uBitx – Part 4

Here is my completed uBitx. It worked perfectly the first time I applied power. Well, except I had the encoder wires backwards so the tuning was backwards, but I don’t count that. The microphone, keyer and external speaker jacks are on the front panel. I plan to make custom knobs (red of course) on the lathe when I get time. There is a custom made heat sink on the back. It connects to a custom made piece of thick aluminum on the inside of the case where the final transistors mount. This view show power and RF connections. You can

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Oak Hills Research WM-2 QRP Wattmeter – Part 5

Here is the completed WM-2 wattmeter. It took just a few hours to build over two days of my vacation. Things I like about it: High quality kit Easy to build Rugged Easy calibration Has internal 9V battery for field measurements Lowest scale is 100mW for those QRPP measurements Accurate Reasonable cost Things I don’t like about it: Well…..I can’t think of any at the moment.

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