richardkrebs

Responses from richardkrebs

Skeletal vs Plinth style turntables
Chris.We all have songs lurking in our past that in some way stay with us.Re the number crunching. The figure given was for a perfectly inelastic collision. If the collision was perfectly elastic the new train speed would be around 99.99996 KPH. 0... 
Skeletal vs Plinth style turntables
Chris.I re calculated the train thing. Assuming the followingMake it a 100gm sticky snow ball traveling directly towards the train at 100 KPH, to make things easier.Make the train, 1000 tonnes, also traveling at 100 KPHThe snow ball hits and stick... 
Skeletal vs Plinth style turntables
HalcroLet's say, just for fun, we replaced one of your very nicely designed arm pods with a block of foam rubber and we mounted the arm on it.The foam is just stiff enough to carry the weight of the arm.On your TT...This set up will play musicIt w... 
Skeletal vs Plinth style turntables
HalcroYes I get the arm pod high mass and footprint thing.AgainHow does passing the time line test prove that the arm pod is NOT moving.Cheers 
Skeletal vs Plinth style turntables
HalcroHumor me.Explain how passing the timeline test proves that the arm pod is not moving.Cheers 
Skeletal vs Plinth style turntables
Halcro.Ok to answer your criticism's of my posts Most DD TTs use a synchronous motor with some type of feedback or a non synchronous motor also with feedback.In each case, if all is properly functioning the motor is COMPELLED to rotate at the corr... 
Skeletal vs Plinth style turntables
Timeltel.Ha.. I marvel at the little things in analog that make big differences. Then we are trying to accurately measure an exceedingly little thing. I also marvel at the existence of intelligible music via a record given the "complications" that... 
Skeletal vs Plinth style turntables
I mentioned the mythical perfect TT earlier on this thread.item 2) was " Perfect dynamic dimensional stability" We have seen on another thread here how stylus drag can slow the platter. This even where massive platters and drive systems are employ... 
EMT direct drive and Technics SP-10 opinions?
Sdrsdrsdr.Thank you for your interest.For more info and contact details please go to my web page, krebsupgrade.com 
Skeletal vs Plinth style turntables
Dgarrestson.I have removed the motor housing on my MK3 from the original square chassis See the triangular shaped TT on my krebsupgrade.com web site.The rather flimsy naked motor housing has been laminated ( epoxy glued and bolted) into a machined... 
Skeletal vs Plinth style turntables
Some 20 years ago when I was building my current SP10 MK3 plinth, I spent a lot of time experimenting with glues.I was using CLD on the acrylic top plate. In this case a 15mm layer of lead was to be adhered to the acrylic.I initially thought that ... 
Skeletal vs Plinth style turntables
ParrotbeeI look forward to you posting pics of your creation. Good luck with the project. Also can you advise more details on the microscope isolators?AtmasphereDimensional stability.... You said it far better than IThanks 
Skeletal vs Plinth style turntables
Parrotbee.I think that good inspiration can be found if we look at how cutting lathes are constructed or outside of the industry, we can look at how milling machines are put together. These devices are required to hold a fixture precisely in place... 
Skeletal vs Plinth style turntables
My 2 cents worth.IMO a perfect TT needs to satisfy three criteria.1) Perfect DYNAMIC speed stability. No drive system meets this and passing the (in)famous timeline test is zero guarantee of dynamic speed accuracy, only average speed accuracy.2) P... 
Eminent Technology ET-2 Tonearm Owners
Hi Everyone. I hope that your Christmas is filled with music, family and laughter.It came early for me. Another ET2 and a Jethro Tull concert.Perfect!