jdreesen's latest activity

Try contacting Rick Bensene, he has experience with these. https://www.oldcalculatormuseum.com/wang720.html. There are also schematics...

With the finished schematics of backplane and decoder it is on with the hardware itself : fixed mains switch and tempguard...

Apologies, that error was coming from my side. I mixed up the script that generates the ROM binaries. Sorry for the timewaste ...

Yep, that seems to be the problem. The printer driver software is shifted by 4K. Other potential pitfall : the 6850 needs to be the 2MHz...

I will look into creating a guideline for using the RS232 interface. However if you are only interested in toggeling a pin there is a...

And the final installment of my re-engineering efforts : schematics of the backplane, the decoder_iii and an updated schematic of the...

Hi, I just wanted to announce the birth of our PiDP-10 replica kit, and with that, a new overview site. Because a PiDP-1 replica is...

Hi Christian. would you happen to still have software / documentation for that system ? I am located in Koblenz/Aargau and have the...

Not sure what you mean by boot-routine. The initial loading from a mass storage device ? The manual describes this as the "restart"...

I do have a spare monitor, but sending it to the US is not a practical proposition,,,,

Sorry, have missed this. These manuals are now with me, as I have a running CPT9000 system. I suppose I could scan this material. As...

...and the rest... ( yes the bootboard only has a switch on it...)

Decoder, Keyboard driver, display board....

....memory boards...

Some pics of the mainboard....