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Forum: Technische Fragen und Probleme / Tuning 17.03.2020, 13:21
Antworten: 7
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Re: Counterfeit ICs

Hallo,

These microprocessors, sold by a UK retailer via eBay, are also counterfeit.

https://www.ebay.co.uk/itm/W65C02S8P-10-INTEGRATED-CIRCUIT-DIP-40-UK-COMPANY/174151722133

Regards,
Gerardo
Forum: Technische Fragen und Probleme / Tuning 23.08.2019, 19:46
Antworten: 7
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Re: AW: Counterfeit ICs

Certainly. But unfortunately all the W65C02S8P-10 that can be found in Asia nowadays are also counterfeits. I have a box filled with counterfeit chips with this reference, bought in many different...
Forum: Technische Fragen und Probleme / Tuning 23.08.2019, 14:39
Antworten: 7
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Erstellt von berger
Re: Counterfeit ICs

Hello,

This case is even more stupid, as UMC did not manufacture any 6502 with the W65C02S8P-10 reference.

So this is an obvious counterfeit: https://www.ebay.co.uk/itm/293197724146

Regards,...
Forum: Technische Fragen und Probleme / Tuning 10.02.2017, 20:57
Antworten: 7
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Erstellt von berger
Re: Counterfeit ICs

Hi Drahti,

From what I've seen, this new WDC CPU is much more demanding with the system clock signal. The shape of the signal is important, especially the edges. I have solved some problems by...
Forum: Technische Fragen und Probleme / Tuning 01.02.2017, 14:23
Antworten: 7
Hits: 2.365
Erstellt von berger
Counterfeit ICs

Hi,

For those who repair chess computers it is becoming increasingly difficult to find certain old integrated circuits. Although I'm using the new WDC 65C02 (at 14MHz) for repairs, I decided some...
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