>
>Tom says;
>
>>By far the biggest stress in amateur service is the
>> constant thermal cycling of the filament
>
>That's where the rheostat comes in handy - assuming proper proportions, it
>limits surge current.
>
not in the real world
>Of course, so does a suitably designed surge limiting filament
>transformer, but
>that can be a bit more expensive.
In the SB-220 and TL-922, the T/R orig. relay is too slow for T/R with
modern radios..
>...
cheers, Peter
- Rich..., 805.386.3734, www.vcnet.com/measures.
end
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