Re: Zx81
I would cut the old chip out but I wasn't sure if John wanted the option of refitting it. The best option is a desoldering pump, they're much less expensive than they used to be. I have one of the ZD915 ones that are around £100 and it is excellent. The plunger style ones at £5 work well if your not doing too many chips or you have the patience of a statue, just heed Sirius's advice about not forcing anything; if you've removed enough solder and freed the pins as described the chip will almost fall out.
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