NORD-10 Serial 619

NORD-10/S serial 619 is a survivor, it's seen some tough times

This is how it looks today.

The power supply was replaced years ago and only parts of the original supply hangs in the wires. The card crates might not have the cards in the right positions or even being complete. I will do some study of other systems that still exist and try to rebuild it into a running state. I will also try to find out more about it's history.

Status

In need of serious repair. Not in a running state.

Configuration

The two card crates are half filled with cards. It has not been documented yet which cards or where they are. It is very possible that cards are in the wrong position.

• Power supply is just a mess, replaced with a PC power supply.
• Front panel in good shape.
• CPU-crate with unknown content.
• I/O crate with unknown content.

CPU crate

This list reflects the configuration when I got the machine as well as the current one. There might be errors in the original configuration.

There is markings on the backside of the crate that shows what type of card should be in respective slot. This should be checked before trying to power up the CPU.

The CPU crate above and the I/O crate below.

Backside of the CPU crate, colored cables going up is to the front panel, downwards is the I/O bus extension to the lower crate, white is power and the green ones... beats me.

Position	Initial card	Name	Current card	Name	Notes
1	1062	STATUS
2	1001	ARITHMETIC			1001/II
3	1001	ARITHMETIC			1001/II
4	1002	REGISTER
5	1002	REGISTER
6	1002	REGISTER
7	1002	REGISTER
8	1007	DECODING			1007/V
9	1006	OR LOGIC			1006/IV
10	1023	1K PROM			1023/II
11	1075	MICROADDRESSING			1075/II
12	1120	TIME CONTROL
13	1073	CONTROL DRIVER
14	1040	PAGING			1040/V
15	1058	INTERRUPT CONTROL			1058/III
16	1008	INTERRUPT REGISTERS			1008/II
17	1121	PANEL CONTROL			1121 C ??? Check backside of crate
18	Empty				Optional? .... check manuals and backside of crate
19	1127	TRANSCEIVER CONTROL			1127 D Check backside of crate
20	1119	TRANSCEIVER ADDRESS			1119 D Check backside of crate
21	1115	LAMP REGISTER			1115 E ??? Check backside of crate
22	1125	TRANSCEIVER DATA			1125 E Check backside of crate
23	Empty				Optional ... Multiport control? Check backside of crate
24	Empty				Optional ... Multiport data? Check backside of crate
25	Empty				I/O and memory area
26	Empty				I/O and memory area
27	Empty				I/O and memory area
28	Empty				I/O and memory area
29	Empty				I/O and memory area
30	Empty				I/O and memory area
31	1132	32K RAM			1132 D, I/O and memory area
32	1132	32K RAM			1132 D, I/O and memory area

I/O crate

• Slot 1 : ...
• Slot ...
• Slot 32 : ...

Die cast serial number plate.

History

• Original owner not known.
• Part of the computer park of the FUN (Forskarföreningen Umeå Naturvetare) society around 1985-1995.
• Previous owner tried to get it running by replacing the power supply 10-15 years ago. It never started.
• It's been in my care since around 2003 when the previous owner put it in my workshop and tried to get it running. It's been with me through two moves since then. Last move was in 2017 and hopefully it was the last one in a long time.

Future plans

• To begin with just check if the system is complete enough to get into a running state. The old power supply is obviously beyond repair, but a modern PC power supply should be able to power the system.
• Test if it will do anything close to running and why not.

Extras

There are some documentation that I haven't received yet.

Location

The system is in the care of Göran Axelsson and is located in a storage close to Umeå, Sweden.

Gallery

• 

  Front of the system in 2014

• 

  Back of the system in 2014, PC power supply hanging in the wires.

• 

  Serial number plate

• 

  Card cages in 2014.