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  1. F

    Single inline Connectors for 0.1" pitch spectra-strip (Rainbow ribbon cable) ?

    This is the classic version of these connectors (like this PanCon type)
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    Wameco (WMC) CRT-1 video board - looking for a manual and information

    I got an mostly unpopulated Wameco CRT-1 board from eBay. This board contains a Z80 processor and an EPROM, 6845 controller, CRT8002 Character Gen, RAM for the processor and RAM for Video. Without an manual and the code in the EPROM it is impossible to get this board to life. Anybody there has...
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    Chip 733w01522 on a xerox 820-II FDC Controller card. what is it?

    Hello Enrico, No, there is no way to read it out in the circuit. I solder it out of PCB and read the data from it. Compared to the WD Application Notes it is the same content. Frank Here is it: 0000: 01 01 02 03 03 04 05 06 0B 0C 0D 0E 0F 0F 00 01 0010: 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D...
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    Programming 16L8 on NeedHam EMP-11 Programmer

    I do a quick and dirty job to translate the equates into CUPL. This should work with an GAL 16V8. May be, that there are errors. Frank
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    Kaypro 10/83 and WD1002-HD0

    I have two WD1002-HD0 and one RMT1002-05 controller. Both of the WD1002-HD0 shows "System Status 02" in the lower left corner of the screen. But all operations working fine. With the RMT1002-05 i don't get the "System status 02" message on the screen. I changed the WD1010 chip on the WD1002-HD0...
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    3.5" floppy drive calibration/alignment

    Here you have two additional picture for better understanding how the track 0 sensor adjustment works for this particular Samsung drive. The screw for the adjustment you can reach from the drives back and the screw defines the position of the sensor relative to the drive/carriage mechanism. Frank
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    3.5" floppy drive calibration/alignment

    It depends on the model and manufacturer, how the track 0 sensor works. Here is an picture of an older Samsung SFD-321B track 0 sensor. Frank
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    IMSAI 8080 or Z80?

    For those, they are interested in the NSC800, here i have a schematic for the 8085 Adapter. The NSC800 used the same multiplexed bus as the 8085, but there are slightly differences in some signals. IC1 is a GAL16V8. I have no Jedec file for it. Frank
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    How many drives looked like the st-4038?

    I attached a picture from my ST-4038 (w/o the LED). Frank
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    WTB: Seattle Computer Products SCP-500 Disk Master S-100 floppy controller

    I am looking for an Seattle Computer Products SCP-500 Disk Master S-100 floppy controller, that is for sale. Best Regards, Frank
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    SCP MS-DOS 2.0 File Transfer program

    I am now ready with my SCP 8086 computer. The Morrow HDC/DMA hard disk controller works now perfect. The Operating system is SCP MS-DOS 2.0. But i have no tool at the moment to transfer files between the old and the modern world. The floppy disk format i have available are 8" SD/SS and 8" DD/DS...
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    Wanted: Manual for the Seattle Computer Products 8086 board SCP-210

    I want to have a manual for the Seattle Computer Products 8086 board SCP-210. This is the follower of the SCP-200. For the SCP-200 there are scans of the manual in the web. For the SCP-210 i found no manual in the web. I attach a picture of the board. Thanks in advance, Frank
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    WTB: Morrow S-100 HDC/DMA Winchester controller

    I am looking for an Morrow S-100 HDC/DMA Winchester controller in good working condition. Frank
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    Morrow HDC/DMA Winchester controller

    Is there any user out there, who has an working(in use) Morrow HDC/DMA controller. Also looking for an service manual for the HDC/DMA, not the "normal" technical reference manual. Frank
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    Hard disk controller and driver for the SCP S-100 MS-DOS system??

    At the moment i have a working SCP 8086 System on my bench. It contains the 8086 CPU board SCP-210, two 64K Memory boards SCP-110, two 32K Memory boards CompuPro RAM-20, one Tarbell MD2022 Double Density floppy controller, one CPU Support board SCP-301 and the 4-channel serial bord SCP-400. I...
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    Seattle Computer Products 8086 Computer with "MS-DOS 1.25"

    Some more pictures.
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    Seattle Computer Products 8086 Computer with "MS-DOS 1.25"

    Hello, i am proud to show my new toy. An SCP 8086 in an CompuPro Enclosure. Getting from the US it contains the 8086 CPU board SCP-210, two 64K Memory boards SCP-110, two 32K Memory boards CompuPro RAM-20, one Tarbell MD2022 Double Density floppy controller, one CPU Support board SCP-301 and the...
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    74123 monostable multivibrator

    I found an internal schematic of the LS123. Frank
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    IMSAI 8080 Owner, please help...

    I own a IMSAI 8080 without an top cover. Now i want to build a new one like the original. Is there an IMSAI 8080 owner, who is able to scan the sides of the top cover with the vent slots in it? Also the exact thickness of the original sheetmetal, the height and depth of the cover are interesting...
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    Compaq "US Open System Board"

    Here are two of them. First is from an ProLinea 4/66, the second from an ProLinea 4/33. It was funny to see more of theese. Frank
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