 100Kohms

As per your suggestion, should I be running my Grace f9 through the tape in?

I am not sure if any of the other statistics are relevant to the discussion, but if you need more information before offering some advice ask away.

Hope to hear some more input, thanks a million guys!

Dear Dfelkai: You can email me any time you need.

Regards and enjoy the music,
Raul.