The Victor TT101 is a completely different beast - have one that is partially overhauled, the complexity of this is quite unique. That plus the electronics are mounted on a flimsy large PCB with a myriad of wire jumpers. Most errors on these have been cracked PCB lanes when conferring with JP, our resident TT101 Expert :-) somewhere further up this thread I have made a list of suitable transistor replacements for it and have some of the un-obtanium IC's as well should anyone need any - had to buy 10 of them.
I'm hoping to get it working sometime but there is just too much to do
Good Listening
Peter
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Bestgroove,
You certainly have your work cut out for you :-) JP knows quite a bit more about these than I do. On vinyl engine theres a complete service manual available for download. Your photo only shows the electronics in the Bezzel, they main PCB is located below the motor and its with this large semi circular one the most issues have been, mostly with cracked PCB lanes.
Once I get mine spinning correctly Ill make a Plinth for it, but because of the original design of this Ill keep it in its original "UFO" shell. Ill make sure to post pictures once I get it built so you can atlas get some ideas of how to make yours.
Best of Luck
Peter
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Best Groove,
Lewm has stock of one of the unobtanium IC, I have of the other, so should you need one I can help too.
Best of Luck
Peter |
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Lohanimal,
does the platter spin if you turn it by hand ? if not then possibly it may only need a upwards or downwards adjustment on the screw at the bottom of the bearing, this is fairly easy to do.
Sorry for your bad luck
Good Listening
Peter |
Parrotbee - will you sell the wreckage ?
Thanks
Peter |
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Have had several of them - its a very nice machine - A thingap motor run by a industrial servo controller placed inside the motor unit. The ones I've had have all been slightly fast and adjustment is only possible via software. The motor it self looks very similar to the one pictured next to the TG231X specs in this link http://www.thingap.com/standard-products/Both Platter and Bearing on the VPI are VERY substantial, the bearing it self is the standard VPI Inverted bearing. Good Listening Peter |
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Lewm,
I really need to get my TT101 finished :-)
Good Listening
Peter |
Halcro,
Of course :-)
Good Listening
Peter |
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Richard
I believe the timeline shoots four pulses per revolution so it will be every 90 degrees - however if there is any deviation what so ever in speed in between the pulses it will be impossible for the dot to appear at the exact same spot over and over and over again.
The Roadrunner that I install in the DP80/DN308 machines use a magnet thats mounted on the perimeter of the platter, it passes over a sensor thats mounted to the plinth, a very precise oscillator/clock times the time it takes for the magnet to reappear at the sensor then calculates the precise PRM that's displayed.
The method that the electronic one that Mikey use I believe you replay a record with a 3150Hz tone recorded into it the the reproduced signal is listened to with a microphone and how accurate the 3150Hz tone is reproduced makes for the speed accuracy calculation - this probably is the most accurate method IMO if the 3150hz test tone in the record is a steady 3150Hz tone.
Halcro I'll try to do a video of the DP80 soon - I only have a one tonearm setup. Once I get another DN308 complete Ill do one of that one too, this possibly I could do with two arms, I still have two donors ready to be assembled - currently I'm sold out :-) these latest two will make a total of 8 units of this fabulous machines rebuilt/retrofitted.
Good Listening
Peter |
Ok Videos uploaded on Facebook on our home page PBN Audio Shows the GrooveMaster Vintage Direct DP80 with a SME 310 carrying a Ortofon MC Anna VTF 2.6 Gm playing an entire album side in this case 17 minutes and 28 seconds. The Timeline dot is 26 feet away from the turntable center - in the 17minutes and 28 seconds the dot moves about 3 inches forward , progressively , probably indicative of the 33.334 speed indicated by the Roadrunner Tachometer. Don't know how to calculate this but I'm certainly sure it is well within specs :-)
Once I get a DN308 online again Ill do the same experiment
Good Listening
Peter |
Lewm
The road runner is only for display - it has no control purpose - I opted for the inclusion the Roadrunner in the 308 because it has no strobe, keeping the DP80 in the Pro line I included it in that too, eliminating the strobe.
Good Listening
Peter |
Vinyl engine has the service manual for free download - there is a complete parts list in it.
Good Listening
Peter |
You can buy all of them at sources like Digikey or Mouser Electronics, both have reliable supply of quality brands like Nichicon for an example - buy the high reliability 105'C ones. Don't get too hyped up about what "brand" to use Nicihcon is a very high quality capacitor. It'll be impossible to make a list without a sample of the TT101 at hand as the LS (Lead Spacing) and physical size of the caps are needed to get the "right" capacitor to fit on the PCB Here is a link to 5806 choices of Nichicon Capacitors at Mouser https://www.mouser.com/Nichicon/Passive-Components/Capacitors/Aluminum-Electrolytic-Capacitors/Alumi... Best of Luck Peter |
Best Grove
Are you looking for a TT101 to use for parts for your TT101 - the motor in mine is working fine the control system still have some issues that I have not had the time to sort out - probably won't for quite some time - make me an offer.
Thanks
Peter |
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