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Experienced Member
OK, now that I got my original CoCo fitted with the HJL 57 keyboard, on the next project...
I have downloaded the May 1984 issue of Rainbow (p 49) that details how to do the memory upgrade from 16K to 64K on my CoCo 1 Rev D. Not the easiest procedure of all the CoCos, but nothing I don't think very difficult either.
https://archive.org/details/rainbowmagazine-1984-05
A couple of quick questions before I get started:
1/ Is it OK to mix 120 ns and 150 ns chips?
2/ Are all 4164 64K? (I have several different manufacturers)
3/ When wiring to an empty DIP socket (the result of bending the respective pin up), what is the best/cleanest method to do so? Insert wire into socket? Solder wire to socket (but heat will damage socket plastic).
4/ Any other concerns/tips about the upgrade procedure?
Thanks!
Cary
I have downloaded the May 1984 issue of Rainbow (p 49) that details how to do the memory upgrade from 16K to 64K on my CoCo 1 Rev D. Not the easiest procedure of all the CoCos, but nothing I don't think very difficult either.
https://archive.org/details/rainbowmagazine-1984-05
A couple of quick questions before I get started:
1/ Is it OK to mix 120 ns and 150 ns chips?
2/ Are all 4164 64K? (I have several different manufacturers)
3/ When wiring to an empty DIP socket (the result of bending the respective pin up), what is the best/cleanest method to do so? Insert wire into socket? Solder wire to socket (but heat will damage socket plastic).
4/ Any other concerns/tips about the upgrade procedure?
Thanks!
Cary