Just completed a complete refurbishing / rebuilding of a Micro Seiki DDX1500 for a customer. These old machines are truly excellent. Did a speed check with the time line, over an entire album side the dot did not move from 23 feet across the room ! A nice little upgrade I did to was having the inside of the platter sprayed with Polyureah (Truck Bedliner), this silenced the bell like character of the platter nicely. PBN / Micro Seiki DDX1500 Good Listening Peter |
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Violin Denon DP80 is a pretty serious drive system. If you can find one it will need to be restored. I'm currently working on restoring 3 each DP3000, one DP2000 (they share the same motor) and one DP80, most definitely the best of them. The Micro DDX 1500 is very nice too but much harder to come by, I restored one of those a while back DDX1500Good Listening Peter |
Lewm
Certainly, we working on three of them, DP80, right now along with a DP75 two DP6000, one DP2000 and none less than 8 each DP3000. Let me know as soon as you are ready. On the Vintage Direct platform we can accommodate up to two arms, 12", 9" or one of each its basically up to you.
The rebuild includes a complete overhaul of the servo controller cards, a complete new power supply, including a new transformer, power filter etc.
Good Listening
Peter |
Hello Lew
peternoerbaek@pbnaudio.com or call 619-440-8237
Sounds like you have the electronic overhaul done, but the transformer.
Thanks
Peter |
Hiho, Have you seen these yet ? GrooveMaster Vintage DirectWebsite has the DP3 and the DP2 online, the DP6 is complete, and now working on the redesign of the DP80 which will be the DP8 in the Vintage Direct GrooveMaster lineup. Have about 20 of various models in progress at any time. From their maker Peter |
Thanks for the nice comments all :-)
I can still do the VPI based one, but the cost of the drive is quite a bit more than the Vintage Direct ones.
Pricing on the tables are $5500 for the DP3, $7500 For the DP2, $8500 for the DP6 and estimated @ $9500 for the DP8, with the standard 9" Jelco SA 750 on the DP2 and DP3, the longer SA750E on the DP6 and the DP8. We can do custom ones too, with up to 2 arms, mix and match in length brand etc. to your hearts desire.
Currently I'm making a DP6 with a Kuzma 4 point arm which will join the rest of the PBN Audio Equipment in the Ralston Listening Room and Library at the University of the South in Swanee Tennessee.
I will have all four models on display at RMAF in just a few weeks if you want to take a look at these, in my opinion, magnificent machines :-)
Good Listeniogn
Peter |
Technics SP10 Mk3No affiliation with listing party but thought you guys would be interested Good Listening Peter |
Lewm or Halcro
One of you mentioned a thin leather mat made in Japan, could you post a link to it please ?
Thanks in advance
Peter |
Got my Victor TT101 today, which have some speed issues - knew this when I bought it, so no surprise there. My initial impression is that its overly complex, especially compared the the Technics SP10MK2 and MK3, which I both own too, and have refurbished. Also especially complex if compared to the Denon DD tables I'm usually working on (DP3000, 2000, 6000 and 80)
The motor seems robust - however the SP10Mk3 and the Denon DP80 in my opinion have more solidly built motors.
It'll be interesting to get this one up and running correctly, Ill give an update once it get it fully operational.
Good Listening
Peter |
I'm working on a complete restore of a TT-101 too, should hopefully have it up and running in a week or so.
Lewm, I have found suitable replacements for most of the transistors in the TT-101, some of the original ones have the silver plated leads that oxidize, as many of the Toshiba Small signal transistors of that era did.
If you need a list of these Id be happy to send it to you
Good Listening
Peter |
Regarding the transistors used in the TT-101 I want to make sure that I can get the table working with the new ones installed, I'm still a little ways away form this.
Once I get it going I'll let you know the appropriate replacements
Good Listening
Peter
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Aigenga,
You tightened the bottom bearing well too tight, this one is used to set the height of the rotor inside the motor housing. You should re-examine this assembly. The reason that the bottom plug was secured with a "clay like material" was to prevent it form coming loose. tighten it just so much that you get a rub with the top cover on the motor on, then back it off a quarter turn, then secure it with a dap of nail polish or similar.
Best of luck
Peter |
In addition to the DP80, the SP10MK2 and 3 don't have any height adjustment via the bearing either.
