On 26/03/2018 17:07, Pete Turnbull via cctalk wrote:
Except it's not a zener, or at least not anything like those [ones
Camiel and Bob suggested]. I took one out of another (working)
supply, and I can tell it has a forward voltage of 0.2V, so it's
presumably a Schottky diode of some sort. I
4B would be a 2.2V zener; 4A would be a 2.0V zener, so that’s odd indeed...
Camiel
On 3/24/18, 9:47 PM, "cctech on behalf of Pete Turnbull via cctech"
wrote:
After a recent power cut and a series of glitches as the power
If only! That question has been asked many times on SGI forums like
nekochan, for the Sony PSU (like this one) and also the Nidec. No-one has
ever claimed to have seen one, and the chances are Sony wouldn't ever have
released them.
Yea I was looking for the Nidec one for the Indigo, as mine
On 26/03/2018 17:39, et...@757.org wrote:
I'm hoping I don't have to breadboard a 1kV supply and find a lot of
multi-megohm resistors to try and estimate the breakdown voltage - and
then guess at the forward current rating.
Is it possible to get the schematics?
If only! That question has
I'm hoping I don't have to breadboard a 1kV supply and find a lot of
multi-megohm resistors to try and estimate the breakdown voltage - and then
guess at the forward current rating.
Is it possible to get the schematics?
- Ethan
--
: Ethan O'Toole
On 26/03/2018 16:08, Camiel Vanderhoeven wrote:
4B would be a 2.2V zener; 4A would be a 2.0V zener, so that’s odd indeed...
That's the idea I had...
Except it's not a zener, or at least not anything like those. I took
one out of another (working) supply, and I can tell it has a forward
4BSOD-123F MM1Z2V2SemtechZener diode
http://www.s-manuals.com/smd/4b
On Sat, Mar 24, 2018 at 4:47 PM, Pete Turnbull via cctalk
wrote:
> After a recent power cut and a series of glitches as the power was
> restored, one of my Indys suffered a PSU failure. It's a Sony
After a recent power cut and a series of glitches as the power was
restored, one of my Indys suffered a PSU failure. It's a Sony APS-81
171W unit, SGI P/N 060-0008-001. I've found half a dozen damaged parts,
and I've identified a 150R 1W metal film resistor (R135), two trannies
(Q105, a