Goldmund Studietto repairs

Ok. Goldmund is not common. I remain hopeful :)

Maybe Michael Fremer knows   .......  Great analog, record guy.

The Spectral has its history of advocates, and has a history belonging to both Scan Tech - Lyra.

Speak to VAS NY Inc, this Service has a history of working on the Cartridges, a Inspection of your Cart’ carried out by VAS will supply better Cart’ related info, than any can offer to you on a Forum.

I’m sure he can work wonders with the TT as well??, have a look at some of his Analogue related work on Facebook, as well as read the reports from satisfied Customers on forums.

As a service VAS NY Inc, is one in a few services, that is not piggy backing a ride on the Cart’ Refurb Wave, that is seen more commonly adopted today.

From first hand experience, I have had exceptional good impressions made by using non OEM services, and using a Third Party Service to work with owned TT’s and a Cartridge.

I also have a very nice Thank You letter from a individual I did not know, with a Transfig' Proteus, that was needing repair, I was in with chance to buy it. Before I finalised the price, I encouraged the Vendor to discuss the Cart's condition with VAS. The rest is history, the assessment from the owner, is the Cart' is seemingly the best it has ever been when in the Groove doing its job.  

@pindac Thank you. I've just discovered George Meyer AV in LA. Seem excellent as well. Will be contacting both soon.

Steve Dobbins is at least geographically closer to you, is highly skilled, and is known for his work on turntables, not cartridges. You might also ask him.

As part of the Service Options Inquiry.

Do ask about the Platter Spindle Bearing Housing, making it known it is most likely a JVC QLA-75 Model.

As a Basic treatment, the Bearing Housing Internal should be thoroughly cleaned,  along with the Spindle, (Some have the witnessed tarnish on the Spindle lapped to a bright finish) ready to be coated in new lubricant.

My suggestion is prior to adding new lubricant, the Spindle / Housing can be reassembled and checked for any lateral movement between the Spindle and Bushes. Newly oiled parts will usually temporarily disguise the movement that could be present.

Lateral Movement is an indicator that the original fit between Spindle /Bush has slop, that has over usage degenerated to the present condition, or the original fit was quite tight as a tolerance fit between Spindle /Bush and has degenerated through usage, especially dry and unlubricated usage to the present condition.

Note: There are many many TT's, Vintage TT's, and especially Japanese Vintage DD TT's that have models from the main Brands that can't retain oil in the Bearing Housing, there is a leach out, usually to be found occurring at the Sump where the Thrust Assembly parts are found.

I have over the years been instrumental in offering up methods that have proved successful at preventing a lubricant from leaching out from a Bearing Housing.

The name of the game at this stage though, is to experience a Bearing Assembly operating with a low coefficient of Friction and if all goes swimmingly well, operate with an improvement to the true of the axis.

My experiences to date, is that on a Basic Bearing Housing Design, this is a condition that is going to be temporary but achievable.

A different grade of Oil can be considered  if the Bearing Housing is able to retain a lubricant fill of the Shaft, this will be beneficial to take up an excess of spacing if there is a detected slop. 

If there is no lateral movement detected, and the Bearing Housing is able to retain a lubricant fill of the Shaft, this will be beneficial to keep the critical interfaces within the Bearing Housing in contact with a lubricant, this is not too commonly discovered as a condition.

If the Bearing Housing is not able to retain a fill of fluid, or if the Volume of Oil added does fill the spacing between the Spindle / Bush, the improved effect of the added oil, will usually be short lived, as the oil will leach out of the critical spacings (Spindle Bush Interface) and eventually escape the Bearing Housing.

The Base of the Spindles Thrust Assembly will also benefit from an investigation. a Thrust Pads discovered with a deep indentation resulting from wear, will increase drag and increase noise/transferral of energy. 

Additionally the Thrust Ball or Spindle Base can be scribed as a result of wear, this surface type will cause noise / transferral of energy. Worn metal particulate from the Metal on Metal contact, especially as a dry contact will produce metal dust, that will fall to the sump, and have the opportunity to be abrasive to the parts at the Thrust Interface.  

There is plenty to read about overhauling / improving / upgrading Thrust Assemblies.

At this stage the aim is to freshen the tired assembly and attempt to avoid Metal On Metal Contact for as long as it can be maintained. With a bit of luck, methods can be adopted to improve in the short term on eccentricity of the Spindles rotation, improving the axis of the Spindle to be more true during rotations.

Eccentricity during Spindle Rotations being present, to keep its effect simple as a description, will have a effect on Wow / Flutter, as well as expose the Styli to forces not best for its optimised function.

The Electronics and Speed Control should be captured by a Specialist Service.

If avoidance of Metal on Metal and a True Axis during rotation does become a curiosity, there is a extension of discussion to be had at a later date, there is a Cottage Industry addressing such issues on TT's, as well as many DIY methodologies to be discovered.       

In the title of this thread, it is revealed that the turntable in question is specifically a Goldmund Studietto, not a JVC or anything else.  Steve Dobbins would know what to do and what not to do with the bearing.  Same applies to the servo mechanism. Dobbins is a recognized expert on the Technics SP turntables and has marketed his own revision of the SP10 Mk3, as a separate product under his own brand, "Kodo the Beat".  If Steve would work on a Studietto, it could not be in better hands.

Well there's a Can of Worms, if ever there was one.

I would put a wager on a Goldring Studietto being from the stable of a Japanese Vintage DD TT. I'm sure another will highlight exactly which Stable as well. 

I'm sure there was an abundance of Spare Parts for TT's when the Japanese Brands were visualising larger sales volumes from the CD Market, which they did very well from.   

No one would ever believed there was Tobacco used in Mummy Bindings, until Guess What, Nicotine and Cocaine were both discovered.

Never say Never, or was the CIA formed much much earlier in History, learning its notoriety claim for the establishing of easement programmes for these narcotic types ? 

@lewm , Thanks. I've checked his site. Very interesting. I'm sure not interested in 'triflers'. Nice.

@ptss 

The early Goldmund Studio/Studietto used a Papst motor.

The later Studio/Studietto uses a JVC DD motor.

The tonearm is a dog - you would be better off replacing it with a pivoted arm - much less hassle.

Thanks. Ant difference in the motors? How did you learn this?

Was in the trade 30 years ago. The JVC motor is more reliable - same motor as used in the JVC QLA75 tt. you can find service manuals for that TT and/or use a JVC QLA75 as a donor.

If the Papst motor goes I think you can retrofit the JVC motor but if I recall correctly a bit of landscaping is required for it to fit.

The TT is definitely worth repairing if possible - I actually preferred the Studietto to the Studio in some ways.

The Studietto with something like an Audiomods tonearm ( not too expensive, but punches well above its weight ) would actually be quite a good TT.

If the motor is going, all you need to do is service it. Clean and lube the bearing.

Services by Marks repairs all kinds of gear that no one else can fix.  I know for a fact that he personally owns 2 Goldmund Studio linear tracking tables.   <[email protected]>