Recent content by BBtheEE

A couple of H200 boards showed up on eBay today from seller cev6610. The auctions start at $0.99. I've bought some manuals and a Honeywell promotional film from him in the past. He's downsizing and has some Honeywell stuff to get rid of. I just did a quick search and a couple of other boards...

Apparently a Keytape has been found: https://www.facebook.com/share/p/1E7FXYDFem/?

I remember those board pullers...we had a bunch of them. Luckily, my hands were small enough back then and I could yank the boards out by hand but occasionally there was a stubborn one and I had to use one of those or a pair of pliers to get it out. Good deal that you have an electric wire...

Sounds like you've got your work cut out for you! :) You and Doug are much deeper than I've gone so I'm not much help there, sorry. I am curious though...do you have the proper wire-wrap tool for the backplane or did you make your own? Those Honeywell pins were an odd size and the usual...

You're a bad influence, Doug...bad!! :D

Thanks, we'll see how it turns out. :) And of course we could! :D Actually, I think that's what we should do with a control panel like Rob's...that would be pretty slick!! I could do it with my control panel already but it wouldn't be near as cool. A couple of commands to write to the...

Sorry for the late reply. I wish I knew, but unfortunately, I don't. I asked my dad about it and he doesn't remember. If we can get the tape dumped, I suppose you could look at the loader for the tape and the SADEH1 program to see if they are the same. One of the things he "seemed" to recall...

Actually, I've thought about that. For parts of it, analog would be simpler, but I'm not strong on analog. A few years ago I was asked to design some TIA circuits (trans-impedance amplifier, I even had to ask them what TIA stood for! :D ) for a test chip. I hadn't touched op-amps since...

I've always assumed that you just boot the diagnostic tape, enter the octal code from the NUM column in the listing to some address for the test you want to execute, and hit run. That would be much simpler than a string search for the name. One of them, possibly number 0000 (not listed) would...

Regarding the Keytape, it was more than just a key-to-tape device. We had one connected to a printer and I could dump tapes to it. I was curious what was on all of these tapes we had acquired and it was common to find personal info like names and addresses (and presumably account numbers and...

Thanks Rob, and please thank Brian for us! The reason I was unsure about an IBM drive reading a Honeywell tape is that Honeywell sold options for its tape drives to be able to handle IBM tapes (see attached), so there must be some kind of incompatibility (but may not be an issue for our...

Regarding the tape drives, there was a control module for handling the reel motors, it wasn't as simple as letting the zone switches control them directly. The module has the switch (a kind of rocker switch) that Karl Malden uses to run the tape backwards in the movie, "checking the actuator"...

Rob, best of luck with the book...that would be pretty cool to be published! I guess it's all a matter of time and priorities (as it is with me as well). Hopefully the museum will let you look through their manuals. I doubt looking at the physical machine will be of much help but it would...

Ya, someone didn't know what they had and just duplicated another listing. I wondered why someone bought these as well (I thought it might have been you! but you would have told us :)). I doubt anyone else is trying to recreate a system or needs spare parts, so it must have been a collector...

Just saw some boards that sold on eBay while looking at IBM 360/370 control panels (one sold for $15K!). Someone mis-labeled these as IBM boards: https://www.ebay.com/itm/356794346920