THE VOYD TURNTABLE. POWER SUPPLY REQUEST HELP

[per gunnar]

Hi all Audiofilics. Sorry for my spelling, but I am in need of a power supply for my great Voyd turntable. I managed to loose it when moving to a new apartment, so now I`M F****D : ) No music for me uhhhh. It used to be a great setup with a Helius arm an a Audio Note pick up. Played like uhhhhh heaven.
So needles to say, in my new place with no sound is frustrating, and I cant afford a new on either. So does anybody have an idea if there is any replacement to get, maybe some companies makes these power supplies for other turntables that could be used or something???

Maybe a replacement for another product would work, its just a power supply !!! right, I don`t know anything about electronic guys, so don`t bite my head off.

I know these power supplies usually are made for more than one turntable, but I am an older guy, and suck at pc computers and stuff like that. I`m basically an idiot when it comes to computers, I have problems with them, they just don`t like me : ) BUT I NEED MY MUSIC, i miss my Stones, Osbourne, Van Halen, AC DC, Jazz, Soul, Tracy Chapman, Zeppelin and all the other gooood stuff, so please help my boys and girls.
Thanks in advance for any advice, I appreciate it.
PS: attached a pix, from internet, dont know how to send pix from my new Huawei phone to my old mac, will try sort it out and put in pix of mine turntable.

 

[myles]

https://www.hifiwigwam.com/threads/the-voyd-turntable-used-price-guide.110954/

there is a @Tony Whittle on the thread above who might be able to advise.

 

[per gunnar]

Wow, this was quick. I really appreciate it, so thanks : ). will check it out right now : )

 

[per gunnar]

Hi again, just read it. And its the same that I have, also pix of the power box, i assume this is whats called psu power supply unit i guess. And the brits should do better actually, it must be the ugliest power supply ever made. Just plain thin steel and ugly as hell, with cheep plastic knob and an switch looking like a toy for kids : ). but it play fantastic. Thanks anyway, appreciated : )

 

[sjs]

I know of five different versions of the Voyd power supply.

The earliest one I have seen was this hand built single phase unit:



Then came the wide version, black lid with cream face. The first version was single phase:



Then came the split phase version in the same box, initially with a cream front, later with a black front and a sticker saying it was a split phase psu:





Finally came the redesign casework with split phase supply:





First thing you need to work out is whether you had an early single phase supply, or one of the split phase supplies?

 

[gofast]

Hello. I'm trying to repair mine, and posted in another thread. But my PS, while looking like the last one, does not have the orange caps in front of the blue ones, (although the board has holes for them), so there are other variants too.

From what I have been able to figure out, there are 2 class B amps, which are fed by an AC frequency generating sinewave section.

The output has 3 wires: 1 neutral and 2 live with AC voltages.

The output of the amps on mine are: 33rpm - 16.09v/15.53v ac, at 24.99 hz on both legs
45 rpm: 15.54v/11.22v ac, at 33.82hz on both legs. (I measured the Frequency between neutal and each leg with my voltmeter. I have yet to figure out how to measure the angle between the frequency of each leg. Somewhere I read they should be at 90 degrees).

In the event that a power supply cannot be sourced, am I corrent in thinking that one could get the turntable running by using a cheap stereo amp, and 2 sinewave frequency generators.? Cheap sinewave generators are available on Amazon.

 

[sjs]

Hello. I'm trying to repair mine, and posted in another thread. But my PS, while looking like the last one, does not have the orange caps in front of the blue ones, (although the board has holes for them), so there are other variants too.

From what I have been able to figure out, there are 2 class B amps, which are fed by an AC frequency generating sinewave section.

The output has 3 wires: 1 neutral and 2 live with AC voltages.

The output of the amps on mine are: 33rpm - 16.09v/15.53v ac, at 24.99 hz on both legs
45 rpm: 15.54v/11.22v ac, at 33.82hz on both legs. (I measured the Frequency between neutal and each leg with my voltmeter. I have yet to figure out how to measure the angle between the frequency of each leg. Somewhere I read they should be at 90 degrees).

In the event that a power supply cannot be sourced, am I corrent in thinking that one could get the turntable running by using a cheap stereo amp, and 2 sinewave frequency generators.? Cheap sinewave generators are available on Amazon.

I replied to your other thread and asked if you could post a picture of your psu

Seems it is generally about right, I would suggest the 33rpm levels are about right, the 45 ram levels could do with tweaking up a bit to about 17 / 13 or so.

I havent seen a problem with the phase angle tbh

What is the problem you are having?

 

[gofast]

I replied to your other thread and asked if you could post a picture of your psu

Seems it is generally about right, I would suggest the 33rpm levels are about right, the 45 ram levels could do with tweaking up a bit to about 17 / 13 or so.

I havent seen a problem with the phase angle tbh

What is the problem you are having?

Hi. yes, thanks again for your replies. I posted pics on the other thread, after which I found this thread while exploring the site.

To recap, no pun intended, the PS was humming, so I decided to recap it. I also noticed that the 270R was burned. In the process of replacing the caps, I managed to splash some solder across the voltage regular next to the 270R joining 2 of the legs and causing a cap connected to it short, which in turn made the left-most 1.5R 2W resistor smoke. I finally found the short, and want to test the power supply entirely before trying it on the turntable. I am also waiting for new 1.5R 3W resistors to arrive, as they all measured 1.7R and 1.8R (and one is cracked from overheating).

