H. P. Friedrichs (AC7ZL) Homepage
HPF Parts
Introduction
Anyone who is serious about experimenting with electronics, computers, or radio has a junk box—or two, or three, or ten... or a room, shed, or garage...You know what I'm talking about. These are the places where you squirrel away the RF transistors you got a great deal on, the power supply you salvaged from an old computer, or that sweet treadmill motor that you rescued from somebody else's garbage can. It's all stuff that's perfect for the tech projects that you're going to do "someday."
Unfortunately, if you're like me, you've noticed that reality ends up placing constraints on your dreams. There are endless projects to occupy our minds, but in the end time is limited, and so is storage space. Rather than let project treasures accumulate, it's sometimes best to choose where we shall focus our efforts and divest ourselves of those items that won't advance our immediate objectives.
So having said that, let me welcome you to my surplus page. Here I intend to post offerings of parts, materials, or equipment that might be of interest to other experimenters or hobbyists. Before reviewing the surplus items below, please read and understand my terms and conditions in the section at the bottom of the page.
Vintage Computer Stuff
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DEC Vax Circuit Cards/Documentation Item identifier: hpfparts016 Description: I have a quantity of miscellaneous circuit cards that I believe comprised part of a DEC VAX 4000 system. These parts include: QTY(1) Circuit card (32MB RAM) with part numbers: 5019062-01-A1PA GS-2 27590-6944 L4001-BE QTY(1) Circuit card (VAX 4000-300 CPU) with part numbers: L4000 KA670 These are historical items that should be in the hands of a collector or DEC enthusiast. I have no other information or details on these parts, and please bear in mind that I am not knowledgeable of DEC systems. Some of the descriptions were kindly provided by members of the classiccmp.org forum. Physical condition is basically good, it is believed that they were recovered from a functional computer. Price: Make offer. These boards are being offered as a set. |
| PDP 11/23 Embedded Computer System Item identifier: hpfparts017 Description: This item is what I believe to be a PDP 11/23 embedded computer system which was removed from a large piece of test equipment manufactured by General Radio. These computers were connected to two 8-inch floppy drives (not included) and a Winchester drive (not included.) Ribbon cables are also not included. The computer and peripheral cards are believed to have been functional when salvaged. Components include: QTY(1) Card Cage H9275-A QTY(1) DEC circuit card (KDF11-A 11/23 CPU) PN M8186 QTY(1) Scientific Micro Systems 1002001-0002 QTY(1) DEC (DELQA Ethernet interface) PN 7516 QTY(1) ClearPoint QRAM-2 (RAM?) 44B QTY(1) Scientific Micro Systems PN 1002001-0001 These are historical items that should be in the hands of a collector or DEC enthusiast. I have no other information or details on these parts, and please bear in mind that I am not knowledgeable of DEC systems. Some of the descriptions were kindly provided by members of the classiccmp.org forum. Physical condition is basically good, it is believed that they were recovered from a functional system. Price: Make offer. These boards/parts are being offered as a set. |
| PDP 11/23 Embedded Computer System Item identifier: hpfparts018 Description: This item is what I believe to be a PDP 11/23 embedded computer system which was removed from a large piece of test equipment manufactured by General Radio. These computers were connected to two 8-inch floppy drives (not included) and a Winchester drive (not included.) Ribbon cables are also not included. The computer and peripheral cards are believed to have been functional when salvaged. Components include: QTY(1) DEC circuit card (KDF11-A 11/23 CPU) PN M8186 QTY(1) Scientific Micro Systems 1002001-0002 QTY(1) DEC (DELQA Ethernet interface) PN 7516 QTY(1) ClearPoint QRAM-2 (RAM?) 11B QTY(1) Scientific Micro Systems PN 1002001-0001 These are historical items that should be in the hands of a collector or DEC enthusiast. I have no other information or details on these parts, and please bear in mind that I am not knowledgeable of DEC systems. Some of the descriptions were kindly provided by members of the classiccmp.org forum. Physical condition is basically good, it is believed that they were recovered from a functional system. Price: Make offer. These boards/parts are being offered as a set. |
| Assorted DEC Computer Boards Item identifier: hpfparts019 Description: This lot is an assortment of DEC computer boards of various types. Condition is unknown, but thought to be good. Parts include: QTY(1) SMS 1001939-0001 QTY(1) DEC M7957 QTY(1) DEC M8013 (RLV11 Disk controller?) QTY(1) DEC M8014 These are historical items that should be in the hands of a collector or DEC enthusiast. I have no other information or details on these parts, and please bear in mind that I am not knowledgeable of DEC systems. Some of the descriptions were kindly provided by members of the classiccmp.org forum. Physical condition is basically good, it is believed that they were recovered from functional systems. Price: Make offer. These boards/parts are being offered as individual pieces, or as a set if you're so inclined. |
| Assorted Texas Instruments TI-990 Computer Parts Item identifier: hpfparts015 Description: This lot is an assortment of parts associated with the Texas Instruments TI-990 minicomputer. Condition is unknown, but thought to be good. Parts include: "Das Blinkenlights" Front Panel Assembly with LED bit lamps, pushbuttons, and mode keyswitch (key not included) Floppy Disk Drive Bezel CRT CARD PN 911 TFDC Card (with white ceramic CPU) PN 96214.2261690.1F TFDC Card (with black epoxy CPU) PN 96214.2261690.1F Digital Interface Systems GPIB Card PN 990-060 CPU Card (with white ceramic CPU) PN 990/5 These are historical items that should be in the hands of a collector or TI-990 enthusiast. I have no other information or details on these parts, and please bear in mind that I am not knowledgeable of TI systems. Physical condition is basically good, it is believed that they were recovered from functional systems. Price: Make offer. These boards/parts are being offered as individual pieces, or as a set if you're so inclined. . |
| Digital Equipment Corporation DEC Microcomputer Products Handbook Item identifier: hpfparts020 Description: Digital Equipment Corporation DEC Microcomputer Products Handbook 1985. Paperback, approx 5 x 8 in. Good condition considering age. This is an historical item that should be in the hands of a collector or DEC enthusiast. Price: Make offer.
