On 6/26/07, Fred Cisin <cisin at xenosoft.com>
wrote:
The last
of the PS/2's had some strange designs.
I like that mechanical linkage running
from the front to a physical switch
at the rear. Now THAT had style.
The Amiga 3000 had that sort of thing, too... a latching pushbutton
mounted right on the PSU, activated by a pushrod and a button on the
front of the machine. I think at the time, I heard it was to satisfy
Some of the HP disk and tape 'shoeboxes' (9133J, 9142, etc) did something
similar. There's an SMPSU board that runs the whole deptho of the case,
with the mains input connector soldered to it (when the PSU is in place,
this lines up with a hole in the case). The on-off switch is also near
the back of the PCB with a plastic pushrod linking it to the button on
the front.
I've also seen stuff where noise could be a problem (audio and test gear)
which has the switch at the back, near the mains input connector and PSU
input circuitry, and a pushrod to the front. Here, I ususpect the aim was
to cut down loaise pickup, not necessrily to meet safety requirements.
-tony