[AMPS] Heater warmup time on *big* tubes

[Dave Kirkby]

Does  anyone have any idea on the length of time that big (i.e. 1MW + )
tubes take to heat up the cathodes, from the time filament voltage is
applied ? A friend asked me, thinking I would know, but needless to say
I have never looked at a data sheet for any of the really bid devices.


--
Dave Kirkby G8WRB
Department of Medical Physics,
University College London,
11-20 Capper Street,
London,
WC1E 6JA.

Tel: 0171 209 6406 (International +44 171 209 6406)
Fax: 0171 209 6269 (International +44 171 209 6269)



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