Timer board

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Photo of completed prototype timer board


Modified from the original circuit incorporating different FET switching transistors and now has the option of fitting up to 10 output sockets for power distribution keeping the radio neat. Note that if the G6ALU PA is used (without an external PA) the 8 way DIP switch need not be fitted, this assumes the default timer settings haven't been changed IE the micro is freshly programmed.


PCB files for board manufacture

Component overlay

Component list

Circuit schematic

Design files

PCB plots

PCB overlay

Component list


Not yet available - please email for info

PCB dimensions - 108 x 50.9mm to the outer edge of PCB outline


Item affected


25-01-08 Component list IC12 corrected toULN2803A