[Elecraft] KPA500 troubles

[K4ia]

Does anyone have a serial number for the changeover?  I don't see 
anything on the Elecraft wab page.

Buck
k4ia  K3 #101
Honor Roll 333
8B DXCC

On 10/20/2015 11:58 AM, ok1rp wrote:
> Hi Jack,
>
> if your KPA500 has LPF board rev. D or earlier then You will need to make
> LPF TR Switch Rework REV5 modification, Elecraft parts kit: E850607. But
> maybe there is another issue in your case.
>
> Try to read first then decide. If you want and you have SMD tools then You
> can try to make this mods first and test if it was the case. If not then you
> can send to Elecraft service. If you have no SMD tools and experiences then
> it is better to send it to them now. The people at Elecraft service are
> great and professional so no worry about.
>
> It is not complicated just a bit tight on the board and not so much space
> around the parts to remove the old one. Must be done very carefully. I made
> this mod on KPA500 for two friends already and in both cases amps worked
> well after that.
>
> Hope it helps.
>
> 73 - Petr, OK1RP
>
>
>
> -----
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