Select the Amateur Radio Article you wish to view. Some QST page files are 300K to 500K long so it may take a while to load the page.

Go To Home Page

Building an Operating Impedance Bridge   -  -  -  -  -  -  -  -  -  -  -  -  -

Building a RF Injection Generator for the Drake R4C Receiver -  -  -  -

Building an Operating Impedance Bridge for 160 to 6 Meters This is a 1981 to 1985 Radio Amateur's handbook construction project.

A Variable Speed Code Study Program --  QST Magazine An audio tape recorder speed controller and audio regeneration circuit.