Hello
I am making a phono cartridge as per following specs:
1) micro ridge stylus with sapphire cantilever
2) rubber dampers
3) Mild steel gold plated poles/ yokes
4) 0.027mm pure coper enamelled wire
5) samarium cobalt magnets
6) cartridge body/base made of titanium.
i have finished making MC cart but it is sounding very harsh.
Does anybody have suggestions.
I am making a phono cartridge as per following specs:
1) micro ridge stylus with sapphire cantilever
2) rubber dampers
3) Mild steel gold plated poles/ yokes
4) 0.027mm pure coper enamelled wire
5) samarium cobalt magnets
6) cartridge body/base made of titanium.
i have finished making MC cart but it is sounding very harsh.
Does anybody have suggestions.
Attachments
Measure the frequency response of your home made cartridge and compensate with a selective RIAA pre amp.
That you've attempted this deserves an applause! Hopefully you will be able to measure it and resolve your sound problems.
Yes, can you describe in more detail your process of designing and building the cartridge?
Many try building tone arms and turntables, but few tackle cartridges. Looks very good.
Some use a load capacitor in parallel with the 100R resistor load.
Many try building tone arms and turntables, but few tackle cartridges. Looks very good.
Some use a load capacitor in parallel with the 100R resistor load.
What type of damping material is the coils pressed against and the compliance ?
The type of elastomer and it’s long range wear pattern will dictate to a large extent
how it will sound.
You might have to experiment here to get a proper balance since everything else looks very nice !
The type of elastomer and it’s long range wear pattern will dictate to a large extent
how it will sound.
You might have to experiment here to get a proper balance since everything else looks very nice !
Suspension wire tensioning? Tip azimuth? Zenith?
No idea really, but I applaud the effort. 👍
When you get it sorted out, pls let us know your findings.
No idea really, but I applaud the effort. 👍
When you get it sorted out, pls let us know your findings.
Dear Sir
thanks for the reply, we can adopt that method to match to a particular system but i want the cartridge should sound good on any system. You suggestions are most welcome on material/technique to improve the cartridge.
Dear Sir,
thanks for the reply, I also have doubt about suspensions. I am contacting the stylus company for the same. Lets see, what they reply.
Dear Avwerk,
Thanks for the reply,
I did so many experiments to make it balance to the sound.
In the beginning, i tried very soft silicone to damp but i didnt get success. I then mixed very fine fly ash with zero harness silicon rubber ( on heating) and it worked good but not as good as i wanted.
Can you name any elastomer which is easily available in market. In india, it is very difficult to get desired items.
Regards
Tariq
If you are still working on it, would like to have a .wav file recording of how it sounds vs a standard cartridge. Compare the .wav file in Audacity?
This is wonderful. That the initial effort is not perfect should be of little consequence. With a base unit assembled now the tuning can begin.
Have you made any progress since this was first posted?
eso
Congratulations on such a difficult task!!
I think "very harsh" is subjective, i would suggest you to upload a recording of the cartridge playing a well-known track. Can I suggest perhaps "Thriller" by michael jackson. Also, indicate the vertical tracking force (VTF) used, you should try different VTFs, perhaps from 1g to 3g in 0.5g increments. In this way people can listen and offer more help.
How are you ensuring the diamond stylus is properly aligned in azimuth and also in VTA or SRA?
I would suggest you, since you are doing this for the first time, to use a spherical stylus, only because they are less sensitive to misalignment.