"charles" wrote in message
...
In article , Rod Speed
wrote:


"charles" wrote in message
...
In article , Brian Gaff
wrote:
There is an old rule in DIY electronics. Your wonderful device works
fine when its a spiders web of bits joined by wire on a workbench, but
as soon as you put it into a case things start to not work quite
right.

a rule of professional electronics is "First - check the power supply"

Not with a brand new device which behaves the same way with a second
copy. That wont be the power supply.

could still be - a design fault, for instance

Very bloody unlikely with the power supply with a brand like that.