Chris,
That actually is 1.5k at R9, sorry for the slipped decimal point.
I believe you already have the information sent to you. For others who
are interested, it may be found near the end of the mod document found
at http://www.qrpproject.de/Media/pdf/SSBModsUK.pdf.
73,
Don W3FPR
On 12/3/2013 12:14 PM, Chris Kimball wrote:
Don,
My KSB2 is revision E, July 20, 2004, with the "PSK31 ALC time constant
change" of KI6WX built-in. It doesn't have the increased RF gain mod. Is
there a reference to the mod that you suggest with the R9 -> 15K and a new
1K in the Q1 base?
I was amazed at the instability at the 5W level under tuning to a dummy
load. The measured power levels alternate between 4.3 and 6.4 W with no
points in between. Seems like too much. Since I don't have a pot in this
range, I'm tempted to double R98 and see what happens. (I currently get 6.8
W on 10 meters for a 10 W setting and it doesn't bother me.)
Please let me know about the "1K in Q1 base" mod.
Thanks,
Chris
NQ8X
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