My thinking is that if I damage the motors, its over, whereas, the PS board can be refilled with parts in the worst case. Anyway, I don't know that there is a problem. I am just being very cautious, and trying to be sure its safe to connect to the turntable.

Thanks again. Samir,

 

[gofast]

Hi. yes, thanks again for your replies. I posted pics on the other thread, after which I found this thread while exploring the site.

To recap, no pun intended, the PS was humming, so I decided to recap it. I also noticed that the 270R was burned. In the process of replacing the caps, I managed to splash some solder across the voltage regular next to the 270R joining 2 of the legs and causing a cap connected to it short, which in turn made the left-most 1.5R 2W resistor smoke. I finally found the short, and want to test the power supply entirely before trying it on the turntable. I am also waiting for new 1.5R 3W resistors to arrive, as they all measured 1.7R and 1.8R (and one is cracked from overheating).

My thinking is that if I damage the motors, its over, whereas, the PS board can be refilled with parts in the worst case. Anyway, I don't know that there is a problem. I am just being very cautious, and trying to be sure its safe to connect to the turntable.

Thanks again. Samir,

One more q: what is the correct value for the 2 fuses? When I got it, one was a 1.25A slow blow, and the other was a 1.25A fast blow.

 

[sjs]

Hi. I've attached pics after I've recapped it. Voltages: 33: 16.09/15.53 24.99hz on both legs; 45: 15.54/11.22 33.82hz on both legs.

I've not tried playing with the 2 pots. Will that restore voltages to make both legs match? Or will it change frequency to adjust speed?

Thanks for your thoughts.

The orange caps in my photo are in parallel to the big blue caps, so they arent vital to operation

I often find these two resistors appear distressed through heat, so I always replace them with a higher wattage version



I also put small heatsinks on the transistors and voltage regs on the board, see photos above

If the psu was humming, it will be something physical, rather than the board. check the mains tx, and whether it is bolted down properly and whether the U clamp frame is loose around the laminations.

I seem to recall the two pots change the output voltage of the two phases. I find that the two phases never exactly match, and that the two speeds do not exactly match, hence my suggestion about leaving 33 rpm alone, and adjust 45 rpm so that one phase is above, and the other below the 33 rpm values. You may be able to get the two phases almost the same at 33 rpm, then when you switch to 45 rpm one will be above and the other below the 33 rpm values. This seems to be "working as designed".

You cant change the frequency, they are locked in by the crystal chips and the small ST clocks.
btw the only irreplaceable parts are the two small ST chips next to the crystal oscillator chips, they were already redundant parts when the psu was being built, and are now totally unobtanium.

The only way to check the phase is with a 2 channel oscilloscope

I wouldn't worry about the fuses, either will be fine, it is if they blow you have problems

I have never seen a blown psu kill the motors, and that includes ones where both phases had failed and passed 24V dc to the motors

I cant think of any reason the psu cant get back working, and it sounds like yours does work, it just has some mechanical hum?

 

[gofast]

The orange caps in my photo are in parallel to the big blue caps, so they arent vital to operation

I often find these two resistors appear distressed through heat, so I always replace them with a higher wattage version



I also put small heatsinks on the transistors and voltage regs on the board, see photos above

If the psu was humming, it will be something physical, rather than the board. check the mains tx, and whether it is bolted down properly and whether the U clamp frame is loose around the laminations.

I seem to recall the two pots change the output voltage of the two phases. I find that the two phases never exactly match, and that the two speeds do not exactly match, hence my suggestion about leaving 33 rpm alone, and adjust 45 rpm so that one phase is above, and the other below the 33 rpm values. You may be able to get the two phases almost the same at 33 rpm, then when you switch to 45 rpm one will be above and the other below the 33 rpm values. This seems to be "working as designed".

You cant change the frequency, they are locked in by the crystal chips and the small ST clocks.
btw the only irreplaceable parts are the two small ST chips next to the crystal oscillator chips, they were already redundant parts when the psu was being built, and are now totally unobtanium.

The only way to check the phase is with a 2 channel oscilloscope

I wouldn't worry about the fuses, either will be fine, it is if they blow you have problems

I have never seen a blown psu kill the motors, and that includes ones where both phases had failed and passed 24V dc to the motors

I cant think of any reason the psu cant get back working, and it sounds like yours does work, it just has some mechanical hum?

Thank you. This is good to hear.

The latest photos did not post, could you try re-uploading them? Thanks.

 

[sjs]

you can probably see the larger resistors in a couple of the photos above

 

[gofast]

I adjusted the 33 volts to 16v on both legs. 45 fell out at 15.5 and 11. Took at deep breath and hooked up the Voyd. With new Bronze/Gold Omega.

 

[gofast]

Thanks for your help and hand holding.

 

[sjs]

I adjusted the 33 volts to 16v on both legs. 45 fell out at 15.5 and 11. Took at deep breath and hooked up the Voyd. With new Bronze/Gold Omega.

Looks good, hopefully also sounding good 👍

 

[gofast]

Looks good, hopefully also sounding good 👍

Yes, LPs are quieter than with the SME V. Also, hum from power supply is gone, so the recapping worked.