falter's latest activity

Desoldering needles might be a good intermediate step here. They are essentially hollow needles that solder won't stick to. You heat up...

Just something I'm curious about as I work to desolder something. I don't have a desoldering gun - I just have a fancy solder sucker...

I'm pretty sure I've seen an H revision somewhere along the way. Might be mistaken. But I'm sure thousands of these must have been made.

Congratulations, another rare KIM-1 back on in service.

That's a question that's been in my mind for a little while now. *Are* they numerically rare? There's always a few on ebay for sale at...

Well done. I had something similar happen replacing the RAM on mine.

Yes this one suffered from my inexperience during the first attempts. I continue to tinker with the MMD.. that one I'm pretty certain...

Well done! A bit of persistence pays off in the end. As you can see, it is vitally important to be very critical of your own repair...

Its too bad it was the -002 that was bad. That one is needed to boot. The -003 code is only for I/O. It otherwise could be used for a...

There was one 002 that sold on ebay a couple of months ago.. but it went for $400 "untested".

She works! So it appears it had a couple of issues going on. The 6530-002 is definitely dead. Once I got it working I swapped back...

Ah! I might be closer than I thought. I gently flexed the board while pressing reset and several times got parts of a display, which is...

I got and installed the 'Retrospy' 6530 replacement boards. I replaced U2 first.. no dice. Then I replaced U3. No dice. This board...

I'm kind of surprised someone didn't rig up a rudimentary scanner during the S100 years. They managed to get a digital camera (the...

This is really where it ends up, isn't it? Looking back, I just realised that this 1980 S-100 bus image capture system is, from a...