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This is a Memorykeyer and audio break-out box. I can with the knobs on the front select to key radio 1-4, select 2 of 10 different audio-sources to come out on the two built in speakers, or headphones. This way I can run all my radios more or less simultaneously The LCD has backlight of course. The CWThing is built up around a PIC16F877, a IRF530 Switching FET, a load of knobs and connectors, a couple of speakers, a standard ASCII LCD and a 64KBit EEPROM.
On the backside you can see all the connectors. From the left, one line out connector, 5 stereo in connectors, below there are 5 mono in connectors. Then there is the key in connector and four key out connectors. And last but not least the RS232 computer-port, which I use to add/remove/edit the stored messages and a bunch of other things...
