30 Jun
2004
30 Jun
'04
9:02 a.m.
Phil wrote:
I think I've still got a power supply somewhere
that has a flaky 5V
regulator. Sometimes the regulator starts up fine, then runs for
hours. Other times it just sits there dead - strangely enough, drumming
one's
fingers on the casing usually gets the regulator to
start. I'll fix the
dry
joint on the PCB when my Farnell L30B bench PSU dies.
Speaking of which,
does
anyone have a service manual for the Farnell L30B
power supply?
One of these days, I'll build a custom power supply. At the very least,
the
L30B needs its switches, one of the meters and all of
the potentiometers
replacing. Oh, and I need to find two self-tapping (?) screws to hold the
side panels on. Bleagh.
Perhaps a crude fix for the flaky 5V supply would be to add 5 self tapping
screws to the area where the finger drumming works. Although I'm sure Tony
would point out that what's really needed are 4 self tapping screws and a
thumbscrew...
Bill