Ahhh, we have a problem

Testing the K2

  • Resistance checks
    • Pass
  • Assemble the Case and plug in the Front Panel and Control Board.
    • It’s starting to look like a radio now. Isn’t it small!
  • 4MHz Reference Oscillator Calibration Check
    • The target is 12090 kHz +/- 30 kHz. Mine is running at 12099.45. Pass.
  • PLL Reference Oscillator Range Test.
    • Target range is between 9.5 and 15kHz. Mine is 13.38kHz. Pass.
  • VCO test
    • Target is to be stable in the range 8 to 10MHz. Mine is 12.099.45 MHz. Fail 🙁
  • Time to get digging.

Finally building my Elecraft K2

Picture of an Elecraft K2

Back in 2003, yes 2003, I splashed out and bought an Elecraft K2. To my mind at the time, it was the best radio there was at a price point I was prepared to pay. (Note: Even now, it’s still right up there with the best). Also, it came as a kit; which attracted me. I did a lot of circuit construction in my early days as an engineer and l have kept my eye in over the years.

I started to build it, and got as far as completing the front panel and control boards. Then life intervened (big time!) and the K2 ended up in a box awaiting further work.

Well the time has finally arrived to make progress again. It’s only been 11 years after all!

The kit is on the bench and I’ve started to build the RF board. I try and spend an hour a day on it. I usually work from home, so I get to spend the hour between stopping work at six and supper time at seven to do some construction. It’s better than spending it stuck in a traffic jam. If I’m lucky, I get another hour in after supper.

I started in the middle of May and progress is good. I have cheated a bit, and bought pre-wound toroids from The Toroid Guy. It’s not the winding, it’s just the time.

The best investment has undoubtedly been the Panavise 333 circuit board holder. It was expensive, but definitely worth it.