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Post by Deleted on Aug 23, 2016 20:28:03 GMT
Im gonna be using a Systemdek 'II' from now but i must have access to Quick speed change without farting about taking the platter off every two mins as i use 12" singles exclusively, which vary in speed, many don't specify what speed they run at, some run at both speeds!! Does anyone know if the Systemdek 'VPI' PSU [you used to get with the 'IIXE 900'], will it work with the Systemdek 'II' TT? i see no reason why not just wondered if anyone had any experience..
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Post by ChrisB on Aug 23, 2016 22:07:46 GMT
You need one of those HFN/RR Flutterbusters!
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Post by stanleyb on Aug 24, 2016 15:07:15 GMT
Why not just get another of those TT and set each one to a different speed?
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Post by pinkie on Aug 24, 2016 15:41:25 GMT
Pretty sure they all run the same premotec 110v motor - as did the LP12, RP2 and 3 and a few others. The power supplies will be compatible. The VPI was a significant improvement. But DC conversions will be a level up from that - and allow you 2 speed.
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Post by Deleted on Aug 24, 2016 21:21:25 GMT
You need one of those HFN/RR Flutterbusters! Hi Chis Yes i did think about a flutterbuster but it's getting hold of one. I remember Mark [YNWaN] had a broken one but i doubt if he would part with it..
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Post by ChrisB on Aug 24, 2016 22:27:10 GMT
I used one on several AR turntables for a while and I thought it was good.
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Post by Deleted on Oct 5, 2016 17:35:45 GMT
Why is Hi-Fi such a flaming nightmare.
Managed to get hold of an Heed 'Orbit 2' power supply with speed change. Connected the deck to the Heed, Belt over the correct 33.3 rpm pulley. Powered up. Plays fine on both speeds but the 45rpm speed causes the motor to vibrate like mad [Long term motor damage]
That's all i want. Two options i see both what i really cannot be arsed with. Lower the Cap value on the Systemdek II' board or swap in a lare Rega Planar board . or see if i can get the 'Orbit 2' modified to an 'Orbit 1'. With the 'Orbit 1' you completely remove the original motor electronics & replace it with a supplied board.
I was under the impression & i think a lot are that these supplies work with all AC Airpax Turntables
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Post by pinkie on Oct 6, 2016 8:26:32 GMT
I'm not quite sure what the question was on the "pimping a PT" thread. I have never taken much interest in AC motors. Changing speed on a DC motor is easy - you just change the voltage. On an AC motor you need to change the AC frequency - so you end up with some sort of mains regenerator circuit - and usually claims about how much better the mains is. Of course, better mains DOES have a direct impact on an AC motor, but it always makes me smile that all the rim drive boys talk about the superiority of their Garrards and Lenco's mostly using bog 50Hz straight out of the tap I agree with Andrew, that if you go modifying decks, you never get your money back when you come to sell on. However, if you have an Orbit 2 why do you need to modify anything? I thought the Orbit 1 needed a capacitor change on the Linn board, but the Orbit 2 plugs straight into an airpax 110v motor without using the original electronics. But I don't have one, so maybe not. Vibration at 45 rpm? Sounds like a fault on the board, not the motor - although it depends how picky you are being. My old PT with the Matsushita motor was noisy - but similarly so at both speeds. You could hear it at the deck - but not a few feet away. Whilst I'm sure the golden-eared would have claimed an issue - it didn't bother me, or those like Sovereign who came to listen to it. Not suitable for mounting on the sub-chassis, but in a sprung design with the motor isolated from the record by the springs, like your Systemdek II, it shouldn't be an issue. You're right - a DC motor is likely to "improve" the performance, and if you don't like improved performance, that doesn't help. Equally raw mains from the tap either needs a pulley change or a cone like the rim drives use, cos AC motor speed is set by the frequency of the phase - and you can only get 50Hz out of the wall. I don't suppose any of that helped
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