Special, unique DEC PDP-11/23, ( 1983-88 ) has been restored

[cygil1]

That's a beautiful machine, right there.

[marmotking42]

Absolutely amazing! You've inspired me to clean out the back room in my basement to restore my PDP-11/70 and VAX 11/750.

[PDP11GY]

@marmotking42 Thank you very much for your feedback. Restoring a

PDP-11/70 may be go very complicated ? As far as I know and from my

experience you have to replace some BUS transceiver like DEC8881 and

DEC864ß0. Good luck !

[PDP11GY]

@marmotking42

[marmotking42]

Oh, thanks for the advice! So in looking at the M9312 Field Maintenance Print Set (which I noticed has some DEC8881 on it). It almost looks like maybe the DEC8881 is a 7401 (Open Collector NAND gates). I note in the M9312 print set there are resistors on the outputs, so I'm assuming they're Open Collector. I haven't found the DEC8640 specs anywhere. Would you happen to have them?

[PDP11GY]

@marmotking42 If you go to my homepage , you will find the link to

bitsavers . org where you get all the infos you need.

[Luukasa]

Nice video! Very interresting.

[syonastarlight]

Wow this dude has the biggest e-penis on the internet right now.

[chotaire]

Daumen hoch!

[zaibase]

Great video. cool to see this old system running.

[fiftycaliberfistfuck]

6:41: check out the pop blue spark - what's that? lol

[fiftycaliberfistfuck]

mad skillz

[ayadiv]

This Project is AWESOME!

[theodricaethelfrith]

Very cool video and system! You've given me hope and confidence for my upcoming PDP-8 rebuild.

[PDP11GY]

Wish you good luck rebuilding your PDP-8. There are several internet-sites available where you can get most of all technical infos.

[TalksWithDirt]

D00d! You are a God! Love the computer, and your accent only adds to the c00lness of the video. I have two 8 inch drives I'd like to interface with USB to a PC. Do you know of a source of documentation on the signals of the 8 inch series floppy? In fact, mine are made by Siemens! Made in West Germany! :) Gootentag!

[PDP11GY]

Thank you so much for your nice feedback. Connecting 8 inch drives to a PC via USB sounds very interesting and is a realy challenge. You will find very good docomentation in the RX02 technical manual EK-0RX02-TM . Just google with " EK-0RX02-TM " and you will find a PDF docu or send me E-Mail, I will reply with this doku. Good luck und best regards

[PeterStalin]

Reinhard, Du bist der BESTE!

Ich kann mal wegen den RX02 floppies bei meinen Arbeitgeber nachfragen:)

Übrigens wie heißt die musik die du verwendet hast?

[PDP11GY]

Danke Dir, aber so übertreiben brauchst ja auch nicht :-)). Das mit der Floppy wäre natürlich super, also sag mir bitte Bescheid. Die Musik stammt von meinen Video Bearbeitungsprogramm. Danke nochmals und Gruß