[AMPS] SB220 output

measures 2@vc.net
Fri, 8 Dec 2000 15:13:47 -0800


>
>> Hang on a sec ...  The SB-220 was rated at 1000W input on CW because that
>> was the legal limit at that time.  I have run mine in SSB position for 3
>> years so far, in heavy CW and phone contesting, and it has shown no
>> problems at from ~950 watts output on 10 to 1250 watts on 80.  I've kept
>> careful watch on the temperature of the power supply, color of tube
>> anodes, etc. and everything seems quite comfortable.
>> 
>> 73, Pete N4ZR
>
>That's because it has headroom in the components. Technically, 
>the transformer is a tad small and the cooling is a bit marginal for 
>1000 watts out.
>
Provided that the 220's fan motor bearings are occasionally oiled, the 
red ink on the 3-500's typically remains in virtually mint condition.  

>...

end

-  Rich..., 805.386.3734, www.vcnet.com/measures.  
end


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