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Old 10th Feb 2021, 11:12 pm   #576
SiriusHardware
Dekatron
 
Join Date: Aug 2011
Location: Newcastle, Tyne and Wear, UK.
Posts: 11,485
Default Re: Non-working Commodore PET 3016

I would give the chap on vcfed a little bit longer to respond, he's probably just fallen off his chair.

Have a look to see when he last signed into vcfed, he may just not have had a chance to see your enquiry.

Cricklewood's description of their part is sending mixed messages:-

Quote:
EPROM 4K X 8 NMOS 28DIL = TMS2532JL-45 by Texas Instruments
It's a 24DIL part, not 28, and the image used to illustrate it has 28 pins as well. If you do order from there definitely email them first to confirm the exact part number and number of pins. (And let them know their advert needs correcting).

The part in Birmingham looks right although a little bit beaten up for a 'new' part, but if it works that doesn't really matter.

See also the post by Dave Cox, #573. I am not absolutely certain that my programmer can programme the 25P32 as there isn't a specific selection for that variant in my programmer's software. I'd have to look at what the difference between the 'P' and 'non-P' variants are. It might just mean 'plastic' rather than ceramic. If I can't do them maybe someone else here can.

Last edited by SiriusHardware; 10th Feb 2021 at 11:22 pm.
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