On 2017-07-30 12:18 PM, Jules Richardson via cctalk wrote:
On 07/30/2017 10:59 AM, Ian Frost via cctalk wrote:
Any body any experience in fixing these old Acorn PSUs - or managed to
source alternative modern supplies?
There wasn't anything "special" about them, in that the outputs were
typical for "small computer with a hard disk" (i.e. +5V and +12V at a
few amps, -5V and possibly -12V, main regulation done on the +5V rail,
"hard start" via physical switch).
I expect it's possible to find a modern PC PSU in some kind of slimline
form-factor which will physically fit (and rig the soft-start so that it
powers up as soon as AC is applied).
FWIW I recently discovered this little PCB which looks darn useful for
power control + breakout (ignore the RPi part).
https://hackaday.io/project/20963-mini-atx-psu
https://www.tindie.com/products/tomtibbetts/piryte-mini-atx-psu-for-raspberry-pi/
> I expect the current limits for the
different rails are printed on the side of the VMS PSU's frame, so
as-good-or-better should be fine.
...
cheers
Jules
