richardkrebs
Responses from richardkrebs
| Direct drive vs belt vs rim vs idler arm Ct0517Thank you for that. I gave up trying to build the website myself, so employed a professional.The triangular TT is my own design and build using a SP10 MK3 motor. New platter added 12 years ago. I have used this TT to develop my upgrade. Arm ... | |
| Direct drive vs belt vs rim vs idler arm Mosin.Thanks for this. A great read.It seems that there is a common theme driving all small audio manufacturers and that is "passion" | |
| Direct drive vs belt vs rim vs idler arm Lespier/ MosinYes it must be very expensive to cover the R&D plus tooling for a complety new TT and motor.Mosin, perhaps you can give us some insight on this, from within the industry, when developing your spectacular TTs? Not DD I know but it... | |
| Direct drive vs belt vs rim vs idler arm Dover.Are we not getting off topic here? My reasons for dropping the Goldmund motor as a mule for my TT project will in no way advance this thread. It is an average motor with an above average speed measuring mechanism. Further you have described ... | |
| Direct drive vs belt vs rim vs idler arm Lewm. I am sure that the Monaco's controller is very advanced in the way it responds to the platter speed signal. What the JVC ( Goldmund Studio ) motor demonstrates however, is that its speed sample rate is not unusually high. | |
| Direct drive vs belt vs rim vs idler arm HalcroYes it is a JVC motor. After I sold my Goldmund, I had plans to build a TT based around this motor. It was an easy purchase from JVC in Japan, at the time. The project was shelved after further research on motors. | |
| Direct drive vs belt vs rim vs idler arm Have just pulled apart an old Goldmund motor I have lying around.I am impressed all over again with its speed sensing design.It has 164 slotts and 176 magnetic poles ( north plus south) in the speed sensor assembly, per revolution. This gives 14,4... | |
| Direct drive vs belt vs rim vs idler arm 'Ultrasonic' They are possibly referring to the speed measuring sample rate. It is a long time since I looked at the Goldmund speed sensor, but from memory, it was around 34,000 samples per revolution. This is not an unusually high number for a sp... | |
| Direct drive vs belt vs rim vs idler arm Dover.We have covered servo control in depth in this thread.I do not understand why some people are so down on this approach. It is just feedback. Sure it has to take into account inertia, complaince and torque. These very same elements are presen... | |
| Direct drive vs belt vs rim vs idler arm Ct0517Re the Bear that tries too hard. He doesn't have to been so stressed.I can help him relax. | |
| Direct drive vs belt vs rim vs idler arm Ct0517.In my view both types of feedback have a distinct sound in their "as built" states. Firstly I need to state two things.1) I have a commercial interest in this topic, so you may want to take that into consideration.2) How a machine is design... | |
| Who needs a MM cartridge type when we have MC? Rauliruegas.re SUT's you may want to check out the Stevens and Billington TX-103, out of the UK. While specs only tell part of the story, it does seem to be to be pushing the envelope of performance. They are in curent production with either coppe... | |
| Direct drive vs belt vs rim vs idler arm KetchupI will take your figure as correct. I did the calcs long hand while waiting in a Cafe for a Flat White ( that's a coffee to those from the Northern Hemisphere)Yes the number is small and if you extend the distance out further, which we are ... | |
| Direct drive vs belt vs rim vs idler arm Gentlepeople I have been pondering our obvious passion about speed stability with respect to different drive systems. If we put aside the potential for all of us to view this topic thru somewhat colored glasses, due to our purchase choices, we can... | |
| Direct drive vs belt vs rim vs idler arm HalcroDo you have any theories other than eccentricity as to why the results with the Feickert are inconsistent? Thanks |