Re: Function of component in flash tube trigger circuit?

Sam Goldwasser <sam@xxxxxxxxxxxxxxxxxxxx> wrote in message
news:6wskx4demz.fsf@xxxxxxxxxxxxxxxxxxxxxxx
"N_Cook" <diverse@xxxxxxxxx> writes:

With 2 compact camera xenon tubes in series and a 1K, 10W dropper and
the 2
camera trigger surfaces connected together to the existing trigger
circuit,
it will reliably trigger the tubes to rather unstable continuous light ,
until I switch off , as 10W is not enough for continuous dropping.
I once triggered with the piezo gaslighter, proper trigger disconnected,
but
didn't work the next few times.
The owner reported it would intermittently not work before giving up
totally
, so I assumed it could not be a tube problem , well not gasifying
anyway.
What can have gone wrong with the original tube ? Does the standing
voltage
required to strike increase with age ?

Tubes can leak. :)

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Could you have a very marginal leak over a couple of months leading to
intermittant problems ?
I would expect any leak to manifest itself as total failure in hours at the
most.


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