Intellabeam lamp not striking + issues

Hiya,

I bought 6 intellabeams in varying condition (from car-crash-like to just about working).

On the few that work, the lamp strikes are not always successful. It seems like they don't like striking if warm. How can I go about diagnosing/fixing the problem?

Also one of them, when lit, makes a very loud buzz. I couldn't find anything loose in the unit, so I presume it's the transformer that is on its way out? It's one of the intermittent ones, and when it hasn't struck, there is no noise (except for the motors initialising).

I presume High End have circuit diagrams for the bulb circuitry? And a spec for the bulb so I can judge what's falling short?

Thanks a lot

Jody
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