"Philip North" wrote in message
...

What colour is the light? Could it feasibly be some other form of
discharge
lamp? Neons are commonly used in cheap automotive strobes. The good ones
have
the same as electronic camera flash heads...what's that, xenon?


The light for looking at the strobe lines on my DD75 is orange. Does it
have
to be a special bulb? As long as you can see the lines clearly through the
little window does it matter?

Phil


It does matter, as in order for the light to 'strobe' at 50Hz, it needs to
be quick reacting - either an LED or a neon. On a DD75, it's a neon as far
as I can remember. All neons have about the same striking voltage of 75 -
90v, and are happy to run from the mains with any resistor from about 100k
up, so any neon that will fit, should do the job.

Arfa