IMSAI EPROMS

On Fri, 8 Jun 2001 10:45:45 -0600, Joel Weder wrote: #Hi all... # #I've been trying to get some action from this IMSAI for awhile now. Main #problem is I don't know what is on the EPROMs on the EconoROM board. It #looks like banks A & B, OR banks C & D, can be enabled together starting at #address 0000h. There are 6 2708's in A0 through B1, and 8 2708's in C0 #through C3. # #I've been looking for an EPROM burner that can read/write 2708's with no #luck so far. We have TWO machines at work, and neither will do it. Anyone #know of a burner that WILL? Yes. The Data I/O 29B with Unipak 2B will. I just burned one a couple of weeks ago. As I learned from Pete Turnbull, the reason almost no modern burner can handle a 2708 is that it is a 3-rail chip, requiring, among other things, +12V. Beginning with most 2716s, eproms only used +5V. But, I have the machine, it works, and I would be happy to do it for you, if you supply the chips and code. Louis