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I've a Sommerkamp FL 2277 Z (identical to a FL 2100 Z)
and the bias has a value of 70 mA aprox
I tried to increase it altering R4 but I can't see any change
Is a symptom of soft tubes or the problem is a different one ?
It gives 500 W on 40 mts max.
TKS for your help
73,
Carlos, LW1DX
lw1dx@qsl.net
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<DIV><FONT color=3D#000000 face=3DArial>I've a Sommerkamp FL 2277 Z =
(identical to a=20
FL 2100 Z)</FONT></DIV>
<DIV><FONT color=3D#000000 face=3DArial></FONT><FONT face=3DArial>and =
the bias has a=20
value of 70 mA aprox</FONT></DIV>
<DIV><FONT face=3DArial>I tried to increase it altering R4 but I can't =
see any=20
change</FONT> </DIV>
<DIV><FONT face=3DArial>Is a symptom of soft tubes or the problem is a =
different=20
one ?</FONT> </DIV>
<DIV><FONT face=3DArial>It gives 500 W on 40 mts max.</FONT> </DIV>
<DIV><FONT face=3DArial>TKS for your help</FONT> </DIV>
<DIV><FONT face=3DArial>73,</FONT> </DIV>
<DIV><FONT color=3D#000000 face=3DArial>Carlos, LW1DX<BR><A=20
href=3D"mailto:lw1dx@qsl.net";>lw1dx@qsl.net</A></FONT></DIV>
<DIV><FONT color=3D#000000 =
face=3DArial></FONT> </DIV></BODY></HTML>
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