Synth-DIY Yahoo! Groups Archives

OMni 2 Powersupply repair cont...

2003-09-11 by Ed Hallborg

Robert,
 
Here's the only thing I found so far that meets your specs.  http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2556349463&category=32720
 
Is this or something like it usable?  I have done some google searches and found the whole power supply boards but they seem like they are putting out too many amps.  I don't know if thats a problem or not---also the ones I found on mouser.com are about 100$ apiece.  That's fine if it will work.
 
Regards,
Ed

Message: 1
Date: Sat, 6 Sep 2003 08:36:27 -0700 (PDT)

Show quoted textHide quoted text

From: Robert Benchic 
Subject: Re: Subject: Re: another broken omni 2

Ed, 

You would be replacing the entire power supply
eliminating the need to repair the regulator in the
original. The connections would be easy, positive and
negative 15 volts DC with a common ground and 115
volts AC. I can find you a supplier and appropriate
model if you like. 

-Bob


--- Ed Hallborg wrote:
> Thanks Robert,
> 
> Can you tell me anymore about these? I'm a bit
> confused as too whether they will take care of the
> -15 voltage regulator problem in the omni 2. Do
> they bypass the regulator or something. Is their a
> special procedure to hook them up?
> 
> Thanks,
> Ed
>
________________________________________________________________________
>
________________________________________________________________________



---------------------------------
Do you Yahoo!?
Yahoo! SiteBuilder - Free, easy-to-use web site design software

RE: [vintagesynthrepair] OMni 2 Powersupply repair cont...

2003-09-11 by masada wilmot

Hello all,

 

I'm a fairly new lurker on here but I feel the need to pipe in on this
thread. As I recall, the power supplies on the Omni are a simple standard
design with no exotic components. If the transformer is still OK, replacing
the active components would not cost more than $5 and you would not have to
install a mechanically different subsystem.

 

I've just repaired a Quadra supply that was just a standard
723/op-amp/TIP110-115 circuit. I haven't looked at the Omni for quite some
time but I expect that it is the same. Am I missing something here that went
before?

 

mw

 

PS, a supply that is capable of putting out more amps than you need is
normally not a problem. However, beware the supplies that require a minimum
load on one rail to maintain regulation - usually switchers.

Show quoted textHide quoted text

-----Original Message-----
From: Ed Hallborg [mailto:ehallborg@...] 
Sent: Thursday, September 11, 2003 7:35 AM
To: vintagesynthrepair@yahoogroups.com
Subject: [vintagesynthrepair] OMni 2 Powersupply repair cont...

Robert,

Here's the only thing I found so far that meets your specs.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem
<http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2556349463&category=3272
0> &item=2556349463&category=32720

Is this or something like it usable?  I have done some google searches and
found the whole power supply boards but they seem like they are putting out
too many amps.  I don't know if thats a problem or not---also the ones I
found on mouser.com are about 100$ apiece.  That's fine if it will work.

Regards,

Ed

Message: 1
Date: Sat, 6 Sep 2003 08:36:27 -0700 (PDT)
From: Robert Benchic 
Subject: Re: Subject: Re: another broken omni 2

Ed, 

You would be replacing the entire power supply
eliminating the need to repair the regulator in the
original. The connections would be easy, positive and
negative 15 volts DC with a common ground and 115
volts AC. I can find you a supplier and appropriate
model if you like. 

-Bob

--- Ed Hallborg wrote:
> Thanks Robert,
> 
> Can you tell me anymore about these? I'm a bit
> confused as too whether they will take care of the
> -15 voltage regulator problem in the omni 2. Do
> they bypass the regulator or something. Is their a
> special procedure to hook them up?
> 
> Thanks,
> Ed
>
________________________________________________________________________

Vintage Synth Repair

OMni 2 Powersupply repair cont...

OMni 2 Powersupply repair cont...

RE: [vintagesynthrepair] OMni 2 Powersupply repair cont...

Move to quarantaine