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Ah well....I'll have to replicate the board then..Unless the buyer wants to sell me one ?

Switzerland....

Would really like the opportunity to buy a 1642 CPI card for the 1635 control panel head that I already have !If you, or your buyer, has a spare one.... Would have bought the whole lot if it was not on the 'other side'..

Saw a CDC160A for the first time yesterday. But what is it with that big rack of PCB's on the backside / on top ? Never seen this on one of the online pictures. That rack also contains a corememory. Isn't the real computer supposed to be in the lower right cabinet ? The lower left cabinet...

Sorry, turns out that the terminators I have are for the Diablo 40-series. Which means I am also on the lookout for 2 Diablo-30 series terminators. I feel an upcoming project....

I can provide pics if needed, I have no surplus ones to sell. Thos connectors are cumbersome to source now, I should just convert them to plain old flatcale with IDC's. What machine will you be using the Diablo's with ?

I have a 4050 calibration tape.It has a broken belt.....

And another Datapoint 1100/cassette joins the stable. Although in less than perfect state... This Datapoint 1100/cassete has a 8Kb max ram DP1100 mainboard whereas the Datapoint 1100/diskette has a proper 2200 mainboard with 16 Kb max ram. Interesting is that the 1100 mainboard allows for a...

Here is a 20 min movie about the British Tail TOPS system, which used quite a few Datapoint 2200's web.archive.org/web/20201120120739/https://www.youtube.com/watch?v=7-yY8nRu3RA&gl=US&hl=en [EDIT : just add https in front to view the video, direct link does not seem to work"]

Here is the sourcecode for CTOS, the cassette operating system for the earlier versions of the DP2200 / DP1100. Later versions of the 2200/1100 ( and 5500) use a videocard with a programmable characterset, not supported by this early CTOS version. It was obtained by OCR'ing and handcorrecting...

>> Jos: So what happened to your PSU when it killed itself? Mains rectifier shorted, that also took out the main chopper transistor and the LM555. It took a while to find a suitable replacement for the chopper transistor ( a BU931 will work instead of the SVT6002)

That is the advantage of the newer type PSU in my machine : at least no live voltages go into the backplane.....Conceptually it is the same though. As said in my PM : take care with the L1 ( smaller metal box ) Its is mounted to the PCB with tiewraps that now are very brittle from aging. The...

As Mattis mentioned i have a DP1100 ( DP2200 minus cassettes) I also have the full set of cassettes for DOS.D 2.6 Still have not found a good way of reading these, and anyhow DOS.D is for a DP5500, not 2200. Individual programs from my floppies should run on a cassette, but I know of no means to...

We can talk about a new MFM version end of September, that is if AK's bears dont get me first !... Relying on a 4054 does limit the audience though...

I had not read the whole thread, sorry. But yes, you are right w.r.t. the images.

The DRP you'll receive is tested, so if it does not work at your end you'll have to debug the 4052 end. Important : which images exactly ? I posted 2 versions, the original ones ( can be found on bitsavers ) and a transposed one, intended for wsi57c49 EPROMS ( slightly dirrefent pinout) . You...

Well, since the discussion is public anyhow : I do indeed have a spare, but incomplete, 4052 keyboard. Keycaps differ between 4051 and 4052/54, as per Tom's pictures. And while rummaging through my parts boxes yesterday I found around 25 (used) switches, without keycaps, that are a perfect...

The Datapoint 9350 is also a Diablo-30 series disk, with 24 sectors. I have the controller & drive, but no documentation beyond the command description, as found in Bitsavers.

Brain fart....that was of course the assembler that I posted, not the disassembler.... Like you i used a 6800 disassembler ( fd9dasm in 6800 mode ) andf handcorrected the endresult. Which I then assembled again to do a binary compare with the original binary. Sorry for the misinformation !

It is...