>I am doing some mods from Harbach on the 220 and one of them is the fine
>wire fuse between the HV feed through and the PC board. Has anyone done
>that and could you use a small amp fuse and fuse holder rather than the
>wire and PC board mod?
? A fuse will not prevent damage** to the tubes. A fine wire will not
prevent damage to the tubes because it is essentially a fuse.. A glitch
resistor - that can pass the screwdriver test - will prevent such damage.
The trouble with fuses is that they do not limit peak fault current.
Glitch resistors do.
** (filament-grid short)
? ¿ I've heard that Harbaugh Electronics VHF parasitic suppressors don't
get very hot at 29MHz. Is this true ?
>
cheers, Tom
- R. L. Measures, a.k.a. Rich..., 805.386.3734,AG6K,
www.vcnet.com/measures.
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