You can't just purchase an off-the-shelf replacement needle - the cartridge must be rebuilt.    And the best, most economical service to use for this is

thanks for your reply. do you know where I can buy a off-the-shelf replacement needle?

Because I want to be able to rebuilt the cartidge, I want to ask the question again how to do this? 

I have many customers who purchase or comes to service with a broken mmc needle. I serve many B & O products, but has not serviced a mmc needle, but would like to provide service in mmc needle.

grateful for all the responses and info

Best regards

Jan

Many repairers would like to service MMC cartridges but it's not very easy.
The easiest thing would be to take a stylus off another quality brand and then transfer to the
tiny rubber support inside the MMC cartridge.
But do you have the method, skills and tools for getting into the MMC cartridge to do the job - and out again ?

Martin

Hi Martin, I actually do not have method, skills and tools. Ok I have been working for 30 years with the Service of TV and stereo, and maybe my tools enough, I also have a Carl Zeiss microscope Axiolab that yes can be good to have.

Which replacement needle would fit on mmc pickup?
What tools are needed?

With best regards

Jan

Here a pic of a MMC cartridge

The biggest problems are broken cantilevers and the elastomer suspension getting old. The needle (diamond) comes in different qualities and forms, depending on the MMC number, the cantilever comes in different materials, aluminum, platinum.

Your problem will be: First to disassemble the cartridge without doing any forther damage, second attach the new cantilever (with the correct needle inserted in the cantilever) to the micro cross, third, find the correct elastomer and attach that in the correct way. 4th, assemble it all correctly. 5th, test and measure for correct function. 

As I repair printing machines from 1 to 70 tons I cant help you with the tools, my smallest tool is a 7 mm fork/star wrench

Thanks it's actually a great photo, just as I was looking for. generally mmc20 needle less expensive to get in Sweden and maybe the needle from a mmc20 would fit on a mmc? correct me if I'm wrong.

A video of Der Meister (Axel) at work

MediaBobNY wrote:

 You can often find people selling defective MMC's on eBay for you to practice on. 

But now even broken B&O command silly high prices, unfortunately. I've seen people bidding on broken carts up to really preposterous amounts. 😎

Jan maybe you should try to contact the other Swedish members, and make with them a joint effort, there are members from Stockholm, Örebro and Halmstad as far as I remember. Some of these members must have cartridges to start on.