Two 813's Modulating Two 813's RF Deck Alias: "Tesla 300" |
Drawing by John, W2WDX
The rumor has it that Tom, K1JJ scribbled the original of this schematic out on the kitchen table of Craig, KA1ZEQ one evening. This is the 813 based rig you hear these "bigboys" using from time to time in the Northeast. Before you go trying to build one these, remember there are lethal voltages running around inside, so please, BE CAREFUL!
The values for current are minimums, so you may use whatever you have, or can get, in regards to current ratings. For the Heising Choke, and the Modulation Transformer you have some room also, as long as you use ratings at, or higher, than those shown.
If you would like a copy of this schematic that will actually print the right size and do so with high clarity, you can click here. This is a large image so expect to be waiting a long time for your browser to display it, but it will worth the wait when you print it. Once it has completely loading on your browser, right click on the image and select "Save Picture..." and save it on your hard drive. Hopefully you have enough memory to print it.
Get details on the power supply here.
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