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Re: QCX+ assembly (IC5 through IC 10 identification


 

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.

73 Hans G0UPL



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:
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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