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"Beam Me Up, Scotty" (Beamus) AM Transmitter -- first prototype
Okay, so I like to make up cutesy names
I wanted to do 'something' with a 6ME8 so I tried using it for an AM transmitter and the first prototype works rather well. Bandwidth is 'too much', less than 1 dB down at 18 KHz, but we'll worry about that later. This is a 'dollar days' special, 2 whole bucks worth of tubes, and L2 is a UHF converter coil scramble rewound, so that was 'free'. Power supply is from the same converter and if the remaining issues get worked out it'll probably end up in that cabinet as well (but where to put the air variable?). The schematic is rough, but should be rather self explanatory, and the ganged tuning hasn't been fleshed out yet. I'm still using separate caps while jiggling things around. Orphaned web page, not yet ready for prime time, has a recording of it playing through a table radio. http://flipperhome.dyndns.org/Beamus.htm |
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