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QCX+ assembly (IC5 through IC 10 identification
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N4IJ .
I just started assembly of a qcx+ I just got. The manual (PCB 4 version) inventory shows:
QTY 1 LM4562, 8-pin dual op-amp (IC5) qty 5 NE5532 8-pin dual op-amp (IC6-10) I have 5 LM4562 and 1 NE5532 (backwards from the inventory) The NE5532 has a silver dot on it and one of the LM4562 has 2 white dots on it. I am sure this is the identification mentioned mention on a piece of paper in the kit, but I'll be darned if I can find that piece of paper it it would help. Any hints out there ?? Looks like it might have been some sort of spec identification. Thanks, Doug N4IJ |
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Hans Summers
Hello Doug Use the 2-dot LM4562 for IC5. Use the 1-dot NE5532 for IC10. Use the other ICs for IC6, 7, 8 and 9. This is what the little piece of paper said. On Wed, Nov 23, 2022 at 7:20 AM N4IJ . <dougn4ij@...> wrote: I just started assembly of a qcx+ I just got. The manual (PCB 4 version) inventory shows: |
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N4IJ .
Great! I sort of figured out the reason for the dots but needed confirmation. Thanks a lot. Doug N4IJ On Wed, Nov 23, 2022 at 1:58 AM Hans Summers <hans.summers@...> wrote:
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