On 24 Nov 2005 at 9:14, k7fm wrote:
> The actual resistance is not material. Filaments are basically,
> either open or shut. If you measure resistance, they are not open.
> Many of the inexpensive meters have at least a few tenths of ohms of
> resistance in the leads and often the connection will add resistance.
> So, whether it measures 1 ohm or 3 ohms, it means the filament is good
> and you can move on to the next step in the investigation.
That's close. It could have continuity and still be bad (but not
likely); and remember that the resistance goes up a lot when the
filament gets hot.
73,
George T. Daughters, K6GT
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