richardkrebs
Responses from richardkrebs
| If I could afford, I’d purchase 100% Oswald Mills Audio gear @dover. You keep track of my qualifications and my alleged transgressions on A'Gon. Really? For the record. I hold a New Zealand Certificate in Engineering (electrical). Back then it was a 5-year part time or 3-year full time qualification from ... | |
| What is the “World’s Best Cartridge”? Dover The point I was making is that, contrary to what you said, properly set up SUTs do not exhibit problematic phase errors. Nothing more, nothing less cheers | |
| What is the “World’s Best Cartridge”? Here is an interesting article on SUT's. As can be seen from the plots, they are sensitive to loading on their primary and secondary windings, including capacitance. Get it wrong and their frequency response and phase curves aren't pretty. But get... | |
| What is the “World’s Best Cartridge”? Obviously this is an impossible question to answer in absolute terms. None of us have heard all the possible contenders. But...In your opinion, what is the best cartridge you have heard?' That can be answered. I have recently started using a S... | |
| Direct Drive As I said. "The new Technics" this includes the SL-1200GR. slotless, coreless, 3 phase. Some versions available right here in NZ for $3000. The reference class Technics SL-1000R is available here in NZ for $31,999 ( Under US$20,000 ) The Pione... | |
| Direct Drive A heavy platter like that used on the Final Audio, will lower the rates of deceleration, acceleration. High inertia reduces the magnitude of speed changes, it does not eliminate them. The connotations of the words "immediately and "suddenly" are... | |
| Direct Drive I just knew I should not have hit that bee hive with a stick😊 Correct, it is not cogging, as Lew and I have already explained. “ the problem is pulsing” let’s get this out of the way..,, An 8 pole motor would be 2 phase. This is not a linear tor... | |
| Direct Drive @clearthinker I think that we need to step back and look at drive alternatives a little more accurately. A well tuned PID controller will not constantly speed up and slow down, provided the motor controller architecture is well designed.. The ph... | |
| 2020 update : JC Verdier La Platine Ledoux Good luck with your project. Keep us updated on how it goes cheers | |
| 2020 update : JC Verdier La Platine ledoux. The motor I described is what I used in my design of the OMA K3 turntable. I found the constituent parts online after a 6 month search. I had to make the motor from these parts. Being direct drive, I have optimised the motor for low spee... | |
| 2020 update : JC Verdier La Platine AC vs DC. While I fundamentally agree with Dover, a few points he raises need expansion. Not all AC motors lock on to the field frequency. What we should be talking about is synchronous motors. In this design the rotor follows the rotating field... | |
| If I could afford, I’d purchase 100% Oswald Mills Audio gear @chakster A friend pointed me to this thread. I don’t know how I missed itre your comment about me posting details on K3’s design and development here… I don’t think that it would be appropriate, as it would effectively be a marketing exercise. No... | |
| 3 New UBER Decks - Is this Turntable's SwanSong? 🦢 Raul.Thanks for your comment. Yes the test record is what most of us use if we are to look at W&F, and as I have said earlier, it is useful to broadly differentiate between TTs. This despite the many variables in play. I also pointed out that ... | |
| 3 New UBER Decks - Is this Turntable's SwanSong? 🦢 Yeah, one day I will see the light and buy a CD player! | |
| 3 New UBER Decks - Is this Turntable's SwanSong? 🦢 Halcro. I echo Raul in that I'm happy that you are enjoying your TT's. After all, this is what this hobby is all about. Dover.Thank you for your sage input. Yes the arm/cartridge are part of the loop so they do impact the figures, Halcro has just ... |