I bought some K8063 kits from Velleman and I like the way I can program the 7-seg LEDs from my PC. Now I have acquired some larger digits, and I'd like to use the same PCBs to drive them, so that all displays can work using the same protocol. The new digits are 5'' tall and I think that they draw about 200 mA. (The old ones drew 120.) I'm wondering what mod I should do to the PCB to make this work. I don't have a lot of electronics knowledge and would appreciate any help. I do know that I would use a different power supply for every pair of digits, to keep current levels down in the PCBs. I tried to put the circuit dgm here, but I couldn't get it to print. It's at www.velleman-kit.com as part of the K8063 assembly manual. I'm really stuck here and would value suggestions. The kit runs at 12v, which is what my new digits require.
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