[Elecraft] KAT2 bridge null adj.

Hi guys After receiving great help from Don off list with the KAT2, I have a new problem KAT2 assembly and operating instruction page 16, second from bottom says: adjust C55. Hold in TUNE button and release when... Adjust C55 as close as possible to 000. When I press TUNE the display flashes

Re: [Elecraft] KAT2 bridge null adj.

Allan, Do you actually have power flowing through the KAT2? Power is necessary to generate voltage at the diodes D1 and D2 cathodes. If you can temporarily connect an external wattmeter between the KAT2 and the dummy load, see if power is getting through. Once you determine that there is power