[Elecraft] [K1] TX part sick

[Don Wilhelm]

Petr.

Turn that manual to Appendix E near the back.  And on page 6 of that 
Appendix, you will find Transmitter Signal Tracing.
Set up the K1 as instructed there, and no damage will be done.

Then make the measurements in the order listed.  You will need an RF 
probe.  If you are using an oscilloscope (with a 10X probe), multiply 
the expected values by 2.8 to obtain the expected peak to peak RF 
voltage measurements.

At the FIRST measurement that is significantly less than the expected 
value (expect as much as a 10% variation before saying it is 
significant) you have reached the output of the failing stage.
Correct that stage and move onward to the next failure point.

That is the procedure required to determine why it is not working.

If the final is blown, replace it with the K1PAKIT from Elecraft.

73,
Don W3FPR


On 4/16/2019 9:17 AM, Petr, OK1RP/M0SIS wrote:
> Don,
> 
> I checked other parts in TX section and it seems to be ok (refer to manual
> 2000 Rev. D). Just removed the 5th turn on secondary winding of T3.
> 
> Is there something else strange or danger which I should check in order to
> avoid smoke during the test or even blowing the final please?
> 
> Many thanks mate,
> 
> Petr
> 
> 
> 
> 
> -----
> 73 - Petr, OK1RP
> "Apple & Elecraft freak"
> B:http://ok1rp.blogspot.com
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