')
.
4.12 Long Cable Operation
The controller is capable of supplying rated filament power to a tube with up to a 40
foot gauge cable. A longer cable can be used if the filament and grid wire size is increased to
maintain a line resistance of less than .06 ohms per lead. Consult Granville-Phillips for long
cables.
Degas power of 80 watts nominal is available using a 10 foot cable. The degas power at
the tube will decrease with longer cable lengths. This will result in a longer period of time
being required to degas the tube when long cables are used.
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