Posts Tagged PRLOAD
Data General Nova 3/12 Power Supply drawings
Posted by Tommie in Data General Minicomputer Projects, The Data General Nova 3 Restoration Project on Sunday 7 February, 2010
I have two Nova 3/12’s. One equipped with:
- NOVA 3 CPU, PWRFAIL, PRLOAD, 256KW
- NOVA 3 TRIPPLE OPT, MMPU, PAR, MUL/DIV, RTC
- 64KW Plessey, 128K SC, W PAR, 0-127
- DGC NOVA CASSETTE I/O, $TTI/O, 9600 B, RTC
- DISK CARTRIDGE CONTROL DGC NOVA, DKP, 4234, 6030
- DGC NOVA CASSETTE I/O, $TTI/O, 9600 B, RTC
The other is an empty chassis, both with faulty power supplies. I contacted Bruce Ray of Wild Hare Computer Systems and Bruce provided me with Nova 3/12 Power Supply and backplane drawings. I still have to troubleshoot and repair the power supplies, but at least I now have the drawings and the tools.
Picked up a Nova 3/12 from my friend Bjarni
Posted by Tommie in Data General Minicomputer Projects, The Data General Nova 3 Restoration Project on Monday 16 November, 2009
A fellow Data General minicomputer collector offered me his Nova 3/12 a while back and today me and friend went to his place to pick up the Nova 3. Bjarni, as the friendly guy he is, also offered me to take his Model 4234, Diablo drive which I did. I now have a DG 19” rack, the Nova 3/12 CPU with:
- NOVA 3 CPU, PWRFAIL, PRLOAD, 256KW
- NOVA 3 TRIPPLE OPT, MMPU, PAR, MUL/DIV, RTC
- 64KW Plessey, 128K SC, W PAR, 0-127
- DGC NOVA CASSETTE I/O, $TTI/O, 9600 B, RTC
- DISK CARTRIDGE CONTROL DGC NOVA, DKP, 4234, 6030
- DGC NOVA CASSETTE I/O, $TTI/O, 9600 B, RTC
- A 4234 Diablo disk drive and a 6026 Vacuum Tape Transport
I believe the Diablo disk drive was part of the Nova 3/12 system since it has a disk controller installed for the Diablo drive.