Apple II PSU

Doug Jackson doug at doughq.com
Wed May 12 00:44:49 CDT 2021


Dwight.

That smells like one of the Rifa caps.  Thick brown smoke.

Or was it one of the big electros?

On Wed, 12 May 2021, 12:59 am dwight via cctalk, <cctalk at classiccmp.org>
wrote:

> The rivets are likely more of a safety thing than an issue warrantee
> repair thing. The inside of a Apple II is intended to have user access. The
> switching supply has 300 to 400V DC inside. Definitely a potential lethal
> hazard.
> I hate those filter caps. I had one go at the last Maker Faire ( no more
> 🙁 ). I was trying out the Oregon trail when the nasty smoke started
> pouring out. Luckily we had a drill handy to remove the rivets.
> Dwight
>
>
> ________________________________
> From: cctalk <cctalk-bounces at classiccmp.org> on behalf of David Williams
> via cctalk <cctalk at classiccmp.org>
> Sent: Monday, May 10, 2021 5:34 PM
> To: General Discussion: On-Topic and Off-Topic Posts <
> cctalk at classiccmp.org>
> Subject: Re: Apple II PSU
>
> On 2021-05-10 18:18, Fred Cisin via cctalk wrote:
> > This area is so backward, that metric drill bits are considered
> > esoteric!
> >
> > 1/8" works OK, and will chuck in a Dremel.
> >
> > If it were a damaged screw, rather than a rivet, I would use a
> > left-handed drill bit.
>
> Which is pretty much what I ended up with. Surprised that this unit
> looks in such good shape inside, I expected to see it already exploded.
>
> Well time to get to work on it now and see if I can't get a working unit
> out of it.
>
> David Williams
> www.trailingedge.com<http://www.trailingedge.com>
>


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