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Hello Heathkit H8 owners. Any one using Heathkit H8 with 8"disks? I found a 8 inch CP/M system disk that with hold apparently , Single-sided 26x256 HEATH/ZENITH CP/M 2.2.09A 03/01/84 FOR C-H8 DISKS WITH OPTION(S) Heath/Zenith Configuration Program Version 2.2.00 Serial Number: 000-00000...

For decades I have this Philips P3302-850 386 PC with Co-Processor 387 Mem 18432 Total, 640k + 17408 ext + 384k extra Holds 2 extra long special mem cards. Thing is battery fail, so replaced the 6Vdc.Batt. Harddisk is a Micropolis 1558 ESDI Should be ; cyl 1224 heads 15 wpcom 1224, lzone 1224...

Have a question about old analog Modems. In photo is the current setup with a home telephone exchange. As a follow up on the modem setup question See Threat Its al working, but with some typical problem that I can't figure out. Have a PDP8M serial setup card 110Bd, than a modem 200Bd (LEM NR...

Hello all, Back again and playing with my PDP8/M with RX02-Emulation project v4 AK6DN, normally run with VT220 terminal. As I have a great working Teletype ASR33,I now manage to connect through a modem-line connection. That is the Teletype is downstairs, the PDP8 upstarts. So have a small...

For those who are able to pick it up. There seems to be a sale of this massive beautiful giant DEC LINC EIGHT. Hope it will find a good new home Sadly for me its a bit expensive to ship to Europe. Ah well looking at pictures is also fun...

As I am working on a Digital PC05 reader/Puncher, it seems I am missing the motor pully and drive belt from the Puncher. Does someone has some spares? Pully Puncher is there, just the motor-pully and belt. Would be great to get the machine going again. Maurice Netherlands.

I have This Tulip XT 8088 pc. First XT of Tulip. After a repair of the power supply it Boots right up Dos 3.30 from FFD 360k It had no HD so installed the Seagate ST-225 MFM 20MB, with a Seagate MFM ST11 card. There is a problem with think Keyboard Buffer?. Just a DIR <enter> works fine. Then...

Have required some org IBM 8 Inch FFD's. But what system could that be from? With ANADISK I can't read the contend. Mostly I can read the sectors and figure out what system those are from. But these only random characters are shown sadly. 1 sect is 26x128, rest is 8x1024 dual side. Label is...

At the moment working on a 6580 S/36 system with dual 8" FFD-drives Problem.....No Keyboard, damnn,We looked at that basement around but no keyboard to be found. Must be a 15pin D-connector. If any one has something useful laying around, let me know. Try to hook up a XT keyboard by using +5V...

As for any with problems PDP8M(/E) The tricky M837 Failure. Here the debug of the last struggle I had with Booting the PDP8M to OS8. And thanks for so many help I found here. The systems seems to work as all Toggle test programs were running. Have a 8k Core memory so only field 0 & 1. If I set...

As I have my PDP8M working so far , on that HowTo later. If I boot from OS8_RX.RX1 disk with the RX02 emulator I get perfect the Boot DOT. Then a DIR and indeed there is a Dir of the disk. Second attempt I get a Monitor ERROR 3. With a real RX02 FFD drive and a Bootdisk OS8 I get also the...

Having some problem building a new system I am Running UBUNTU. (I am a complete newby at Ubuntu) Followed these steps simh-pdp8. (link) attach the mentioned 3 files. Boot RX0 -all went well. Then I am stuck at : "We start with formatting the disk with the ZERO command:" .ZERO RKA0: OUTPUT ERROR...

Have a M8650-YA card that keeps having problems. So far I mange to get a bit going. Program 33 of the Toggle (Echo test 03/04) perfect, no problems, also when a Key is pressed continues there is no failure in the print out. The AC is showing correctly the typed Char, f.i. A=0101. All tests with...

For couple of day's I am struggling with my PDP8/M and the Timing Control Board M8330. T's definitive this board , because with an other M8330 the machine is working fine. The problem is, the PDP8 will not read in From Asynchrone M8655 (1200Bd), Terminal VT220. Did all the toggle in tests 20...

Have de PDP8/M with a M8357 RX01/RX02 card. Downloaded a RX01 OS8 Boot image flop , Took a RX02 drive and set it to RX01 mode. Bootstrap RX8E. See initialize the floppy drive, See 1 Led on Ac light up thats it. Did manage to load paper tape Maindec-08-DIRXA-B-PB RX8/RX01 DIAGNOSTIC PROGRAM...

Have the PDP8/M and after some debugging and finally changing out The M8310 board I definitively know this board has a defect. Even the simple check will fail with this board. AC Increment 200 7001 increment Ac 201 2300 increment & skip if zero (ISZ) 202 5201 Jump 201 203 5200 Jump 200 At run...

I have this NEC FD1165-H version 8" floppy drive attached to PC with FDADAP DBit adapter pcb. NECFD1165MaintenanceManualOct1982_108p.pdf This service slightly different from my drive, PCB has changes and jumpers not quite the same Think dis is the -A version. I have the -H version. Found...

Has any one a spare Dilog DQ120 or a Western Perifical TC130 Tape Driver board? As long as it can be set up as 7-track, nzri standaard en 200 bpi And suitable for PDP1123. Would be great. Have the Kennedy 1400 R Tape drive quite some time. And would be nice if it can be used with the PDP1123...

Hello, After years finally starting to rebuild this extended Keyboard and Video Board after it was partly stripped and changed. Seems to be from the Netronics ELF II 1802 computer. Found the schematics and all is going well, What I am missing is U24 MK2708 the Char ROM. Does any body have or...

I was happy to have an org disk but it fails to read proper. See photo the obvious, some holes in it. Does someone has an Image or know to find an image? Would be great. Product: CP/M SYSTEM & UTL (1) Part No: MM00027 CP/M 3.02