Re: Looking for DECstation 3100/2100 or DECsystem 5100

[Izumi Tsutsui <tsutsui%ceres.dti.ne.jp@localhost>]

> > Need for re-capping is probable (also because DEC used so many
> > "quarternary ammonium salt" caps like Chemi-Con low ESR 105 degC types
> > in nearly all their power supplies).
> 
>  PMAX's H7821 PSU is indeed badly affected, especially the output filter 
> Chemi-Con 1800uF/25V SXF parts, however the PSU has its base PCB mounted 
> upside down and consequently the components leads up, resulting in caps 
> being safe as long as the box has been stored in its operating orientation 
> (it's the seal breaking causing these capacitors to fail).  Daugthercards 
> have components mounted sideways, however their caps seem to be fine.

Just FYI,

I replaced my 5000/125 PSU with ATX one, based on info of this page:
 http://www.xanthos.se/~joachim/DS-ATX.html

(though I don't know PSU pinout for 3100 ones)

---
Izumi Tsutsui