power supplies
2015-01-21 by rbhall7ice
Hi-
Would anyone like to recommend power supply replacements for older units (terminal strips/cinch-jones style)?
Are switching supplies alright?
Thanks for any help-
Thread
power supplies
Re: power supplies
2015-01-21 by John P
The standard Serge power supply uses a linear Condor or similar
unit, carefully adjusted to +/- 12V.
Modern switching units MAY be ok but the cheap ones throw out tons of noise and have mediocre regulation.
A good off-the-shelf linear unit is not expensive and performs much better.
Modern switching units MAY be ok but the cheap ones throw out tons of noise and have mediocre regulation.
A good off-the-shelf linear unit is not expensive and performs much better.
Show quoted textHide quoted text
On 1/20/15 7:50 PM,
rbhall7ice@... [SergeModular] wrote:
Hi-
Would anyone like to recommend power supply replacements for older units (terminal strips/cinch-jones style)?
Are switching supplies alright?
Thanks for any help-
.
Re: power supplies
2015-01-21 by robert hall
Thank you very much
From: "John P johnp299792@... [SergeModular]" <SergeModular@yahoogroups.com>
To: SergeModular@yahoogroups.com
Sent: Wednesday, January 21, 2015 4:56 AM
Subject: Re: [SergeModular] power supplies
To: SergeModular@yahoogroups.com
Sent: Wednesday, January 21, 2015 4:56 AM
Subject: Re: [SergeModular] power supplies
The standard Serge power supply uses a linear Condor or similar
unit, carefully adjusted to +/- 12V.
Modern switching units MAY be ok but the cheap ones throw out tons of noise and have mediocre regulation.
A good off-the-shelf linear unit is not expensive and performs much better.
Modern switching units MAY be ok but the cheap ones throw out tons of noise and have mediocre regulation.
A good off-the-shelf linear unit is not expensive and performs much better.
On 1/20/15 7:50 PM,
rbhall7ice@... [SergeModular] wrote:
Hi-Would anyone like to recommend power supply replacements for older units (terminal strips/cinch-jones style)?Are switching supplies alright?Thanks for any help-
.
Re: power supplies
2015-01-21 by robert hall
Also-are just 12 volt supplies alright or does it need to be +/- 12volts?
-Thanks for the education
Re: power supplies
2015-01-21 by John P
You need +/- 12V and ground.
On Jan 21, 2015, at 11:50 AM, robert hall rbhall7ice@... [SergeModular] <SergeModular@yahoogroups.com> wrote:
Also-are just 12 volt supplies alright or does it need to be +/- 12volts?-Thanks for the education
Re: power supplies
2015-01-21 by Steve Ridley
> Would anyone like to recommend power supply replacements for older units (terminal strips/cinch-jones style)?How old is your Serge? If it's 1970s, you may need a supply with +12v, -12v and +6v.
Steve
Re: power supplies
2015-01-22 by microtonalsynthesis
Switching supplies are NOT alright for Serge. Use a linear power supply.
{Spam?} Re: [SergeModular] Re: power supplies
2015-01-24 by Jon Kjell Seljeseth
I have been using an Astrodyne MDMC-0306 switching PSU for some years.
- ultra stable - low noise - :-) http://www.astrodyne.com/
Jon Kjell
At 09:13 23.01.15, you wrote:
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Switching supplies are NOT alright for Serge. Use a linear power supply.
Jon Kjell Seljeseth
Iceland (+354) 561-5683 (+354) 866-8640
Norway (+47) 909-64094
Re: power supplies
2015-01-25 by robert hall
Thanks-well 4 panels are from 1980 approx. and the other 4 i had Serge make around '86.
they all have red,black and white wires except the panel with the n-voice controller which has a green lead
-which i believe is 5 volts.
I'm trying to learn about supplies and it seems that linear - (which according to the fellow who checked over the
old supplies and is basically a mcintosh audio specialist are "not used anymore" ??) - supplies are better
for low noise and low ripple,analog circiuts, etc. - but now it seems that maybe a good quality switching supply
might work. ?
Mouser does seem to sell some linear supplies with +12/-12 but i don't see any from condor which is what was
first suggested (though there were a few low-power one's on ebay)
Please keep the suggestions coming as it's really appreciated.
It was tempting to paste some links but i didn't want to set off a spam alarm.
