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Wednesday 7 October 2009

HB-1 A? build using through hole components

Although I am expecting the HB-1A kit to use SMD components here are some images been sent to me and appear to be the same from a Chinese manual for the HB-1A kit. It is for a build using through hole components. See above the SMD one is on the right, it still has some through hole components. Note the little trimmer capacitors with the through PCB adjustments.

Pretty sure this is not based on the same schematic as the SMD HB-1A version but maybe wrong but the PCB are HB-1B and HB1C in the same doc.

Select these images to get a larger scale and run through it along side a schematic to see if you can spot the differences.

Compare with the populated SMD version board.

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