I found a random picture of a turntable online that looks like the kind of thread drive turntable Dertonarm would make. :)
Any idea who made that?
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Turntable speed accuracy
There is another thread (about the NVS table) which has a subordinate discussion about turntable speed accuracy and different methods of checking. Some suggest using the Timeline laser, others use a strobe disk.
I assume everyone agrees that speed accuracy is of utmost importance. What is the best way to verify results? What is the most speed-accurate drive method? And is speed accuracy really the most important consideration for proper turntable design or are there some compromises with certain drive types that make others still viable?
I assume everyone agrees that speed accuracy is of utmost importance. What is the best way to verify results? What is the most speed-accurate drive method? And is speed accuracy really the most important consideration for proper turntable design or are there some compromises with certain drive types that make others still viable?
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- 583 posts total
Nice shot Hiho, Never seen that turntable before? Intrigued by the armpod cylinder. Seems like it may revolve for different length arms and has multi-way fixing options? For the record Raul.....the Victor TT-81 was $300.00 but I doubt that it was able to 'burn' a hole in the wall like the TT-101 which cost the princely sum of $1500.00..........the best money spent on my system other than my speakers :^) |
Dear Nicola, You disappoint me. I thought you were such a thorough compatriot who lets nothing escape him and now I discover that you did not even 'click' on the video Link I previously attached for the Timeline? In it, you would have seen.......about half way through the video......where he drops the cartridge on the record and immediately.....the speed decreases? And this is only the beginning of the record. Not a heavily modulated passage? Can you imagine what happens with a really heavily modulated passage? And that turntable in the video has a very heavy platter. So here once again.....for your benefit Nicola....I attach the Timeline video for you to study. Please don't disappoint me :-) TIMELINE |
Halcro - you are being disingenuous. The Fat Bob has a stretchy elastic band for a belt and furthermore the drive from the belt is close to the bearing. By not driving the circumference of the platter a lot of purchase from the puny motor is being thrown away. I think you will find this is a classic German pisstake of the Harley Motorcycle, after which it was named, and which you are very lucky if you make it round a decent corner. |
- 583 posts total