K2 build project: RF board part 2

Life has intervened a bit lately, and I've had less time to work on the K2 than I would like. I've slowly plodded through the second phase of RF board construction, and last week I was able to see the fruits of my labors. I put everything back together, powered it on, and did not see smoke! Furthermore, after working through the alignment procedure, I was able to hear CW on 40m with a 10 foot length of speaker wire as an antenna! That was really gratifying. I originally wanted to post an MP3 of that, but I ended up impatiently pressing on with the third and final phase of the board, which is now nearly complete. The following photos are just phase 2.

This board is a retrofit that adds thermistor discipline to the K2's PLL, for a more stable clock.

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Thermistor retrofit installed in the lower left corner.

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Lots of capacitors installed.

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Test points (yellow pegs) and crystals installed.

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My first toroid.

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Everything put back together for testing at the end of phase 2.

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