Another unknown EPROM...

[bbking67]

I'm pretty sure that The Chip was developed by Mike Gustafson before he teamed up with Tom Harker and ICD, hence the name SpartaDOS.

[+Nezgar]

19 hours ago, ebiguy said:

How many ohms should the trimpot should have?

Is the trimpot the only addition to do in the 810 to be able to change the speed? (I mean that there is no trace to cut, pin to bend or anything else to do)?

I'll try to get the current measurement from the trimpot for you. Hopefully in the next couple of days.

 

48 minutes ago, bbking67 said:

I'm pretty sure that The Chip was developed by Mike Gustafson before he teamed up with Tom Harker and ICD, hence the name SpartaDOS.

You are correct, this is well established.