HP97 The journey begins
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05-01-2020, 03:47 AM
(This post was last modified: 05-01-2020 05:38 AM by teenix.)
Post: #223
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RE: HP97 The journey begins
Hi all,
I received some circuit boards the other day so international postage is still working to a degree :-) I decided it should be ok to submit the HP-97 replacement CPU prototype designs for manufacture, of which two are required, and hopefully I'll have them in a few weeks to begin populating and testing - exciting. The 64 pin TQFP chip (pin spacing 0.5mm) might be a challenge to solder but I think it should turn out similar to the 44 pin chips used in the other boards which are quite easy. Edit: Some other circuit boards came today for another HP project I've been playing with which uses the same PIC, and it looks like these chips can be soldered with simple tools from home :-) cheers Tony |
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