Jeff, https://www.c64-wiki.com/wiki/Motherboard Something like this? Sure, it may not have the pricing part down, but it has the technical aspects covered pretty solidly. I don't recall seeing a Rev. A sell by itself to know how much it goes for. I do know that silver labels with Rev. A or B tend to fetch upwards of $200 on ebay these days. -Alexander 'Z' Pierson On Sunday, March 28, 2021, 04:08:43 PM EDT, Jeffrey Brace via vcf-midatlantic <vcf-midatlantic@lists.vcfed.org> wrote: Hey everyone. I want to start knowing all the differences between motherboards for the C64. A Google search shows some website, but some have mistakes. I prefer a site which has a picture and not a schematic. Part of the reason is to know the differences for repairing, and part is for selling. I believe that Rev. A are worth more. Anyone know about selling price for this version of the motherboard? Thanks! Jeff Brace ========================================= Vice President & Board Member Vintage Computer Festival East Show-runner Vintage Computer Federation is a 501c3 charity http://www.vcfed.org/ jeffrey@vcfed.org