[AMPS] SB-220: Operate/Standby Switch

measures 2@vc.net
Tue, 6 Feb 2001 08:05:25 -0800

>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.  

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