[AMPS] low out on 10m--clarification

[km1h@juno.com]

On Wed, 20 May 1998 17:13:55 Scott Townley <nx7u@primenet.com> writes:
>Clarification:  Low out on 10m is ALSO low DC in on 10...plate voltage
>nominal but Ib quite a bit low.  Maybe this is typical of low output 
>on
>10m, but in case that's the key indicator...

Low DC in???  Or do you mean RF??
If the input network has a high VSWR to the exciter or is just a poor
design the output will suffer. 
An old clunky WW2 mica .01 type coupling cap to the filaments could also
be quite lossy at 10M, etc.

73  Carl  KM1H




>
>
>>
>>OK, here's your chance for making Letterman:
>>What are the top 10 reasons (or fewer...I hope!) for low output power 
>on 10m?
>>I have an old 2x 3-500Z homebrew unit that's gangbusters on 80-20, 
>just
>>busters on 15 (but busters is good enough), but putz on 10m (550W out
>>compared to 1200W+ other bands).
>>Appreciate it...give me something to do this weekend!
>>
>
>
>------------
>Scott Townley		
>Gilbert, AZ
>nx7u@primenet.com
>
>
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