Re: Replacement GS PSU Internals

[Polymorph <polymorph69@hotmail.com>]

On Sep 15, 4:18 pm, Drew <goggled...@gmail.com> wrote:
> On 14 Sep, 23:20, Steven Hirsch <snhir...@gmail.com> wrote:
>
>
>
>
>
> > A2Aviator wrote:
> > > Get any open frame switching power supply that is 40W or greater, (40
> > > being close to the OEM one) that fits within the dimensions of the
> > > box.
>
> > > There was a thread on here about a replacement Vulcan power supply
> > > module, that will work.  It's a fairly common off the shelf part.
>
> > > You need +5, +12, -5 and -12 DC.
>
> > > The one in the InnerDrive had no -5, they "floated" (literally) a
> > > regulator in midair inside the box and attached it to the -12 line.
>
> > Yup, that would have been me.  The MeanWell (great name) PT-65B is what I used
> > to restore a Vulcan GS.  It should fit the stock IIGS power supply case
> > without incident.
>
> > Available from Jameco Electronics for $29.95 + shipping.
>
> > You will have to rig up a -5V regulator, but hopefully in a bit more robust
> > manner than what Tony describes for the InnerDrive (that's sort of scary).  I
> > used a 7905T regulator - also available from Jameco for a couple of bucks.
> > That drops the -12V rail to -5V and provides the fourth voltage.
>
> > The MeanWell is rated at 65W (72 with forced air cooling), which should be
> > more than enough for even the most fully-loaded IIGS!
>
> > Steve
>
> > p.s. - While it does nominally fit the Vulcan case, you end up having to
> > unsolder a few components at the AC input end and reorient them (some on their
> > side, one choke airborne) using some bus wire and skill.  Very, very tight.
> > This should not be a problem with the GS supply since it has more room.
>
> Thanks everyone. I am in the UK, so will need to hunt down a supplier
> here, which i doubt will be a problem.
> Drew

Drew,

Funnily enough, searching for "MeanWell PT-65B" in Google turns up the
MeanWell website (1st hit) which happens to be in the UK, so I'm
guessing you'll have no troubles at all...  ;-)

Cheers,
Mike