Steve Johnston's Magazine and Internet Articles

Ham Radio

The MorseMeter



The Two-Tube Tuna-Tin Transmitter



The "Secret Dream" Transmitter



Shortwave for a Song: the GRR-5 Receiver



Dual-Purpose Battery Pack for Icom HTs



The Radio Shack DSP-40 Digital Signal Processor



The New Emergency Alert System



The Spitfire Receiver



Modifications to the Sony 2010 Receiver



Independent Sync Outputs for Sony 2010



Modification of the AEA DX-Handy Radios



Modification of the Heath HW-16



Modification of the Heath HR-1680



AM Squelch Mod for Yaesu FT-690R



No-Ballast-Tube Mods for the R-390A



Dip-Switch Mod for Icom IC-22S



Improve the D-104 Microphone



Add 30-meter Transmit to the Kenwood TS-180S



Moving Day for the Gates BC-1T



Broadcast Engineering

PCB Management in Broadcast Facilities



Utility Line Driver Design



BMX-II Pan-pot Modification



RCA BTF-40E1 Fire Danger





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