On 24/10/2016 00:30, "Jules Richardson" <jules.richardson99 at gmail.com>
wrote:
On 10/23/2016 08:02 AM, Adrian Graham wrote:
Hi folks,
Now that the bouncing has calmed down I've got a question about this here
triple output pretty ubiquitous power supply. This one had some burst caps
so naturally wasn't working and was probably why the machine it came out of
was taken out of use.
I've replaced all of them because why not, along with the .1uF mains
filtering cap that would also burst at some point and I still get low output
on all rails.
Low output in-circuit? If not, are you using a large enough dummy load
(probably just necessary on whichever output rail is deemed to be the main
one)?
Without enough load the regulation on switchers often doesn't work, and low
outputs are a typical result...
Yep, and I hear this all the time about Apple ][s, but the PSUs from the
last few machines I've done have worked without a load, and these PSUs also
normally work without load also. Maybe it's a US/UK thing. I'm learning as I
go on....
--
Adrian/Witchy
Binary Dinosaurs creator/curator
Www.binarydinosaurs.co.uk - the UK's biggest private home computer
collection?