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Old Transistor Radio - July 26, 2008

I enjoy collecting old radios of any kind.  I came across this little gem today at a garage sale for only fifty cents.  It is a simple transistorized AM radio with a leatherette case that snaps closed on the back.  It runs on 110 Volts or with batteries.  The only marking on it is “Passport”; and I can find no model number or brand and internet searches come up with nothing.  It is a cute little radio that includes 6 transistors and 2 diodes.  I thought it was clever that they even listed the two diodes in their count of solid state devices. :)  Click the picture to see more pictures of the radio.

Governors’ Cup - June 6, 2008

Desire’ and I volunteered at the Governor’s Cup marathon race again this year. The races were on Saturday, June 6.  The Capital City Amateur Radio Club provides race communications each year.  Desire’, Lynn - K7WGR, and I - K7JM were stationed near Mill Road in Helena.  As you can see from the pictures, it was very cold and windy for us that were not running.  Some runners had almost nothing on, while others were bundled up pretty well.  We froze. John

Power Meter and Homebrew QRP rig - March 2008

Here are pictures of a 40 meter QRP transmitter and receiver that I built based on design in “Experimental Methods in RF Design“.  I also built a simple power meter used in the building of the QRP transmitter.  It was also from EMRFD.