[Elecraft] K1 no output power
Lorenz Koestler
lorenz at koestler.ch
Sun Oct 17 16:39:01 EDT 2010
Hi
I build a K1 (80m, 20m) during the last days and had a lot of fun! The
manual is just awesome and I am looking forward to make my first qso
with it.
Now I have a problem with the tramitter. That is why I joined this list
and I was very glad to see, that there is much activity.
The rx alignment went well and the resistance and voltage checks of the
tx part are all fine.
When I first started the tune mode on 80m with 2 watts, it shows me
somewhat like 1.7, Q7 became quite hot and something started smelling. I
was not able to read the current consumption before I disconnected the
source.
After double-checking all resistor values, the orientation of all diodes
and ICs and the transformers, I tried it again.
But now, regardless on what Out-Pwr and Band I choose, the display shows
"P0.1" in tune mode. I can hear a very weak tone in the K3 standing next
to the K1. The current consumption is at about: 60mA rx, 200mA tx
I cant see any cold solder connections nor bridges.
So I guess I burned Q7 somehow. Any idea what I can do or what went
wrong here?
How can I test a 2SC1969 and what do I have to check, to make sure, I
don't just burn a new one?
Many tnx fer ur help and best 73 de Lorenz / HB9TYU (Zurich, Switzerland)
--
Lorenz Koestler <lorenz at koestler.ch> / HB9TYU
PingMe: https://pingen.com/*lorenz
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