Thanks again
Show quoted textHide quoted text
From: "Steve Ridley spr@... [SergeModular]" <SergeModular@yahoogroups.com>
To: SergeModular@yahoogroups.com
Sent: Wednesday, January 21, 2015 1:24 PM
Subject: RE: [SergeModular] power supplies
To: SergeModular@yahoogroups.com
Sent: Wednesday, January 21, 2015 1:24 PM
Subject: RE: [SergeModular] power supplies
> Would anyone like to recommend power supply replacements for older units (terminal strips/cinch-jones style)?
How old is your Serge? If it's 1970s, you may need a supply with +12v, -12v and +6v.
Steve
Re: power supplies
2015-01-25 by John P
About the power supply specs... I think there are a few different
basic issues at play.
1. Ripple and noise should be minimal... I think down in the 100 microvolt range IIRC.
Reason being, at 1V/oct, ripple of a few mv will be audible and you don't want that. Also, switching power supplies
generate high-frequency noise; older or el cheapo units bleed the noise into your audio path, raising the noise floor. I think newer,
pro-quality units may have solved this problem but don't count on a generic PC supply to do you any favors.
2. Long-term voltage regulation should be rock solid. Again, this comes down to tuning. If you spend hours setting up a patch
and go back to it the next day, you want it to remain in tune despite the mains voltage wandering, air conditioner kicking in, etc.
1. Ripple and noise should be minimal... I think down in the 100 microvolt range IIRC.
Reason being, at 1V/oct, ripple of a few mv will be audible and you don't want that. Also, switching power supplies
generate high-frequency noise; older or el cheapo units bleed the noise into your audio path, raising the noise floor. I think newer,
pro-quality units may have solved this problem but don't count on a generic PC supply to do you any favors.
2. Long-term voltage regulation should be rock solid. Again, this comes down to tuning. If you spend hours setting up a patch
and go back to it the next day, you want it to remain in tune despite the mains voltage wandering, air conditioner kicking in, etc.
On 1/25/15 1:51 AM, robert hall
rbhall7ice@... [SergeModular] wrote:
Thanks-well 4 panels are from 1980 approx. and the other 4 i had Serge make around '86.
they all have red,black and white wires except the panel with the n-voice controller which has a green lead
-which i believe is 5 volts.
I'm trying to learn about supplies and it seems that linear - (which according to the fellow who checked over the
old supplies and is basically a mcintosh audio specialist are "not used anymore" ??) - supplies are better
for low noise and low ripple,analog circiuts, etc. - but now it seems that maybe a good quality switching supply
might work. ?
Mouser does seem to sell some! linear supplies with +12/-12 but i don't see any from condor which is what was
first suggested (though there were a few low-power one's on ebay)
Please keep the suggestions coming as it's really appreciated.
It was tempting to paste some links but i didn't want to set off a spam alarm.
Thanks again
Show quoted textHide quoted text
From: "Steve Ridley spr@... [SergeModular]" <SergeModular@yahoogroups.com>
To: SergeModular@yahoogroups.com
Sent:! Wednesday, January 21, 2015 1:24 PM
Subject: RE: [SergeModular] power supplies
> Would anyone like to recommend power supply replacements for older units (terminal strips/cinch-jones style)?
How old is your Serge? If it's 1970s, you may need a supply with +12v, -12v and +6v.
Steve
Re: power supplies
2015-01-25 by zaum
Power Ones are excellent if the model meets your specs. They are considered by most to be equal quality-wise to Condor. Many serious modular systems use them today, though of course they need to be wired properly and checked, they don't come as a drop in solution.
Though of course an alternative is to phone Rex Probe at STS and ask for advice. Doubt he'd give general DIY advice but I'm sure he'd have info (Apologies I missed the beginning of the thread)
nick kent
Though of course an alternative is to phone Rex Probe at STS and ask for advice. Doubt he'd give general DIY advice but I'm sure he'd have info (Apologies I missed the beginning of the thread)
nick kent
Re: power supplies
2015-01-25 by Antonio Tuzzi
STS PS4 PS6 and PS12 "ARE" PowerOne !
spedito dal mio serge system STS
spedito dal mio serge system STS
On 25 Jan 2015, at 18:46, zaum zaum@... [SergeModular] <SergeModular@yahoogroups.com> wrote:
Power Ones are excellent if the model meets your specs. They are considered by most to be equal quality-wise to Condor. Many serious modular systems use them today, though of course they need to be wired properly and checked, they don't come as a drop in solution.
Though of course an alternative is to phone Rex Probe at STS and ask for advice. Doubt he'd give general DIY advice but I'm sure he'd have info (Apologies I missed the beginning of the thread)
nick kent