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Old 9th March 2009, 03:40 PM   #1121
remeron is offline remeron  Malaysia
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Default vsps pcb

hi ahaja,
visited the polish forum and wondering are you selling the pcb and components?
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Old 9th March 2009, 06:11 PM   #1122
ahaja is offline ahaja  Poland
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>remeron
Hello
I will know on friday maybe next monday if I have any free set of them. Then I'll give you an answer.

That was our group buy.
Full set: Phonoclone + VSPS + PSU + parts.

Regards K
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Old 10th March 2009, 01:51 AM   #1123
remeron is offline remeron  Malaysia
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@ahaja:
cool..do let me know if you have any available full set i could buy off you.
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Old 20th March 2009, 12:25 AM   #1124
ahaja is offline ahaja  Poland
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>remeron
I sent you an email.
Regards K
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Old 21st March 2009, 12:33 PM   #1125
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Hello northernsky,
the breaker of the flat is conservative... 3KW is a lot. You would have an oven, washing machine and two current source amps to adequately blow this.
You can change this to an industrial type. See Schieder Electric products which will actually give you more headroom.

BTW: I am a little disapointed in the performance of the Phonoclone. I have tried a jfet stage loading, better PSU, batteries etc. The problem is that in this design there are OpAmps and these are too loud to be used for "hifi".
Anybody have the same experience?
Cheers,
MV
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Old 25th March 2009, 02:04 AM   #1126
jermo is offline jermo  Canada
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Default noise

My VSPS didn't used to make noise, but now there is a hum that is very loud when my turntable isn't plugged into the preamp and still obvious when the turntable is plugged into the preamp. Also I don't know how grounding turntables is supposed to work but there is a ticking noise that comes from the table even when it isn't plugged into the wall. Both the ticking noise and the hum get louder when I don't ground my turntable to my stereo amp but are still there when I do ground it. Do you have any Ideas why I'm having these problems? Thank you!
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Old 25th March 2009, 04:51 PM   #1127
jermo is offline jermo  Canada
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Default to clarify

It's loud when nothing is grounded, it's very loud when the turntable out isn't connected to the vsps it's still there but much quieter when everything is connected and grounded to a common ground. and this is a ticking and a humming, the ticking has always been there through two record players whether they are on or off but that hum hasn't
thanks
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Old 25th March 2009, 10:55 PM   #1128
jermo is offline jermo  Canada
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Default sorry to multipost

if I put my hand close to the circuit the humming goes up.
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Old 26th March 2009, 02:56 AM   #1129
Akita is offline Akita  Malaysia
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Have you check the vsps schematic for correct wiring, maybe wire already loose, shorted to some place which is not suppose to be?

Do not cross your AC power cable with your signal line.

I have experience with a loud hum b4, but that time i miss connect the +12v to -12v terminal.

Since you said your vsps is working fine previously, the I suspect maybe the incoming signal grounding is loose or not grounded to 0v.
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Old 26th March 2009, 03:08 AM   #1130
jermo is offline jermo  Canada
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well I tried to ground everything, to my stereo amp and then to the ground, that includes the turntable and the vsps and that didn't really make any difference. I'm not talking an incredibly loud hum but it's definitely audible. the ticking is odd too, it's probably about 5 ticks per second and it comes from the turntable at all times even if it is unplugged.
I went through and re-wired the whole amp because it was pretty messy, I thought that was maybe causing some issues, it wasn't but now it's neater!
If I unplug the input into the vsps it makes a loud (loud) sound- is that normal?

thanks for the reply!
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