Niklas Ramsberg <niklas.ramsberg@swipnet.se> wrote: > the first revision [..] has the PET style keyboard Only the very first VIC-20's. I own and have seen several "two-prong " (9VAC) VICs with the Helvetica style keyboard. On the other hand there are DIN powered VICs with both Eurostyle and Helvetica keyboards. Practically speaking, the VIC-20CR model that is DIN powered is more handy because you can use your existing C64 power supplies with it. You can even power it with the slightly beefier C64C power supply if you feel the need. I think some internal expansions like Nicolas Welte's RAM/ROM board may fit differently in a first revision VIC-20 or a later revision VIC-20CR. Some external cartridges may also have different fits depending on how wide the cut-out in the plastic is. Another thing to consider is how many chips are socketed and how many are soldered directly to the board. Based on my experience, it is more a matter which factory or perhaps which employee assembled the unit rather than which revision it is. Generally speaking the older machines more often came with sockets for all the large chips, but you may also find a CR model with this feature. It could also be noted that the first revision VIC-20 uses 11*2114 RAM chips while the VIC-20CR uses 2*6116 + 3*2114 if I recall correctly. Best regards -- Anders Carlsson Message was sent through the cbm-hackers mailing listReceived on 2010-11-30 08:00:04
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