Will do. Thanks again, Chris!
Best regards,
Walt
Best regards,
Walt
Eminent Technology ET-2 Tonearm Owners
Where are you? What mods have you done ?
I have been using these ET2's for over 9 years now.
I am still figuring them out and learning from them. They can be modified in so many ways. Bruce Thigpen laid down the GENIUS behind this tonearm over 20 years ago. Some of you have owned them for over 20 years !
Tell us your secrets.
New owners – what questions do you have ?
We may even be able to coax Bruce to post here. :^)
There are so many modifications that can be done.
Dressing of the wire with this arm is critical to get optimum sonics along with proper counterweight setup.
Let me start it off.
Please tell us what you have found to be the best wire for the ET-2 tonearm ? One that is pliable/doesn’t crink or curl. Whats the best way of dressing it so it doesn’t impact the arm. Through the spindle - Over the manifold - Below manifold ? What have you come up with ?
- ...
- 2371 posts total
Hi Walt - it depends. Is it a beige colored cabinet like in the links below - newer - as opposed to the older orange cabinets ? I would not worry about the hours since they are hospital grade. They are all used to a certain hours / time period then decommissioned - leases etc.. A wholesaler will go into the hospital and buy XX of them with varying usage. These are the sellers on ebay and the like. If possible ask the seller to open the back panel and send you a picture of the insulation. This is the part that can start decaying on the older orange ones. Is the insulation in good condition - not discolored or frayed, some of it falling off ? If possible ask the seller to put a load on it - hook something up to it - and verify that the internal regulator turns smoothly. On older units this can get sticky from water hardness and not being used. This is an issue but not a showstopper,as you can just close it (the regulator) permanently - this puts the compressor on full out PSI mode - and add an external regulator instead. But the external one will cost another $50. If the insulation is in good shape and the regulator is good then the $250 range is a good price. imo. They are $2500 us dollars new. ***************************** Shipping For shipping it’s like a floorstander speaker so needs to go on a pallet. I would do a search on medical whole sellers in your area. You might find one available locally or within driving distance and save on shipping. As I am in Canada..... I got soaked on shipping costs for my 2000 plus duties/customs - the shipping ended up costing 4 times the price of the great deal I got on the unit. But my 2000 was like a ... picture a Barn find, very few hours and even the 12 volt battery was showing a full charge. But I am still using the 3500 - keeps on ticking. 8^0 The Compressor/Pump can be as we know an audiophile journey on its own. We have discussed here how to test ones pump.... for noise going into the audio system. ******************************************** Timeter Aridyne System- how it works - from their site The system works by drawing and filtering ambient air through the air intake. The air is compressed to 80 psi and then cooled via the internal cooling coils which condense the moisture from the compressed air. The moisture is collected in the condensation trap and automatically drained into the evaporation tray. The cool, dry air is then regulated to 50 psi and delivered to medical devices through multiple outlets. the 3500 model is $2500 us dollars new https://www.global-medical-solutions.com/Allied-Healthcare-Timeter-Aridyne-3500-High-Flow-Medical-Ai... the 2000 model is $3000 US dollars . It also has battery backup - so your turntable will slow down but your tonearm will not be affected saving the record from skips in a power loss situation. https://mfimedical.com/products/allied-healthcare-timeter-aridyne-2000-medical-air-compressor This article shows the differences between them http://www.alliedhpi.com/images/z10-00-0081.pdf Cheers Chris |
I recently was returned to AMC (the analogue manic clinic.) It started with staring at the cold black turntable and dust accumulating there on. We know that seeing dust & cleaning is dangerous to many in average predominantly female persons, leading to well known manic episodes. Where at some places undefined flying objects appear, in the latter case defined objects disappear in a flying mode. Including sometimes dear and important things. (I admit havin some messie traits). The more serious part: I had a fight with my London pony on the ET2.5 which has its damping trough inabled, but with moderate eddy current damping provided by a small magnet (far away from the wiring). So I still intend.ed to model the complex spring mass interactions of the ET2 & ET2.5 and I asked Bruce Thigpen (once more) for the +/- precise masses involved with the ET2 & ET2.5, and quote his given data for completeness of infos on this board: - original aluminum wand mass: 12 grams - Joint insert into wand is 6.5 grams - ET-2 spindle 23.5 grams From measurements, roughly: the lowest vertical effective mass is - about 12 gram, original wand with 7 gram cartridge, - Vertical effective mass increases about +2 grams for the 2.5 spindle. The lowest measured horizontal effective mass is - about 30 grams, original wand and 7 gram cartridge The second part in my next post: |
"Do the wrong thing!" Having trouble with my London cartridges mechanical behaviour, having tried quite long, I concluded that I simply wasn’t able to apply enough damping, the thing was "meta-stable", although there were quite a few elements of greatness. So, what do to do? I had as an interim replacement of my MC phono stage a Lehmann Black Cube SE in use for my London, set to MM cartridges. So staring into my not (...) empty cartridge drawer, I recognized a slightly dusty beauty lurking within: A B&O MMC1, bought from a B&O dealer, seeing it’s lonesome place in a window, this was maybe beginning of the ’90s. So out with London, in with B&O. Well... magnesium wand, ET2.5 spindle and whatever counterweight will be: "The wrong thing". From time to time refusing correctness is indicated by your mental health officers: Yes, the horizontal resonance is around 3Hz, the vertical considerably higher but not visible. As you may have noticed in this thread, I have my counter-orthodox opinions in case of low horizontal resonance frequencies (not in case of vertical resonance). Theories besides: This combo works absolutely *phantastical*, it digs deep into the grooves and is highly musical as well as very uncoloured and naturally liquid. It also has deep and quick bass. It stands out of the way in communicating the music and constantly bringing this amazing slightly shuddering feeling when you enter different worlds from LP to LP, hearing amazing musical, timbral, expressive nuances. So my quintessence is: From time to time, try things that don’t work, as far as anybody knows. And be amazed by the unexpected joys of reality vs. correct thinking. It is indicated for mental health - and for sheer pleasure & guilt. The MMC1 is one great cartridge – as probably the MMC2 is too - and it works in whatever ET combo, I have to assume. This is probably thanks to the B&O engineers being *the* kings of precise engineering and damping in turntables/cartridges. Remember: The actual (eternally circulated) knowledge about optimal tracing and suspension tuning / damping of turntables comes from... the B&O stable. What great lab! PS 1: Soundsmiths SMMC1 is the ca. successor of the MMC1, except that it uses a "massive" ruby cantilever instead of a small saphire tube (with superbly mounted paratrace diamond in the original MMC1). PS 2: It "feels" to me like every cartridge with saphire cantilever has/had a very special quality I very much like: The Sumiko Talisman S, my "special" Jan Allerts MC 1Mk2 (and MC2 Finish) cartridges, as well as the MMC1. It is a grainless coherence and ultra-quickness through the whole range through midrange into upper treble. It’s a cantilever that kind of disappears from the mechanical formula. |
- 2371 posts total