Good Listening
Peter |
Lewm,
All the DD motors I've worked on, except the DP80, are made like this, the bottom cap that also holds the thrust plate for the bearing are used to adjust the rotor up / down with, which of course moves the platter up and down with it. If you screw this one too far in the the rotor can rub against the top cover of the motor. Of course this works in reverse too of you don't screw it in far enough the rotor can rub against the bottom cover of the motor as well.
What I do on all the tables I refurbish, which is quite a few by now, is to tighten the plug so the the rotor seats on the top bushing then back it of 1/4 turn before sealing it in place.
Hope this clarifies the matter.
Good Listening
Peter |
Aigenga and Lewm Moving the power supply out of the TT101 should be fairly easy as its treated as a separate entity inside the TT101, the transformer and the +5VDC and the +/-12VDC regulators are on a separate board which supplies the Motor control board via a 5 wire harness (J6). All this could be made into a separate external high quality power supply. If theres an interest in this I could possibly design and make one, just like I did for the SP10MK2. http://www.usaudiomart.com/details/649235872-technics-sp10mk2-upgraded-power-supply-by-pbn-audio/That being said the transformer in the TT101 is a torrid it is potted and mounted in a steel can so JVC took great care isolating it, if its worth the extra trouble i don't know. I don't think it would be a good idea moving the entire circuitry of the plinth, there's a lot to consider, the interface for an example (pushbuttons / LED / readout). This took quite some time to do on the Denon's that we offer as a product http://pbnaudio.com/audio-components/audio-turntables/groovemaster/groovemaster-vintage-directIm still working on repairing the TT-101 i bought, someone earlier had done a terrible job "re capping / repairing" it so theres some work to do. Ill keep everyone posted as to its outcome. I will make a nice looking plinth for the TT-101 once I get it functional. Tomorrow Ill finish up my SP10MK3 - looking greatly forward to that one. Good Listening Peter |
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Just procured a batch of the other unobtanium IC for the Victor TT101- IC813 the Toshiba TC5001 - had to buy ten of them so anyone should need one in the future I have a stash :-)
Good Listening
Peter |
Lewm,
I think the two IC’s that are the hardest to find are the SC3042 and the TC5001 The rest of them are readily available today, Counters, Flip Flops, etc. I did a check on the third CMOS IC IC602 (C14046) that one is available even as a surface mount today.
As far as "designing" a replacement board, I think this is not feasible, of course for someone with a lot of time one his/her hands, it should be do able.
The replacement transistors for the ones used extensively in the TT101 2SA628A and 2SC711A I have replaced them with the Fairchild KSA992 and KSC1845 - they appear to be working as suitable replacements - although I still have several issues with the salvage TT101 I bought, more to follow on that.
Good Listening
Peter
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Tim, (Pryso)
Once you have your table recapped you can bring it out here and I can do the above adjustment for you.
Good Listening
Peter
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Guys, its pretty simple, from the main Audiogon page, not the forum page we are on now, go to the Explore tab under which theres a sub tab labeled member look up, enter the moniker you want to look up and hit search, then once the member is found click on the moniker to the left of the 2 feedback boxes and you will open a new screen on which there is the specifics of the member including a contact tab.