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| Digital Equipment Corporation DEC RSX-11M Mini Reference Item identifier: hpfparts021 Description: Digital Equipment Corporation DEC RSX-11M Mini Reference. Mini 13-ring binder, approx 6 x 7-1/2 in. Good condition considering age. This is an historical item that should be in the hands of a collector or DEC enthusiast. Price: Make offer.
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| Texas Instruments DS 990 Commerical Systems Manual Item identifier: hpfparts022 Description: Texas Instruments DS 990 Commerical Systems Manual part number 2270533-9702*B. 1981. Mini 3-ring binder, approx 7-1/2 x 9 in. Good condition considering age. This is an historical item that should be in the hands of a collector or TI 990 enthusiast. Price: Make offer.
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| Texas Instruments Model 990 Commerical TX5 Operating System Programmer's Guide Item identifier: hpfparts023 Description: Texas Instruments Model 990 Commerical TX5 Operating System Programmer's Guide part number 2276585-9701**. 1981. Standard 3-ring binder, approx 11 x 12 in. Good condition considering age. This is an historical item that should be in the hands of a collector or TI 990 enthusiast. Price: Make offer.
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| Hewlett Packard HP-1000 Quick Reference Guide Item identifier: hpfparts024 Description: Hewlett Packard HP-1000 Quick Reference Guide part number 92068-90003. 1981. Mini 6-ring binder, approx 5-1/2 x 7-1/2 in. Good condition considering age. This is an historical item that should be in the hands of a collector or HP-1000 enthusiast. Price: Make offer.
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| Hewlett Packard HP-1000 Customer Support Handbook Item identifier: hpfparts025 Description: Hewlett Packard HP-1000 Customer Support Handbook part number 5950-3767. 1980. Mini 3-ring binder, approx 8 x 9 in. Good condition considering age. This is an historical item that should be in the hands of a collector or HP-1000 enthusiast. Price: Make offer.
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Contact Information
If you are interested in anything on this page, please contact me through this email: Make sure you have read my terms and conditions first.
Terms and Conditions
My terms and conditions are simple. Please understand them before contacting me. If you contact me about items here, it will be presumed that you have read and agreed to these terms.
- This is not a business. Think "garage sale," "flea market", or "hamfest." It's supposed to be fun.
- I do my best to accurately describe whatever is posted here, but all items are offered AS-IS with no warranty of any kind. All sales or trades are final.
- Prices are as marked. In some cases, I'll invite offers. I may be willing to trade for something of equal value. Examples of items I might be interested in include core memory, early radio receivers/equipment (<1925), certain morse keys, QRP radio gear, antique science equipment or old technical books.
- For priced items, they will be distributed on a first-come, first serve basis. For make-offer items, they'll be distributed on a first-best-offer basis. If an item is listed it may still be available. If it's not, I don't have it anymore. Thus, if you see something you like, don't procrastinate!
- For payment I prefer cashier's checks or money orders. No personal checks, please.
- Buyer pays shipping. I can box things, measure and weigh them, and tell you what UPS will likely charge. If the actual shipping turns out to be a little more than the estimate, I'll eat the difference. For small items, it might make sense to use one of the post office's fixed-rate boxes.
- If you want insurance on a package, let me know. Otherwise, once a package has been dropped off with UPS or USPS, I'm done with it, and assume no further responsibility for it.
- This is important: You agree to hold me free from any liability of any kind associated with the acquisition or use of any item purchased from or traded with me. If, for example, your home-built domestic android goes on a murderous rampage because of a transistor or circuit board I sent you, well, you're on your own.
(created 08/29/15)
(revised: 11/03/16)