[Elecraft] K1 manual revisions

[Bert]

Hi Don, Petr and all,

I have a similar TX problem that I've been working on for a time. 
Reading your emails I realized
that I'm using a K1 manual Rev. J. 2015.

My K1 is from around 2000, Rev. D, and I'm now asking if the Rev. J of 
the manual is OK to use
as reference and for troubleshooting?

I have been searching for K1 Rev. D manual but can't find it.

Thanks!

Bert VE3NR



On 4/16/2019 10:55 AM, Don Wilhelm wrote:
> 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
>> MeWe: https://bit.ly/2HGPoDx
>> MeWe: https://bit.ly/2FmwvDt
>> -- 
>> Sent from: http://elecraft.365791.n2.nabble.com/
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