You guys are right its complicated :-)
Good Listening
Peter
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Hello Lewm This one is the one I just finished on Saturday, this is one amazing table. Total weight with the Steve Blinn large Isopeds, (highly recommended btw) is 88 Lbs This plinth is also available for the Mk2, below is one that I recently delivered to a customer, this one had the Stillpoints Ultra 6 for footers, also highly recommended but more than 3 times the cost of the Steve Blinn Isopeds https://systems.audiogon.com/systems/4909The Victor is a work in progress :-) have not had the time to look at it for the past week or so - have you got yours up and running, if so how do you like it ? Good Listening Peter |
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Driveman, can make any plinth you'd desire - but you will gain much more from removing the DP80 from its tin pan. This is what I do with the DP80's http://pbnaudio.com/audio-components/audio-turntables/groovemaster/groovemaster-vintage-direct/pbn-d...For the Victor TT101 ill make something similar to what I make for the Technics platform as its much harder removing it from its top plate with all the electronics mounted in the bezel around the circumference - sh should you choose to keep the Denon in its platform Id recommend something like that, remember that you will need a 12" arm in this scenario - a 10" is too short and will interfere with the 14.5" diameter of the platform. https://systems.audiogon.com/systems/4909Good Listening Peter |
Ddriveman, The DP80 is a very nice machine especially when retrofitted into a GrooveMaster plinth, which can easily be customized to accommodate two arms, it'll be a large machine especially if you want to use 2 ea. 12" arms. Because of the size of the platter I'd recommend at least 10" arms, the DP6000 and the DP80 have larger platters than the DP3000 and DP2000, which is why I supply the DP6 and the DP8 with 10" arms and the DP3 and the DP2 with 9" arms. As far as a comparison between the Technics SP10 Mk2 compared to the DP80 I would state they are about even as far as performance, the SP10MK3 is in a different league altogether. Now if I could just get a hold of a DP100 :-) I did a full restore of the Denon DN308 a number of years ago - that was a fantastic machine but rather large, below a link to a picture of this machine. The motor for comparison is about the size of a gallon paint can. http://audiokarma.org/forums/index.php?threads/one-mother-of-a-turntable.180085/This now resides with a fellow audiophile, kftool, whom has his system listed here on Audiogon. https://systems.audiogon.com/systems/723Good Listening Peter |
Lewm,
Unfortunately the metal casing that house the electronics on the TT101 is larger in diameter then on the DP80 (DP80 =10.5" Diameter) (TT101=11" Diameter).
I'll be making a very nice plinth for my TT101 maybe you want one too :-)
Good Listening
Peter |
Lewm,
TT101 or SP10MK3 ? Which is better ?
Good Listening
Peter |
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Lewm,
What does the "Krebs mod" consist of ?
Thanks in advance
Peter |
JB0194,
Excellent, looking forward to hearing your observations on the platter - it appears very well made.
Good Listening
Peter |
A Technics SP10MK3 Japanese Version in need of an overhaul was just sold on Ebay for $ 50 short of $5K, guess folks are starting to pay attention to these magnificent players.
Good Listening
Peter |
Lewm,
Guess I got a Super Deal on SP10MK3, it was however in pretty rough cosmetic condition, and of course all the electronics needed upgrading as well - and I do agree with you its a magnificent table.
Good Listening
Peter |
JB,
Great to hear, thanks for the update.
Good Listening
Peter |
Lewm
Most likely the bearing is adjusted too tight, loosen the screw in the center bottom just a little and your noise will go away. The bearing pushes the rotor up against the top cover.
Best of Luck
Peter
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Lewm,
From your description the bearing is adjusted just a smidge too low, its sudden occurrence could stem from that the screw is not "locktited" into place once the correct setting was found - if your table is "nuded" you should be able to adjust the screw slightly with the table running to find the correct setting.
Best of luck
Peter |
Lucky enough to procure not one but TWO Denon DN 308 Direct Drive tables from Mexico. Now there is a DD table, had one some years ago which I restored, its now spinning Records at kftool s place on the east coast. These two will be "GrooveMastered" too, somewhat of a challenge as the motor is the size of a gallon paint can but I'm sure I can figure out something aesthetically pleasing. Good Listening Peter http://pbnaudio.com/audio-components/audio-turntables/groovemaster/groovemaster-vintage-direct |
Norm,
If you need I have a US Voltage transformer for the TT101 - I don't think Ill make more then the one I have - I had three transformers made for them so I have stock should you decide to refurb yours
Good Listening
Peter |
I have not had the time to complete the TT-101, its rebuilt but have a counter problem that with the help of JP we might just have solved just last week.
Other than focusing on production of all the other fun Audio Equipment we make I just last week got delivery of my Denon DN308-F broadcast tables (2 of them) that I'm going to spend some time on too. Thinking a large Slate plinth 4 - 5" thick on a solid aluminum platform possibly with some Still Point or similar isolation between the two, or a Minus K platform ? with the aluminum stand housing the electronics and possibly one of our PXi phono preamps as well. Suggestions from everyone greatly welcomed, if you were to own a no compromise DD table what would you like to see on it ?
Ill let you know as soon as I have it (TT101) done - with the counter problem hopefully solved it'll be sooner rather than later.
Good Listening
Peter
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Yes surely - if were lucky it use the same transformer as the TT101 give me a call on Monday
Good Listening
Peter
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Totem - where is this TT101 located ?
