MCes wrote:Eslapion,
I respect the others religion,
but the fundamentalism is out of my respect.
Electrical engineering is not a religion, it is an
applied science.
It does include the usage of various types of metal, including precious ones, for their conductive and mechanical properties.
I told you: or you post the list of people that had problem with this kind of connector, or you are only speaking about your personal religion!
I cannot post a list that encompasses millions of people and affected various electronic devices all over the world.
Everybody can express own ideas, but I think that is necessary make a distinction between idea/suspect/conviction/proof/.
I THINK that "edge connector" was a bad solution adopted by Commodore (and other) for movible cartridges, but it was cheap, so....
I THINK that each "pcb finisch " generate a different kind of contact-problem: there isn't a perfect "pcb finisching"!
I THINK that without the names of people that had to repair owner VIC20 because they don't use gold cartridges your discussion is: the WC toilet has to be cleaned with "Water with gas" that is better than "mineral water".... Sorry, but without evidences I'll use the water from the pipe......
Somebody more diplomaticcally told you:
"Try looking outside, there's actually more serious problems in the world...
If anyone got connector issues from using this cartridge, I will personally repair it, free of charge."
I can be direct (using English, a language that isn't mine....), but my ear is open to listen, I am not a fundamentalist.
I think that my position is clear, and I'm tired of this polemics, so in future I'll try to write only "But who had problem? the names please..."
Your
ignorance about the EMF resulting of dissimilar metal contacts as well as other aspects of edge connectors is the cause of this 'polemic' which isn't one at all.
Every single Commodore cartridges for the VIC-20, C64 and Amiga Zorro I, II and III cards as well as all ISA, VLB, PCI, AGP and PCIe cards for PCs I have ever seen sold in large quantities in any computer stores or on the Internet all had gold plating on their edge connectors.
Of course, all the companies which did this are wrong and you're right... because I don't give you a list? Do I have to give you a list of people who died after ingesting bleach to prove it's not good for you ?
The people who wrote this article and posted these photos are also members of 'my religion'... I suppose.
https://db-electronics.ca/2017/05/31/su ... ion-carts/
Mike too, I guess. He's not exactly in admiration for me...
Mike wrote:Gold plated edge connectors are, without doubt, the best choice. The poster in the article points out, though, that a high number of insertions with HASL finish foremostly expose the copper below the tin, which then leads to corrosion on the edge connector fingers.
...
So - tfw8b and Misfit would be well advised to take that recommendation to heart, especially with such a high-profile product. No one is free from errors though, and supposedly it's the first time it has been pointed out to the manufactorer, that he shouldn't miss out on this little bit of extra cost.
When you know what you do, you use HASL on the edge connectors of prototypes you know you won't use often. You don't use that on cartridges you sell at large because it's irresponsible.