Electronics > Beginners
Bad caps on my Commodore 64? Should I replace them?
james_s:
Ceramic capacitors from the era of the C64 were even simpler than that, just a slab of ceramic with metal electrodes on each side. I don't think multilayer ceramics came out until much later.
rsjsouza:
--- Quote from: james_s on August 11, 2019, 05:43:38 am ---Ceramic capacitors from the era of the C64 were even simpler than that, just a slab of ceramic with metal electrodes on each side. I don't think multilayer ceramics came out until much later.
--- End quote ---
Although MLCC was an Apollo era innovation, it was not a cheap device throughout the growth of SMD of the 1980's - especially with a consumer product like the C64 which was very cost sensitive.
I think the cellphones were the ones that created demand enough to reduce their price to acceptable levels. (just like with many other things that became affordable with the advent of these ever-available mini intercoms)
Despite this, the SMD MLCCs can be quite sensitive to the dramatic thermal expansion subjected during soldering - they can develop small dielectric fractures if not carefully controlled.
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