Thanks
Peter |
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Ken,
The DN308 is a quite substantial machine and I'd state its performance is well above anything I've ever listened to and owned including the SP10mk3. It weighs in at 140 lbs. The sound is very robust and speed is super accurate and stable.
In this current batch there are 8 units and they have all been sold. It grew from initially 2 units to 8, this includes the one I refurbished in 2006 but kept in its original console format. I showed the plans to the customer I sold this to and he immediately wanted his redone too.
The top and bottom plates are made from T6061 tool plate 1" thick, on the bottom plate all the electronics are mounted, power inlet is in the bottom too. The top and bottom plates are bolted together with 5 ea 8mm x 140MM stainless steel cap screws, this sandwiches the hardwood frame which is 1.125" in thickness. The 3 footers are custom made Steve Blinderman large Isopeds.
The electronics are refurbished with new caps and everything is re-calibrated to exacting specs.
To keep the turntable "in touch" with its origin I've maintained the original Stop and Play buttons as well as the speed selector dial. In addition theres a machined pocket on the rear top where the original serial number tag is bolted in place.
Ive added a Tachometer, the Phoenix engineering Road runner, why have such an amazingly accurate machine if you can not show it off :-)
I may make more of these, however the DN308 is extremely rare they do pop up on occasion but with only about 1650 units made they are hard to find. Retail pricing on the GrooveMaster Vintage Direct DN308 Professional would be in the $30K range.
However, the DP80 was made in much larger quantities and I've designed a Plinth for it veery similar to the DN308 with a top plate from 1" thick T6061 tool plate. The bottom is HDF inset in the Hardwood frame, it'll feature Steve Blinderman's small isopeds for footers.
The electronics are again completely refurbished and re-calibrated to exacting specs. I've eliminated the variable speed feature, which Ive found no one use anyway. A roadrunner Tachometer is built into the top plate as well. Retail pricing on the GrooveMaster Vintage Direct DN80 Professional is projected to be $9995.
Good Listening
Peter
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Rwwear, The last link on your DN308 post was made into this one :-) https://systems.audiogon.com/systems/6431#&gid=1&pid=12 the last picture. This one is originally from 1983and is number 472, the oldest of the 8 units I have procured, the youngest is from 1993 and is number 1608, have seen an auction in Japan for number 1628 so the supply of these is very limited. Good Listening Peter |
RWwear, So far I have procured 8 of them and I'm constantly looking for more - just picked up another one last week - so if you want to get on the list let me know. I know of two more located in Japan this person had 3 from which I bought one so far - the possibility of getting these two exist. Good Listening Peter Added a new photo of the next one Im working on https://systems.audiogon.com/systems/6431 |
Lewm,
Reason being that the DN308 is a very large machine, overall dimensions are 23.5W x 18.5D x 9.5T weight is 140 lbs. I did toy around with the layered wood approach it just became too big IMO. Its a VERY substantial machine as is both Top and Bottom are made from 1" thick T6061 tool plate. Arm boards are replaceable - however because if its size, the platter is 14" Diameter, only 12" arms are useable, the 14" Kozma 4 point can also be incorporated, have been on one and another with 2 each of the Kuzma's are being discussed with a potential customer.
I'm making a plinth for the DP80 also using the design of the big Brother the DN308 with a 1" thick T6061 Aluminum tool plate on top but a HDF bottom incorporated into the hardwood frame. This will be the GrooveMaster Vintage Direct DP80 Professional.
Good Listening
Peter |
https://systems.audiogon.com/systems/6431Pictures of the GrooveMaster Vintage Direct DP80 Professional uploaded to the virtual system Specs as follows Dims 19.25” W x 15.25” D by 7.75” H (to top of platter)Weight Apx 55 LbsSpeeds 33.333 and 45.000 RPM @ 0.002%Bi Directional Servo Speed Control System 2” Ball Bearing Vibration Control FootersUp to 2 10” tonearms can be mounted Good Listening Peter |
Theophile,
Possibly, however these are Vintage DD tables and the OP of this tread specifically discuses the possibility that no repair of such is possible should they break. My postings should clearly communicate that repair certainly is possible of the machines, by me and a lot of other knowledgeable folks that have contributed to this long tread.
Good Listening
Peter
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Theophile,
You do note that all, but the first the above posts with links to the Systems page are answers to questions and requests from other contributors to this thread ?
Good Listening
Peter
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