acorncomputers
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Acorn Computers at the Lab
BBC Master 128 (01-AMB15-0222432)
- fully working
- ROM fitted: WE Transferom DD
- ROM fitted: Logotron LOGO
- Marked “MJL” but probably donated to Hacklab.
- Batteries replaced in modern era.
- Case in reasonable condition but yellowed and dirty.
- No Econet module.
BBC Master 128 (01-AMB15-0011778)
- No PSU
- No Econet module
- No TV modulator
- Minor case damage (one missing cartridge slot cover and spring, cracked cartridge slot, minor scratching)
- Motherboard has wires soldered to power connectors
- Econet header is bent
- Keyboard missing “8” key
- Keyboard has damaged ribbon cable
- OS ROM appears upgraded with a stacked socket (VLI / 551 VM 9481 / 231024-1028 / 0201,843-0 / Acorn / SING-T)
BBC Model B (Hacklab asset #27)
- Issue 7
- fully working
- Composite video connector not fitted
- Trailing patch wire on motherboard (not connected to anything)
- No Econet
- OS and BASIC ROMs only
- No screws
- Case: yellowed, dirty, faint marker pen, ROM slot open, clear keystrip chipped and broken (repaired with tape)
BBC Model B (Hacklab asset #21)
- Issue 7
- Case: fair, dirty, no cracks/breaks/scratching, modifications to rear panel (3.5mm socket, two toggle switches, two other holes)
- WE 1770 upgrade
- WE 32K RAMCARD
- ROM fitted: 1770 DFS
- ROM fitted: WE 32K RAM
- No Econet
- No keyboard
- Not working (motherboard known to be faulty)
Accessories
- Microvitec CUB 1451, serial number 128754, metal/cube, working, dirty, missing one case screw
- Microvitec CUB 1451/DS4, serial number 272506, plastic
- RGB cable - 2m moulded, new
- RGB cable - 1m DIY
- RGB cable - 1m DIY
- Watford Electronics dual 5.25“ floppy drives in monitor plinth - Switchable 40/80 track. Appears to work.
Parts
- Model B keyboard 21242 - no keys, some missing switches
- Model B keyboard 12252 - all keys present, some track damage and repairs, bent connector
- Model B keyboard 05042 - all keys present, reasonable condition but untested, ribbon cable included
Box 1
- 6502 Second Processor (external “cheese wedge”) 03-ANC01-1005471 - working
- Component box containing:
- EPROMs
- MC68854P
- DM74LS245N (x2)
- SN74ALS245AN (x4)
- SN74LS245N (x2)
- HM6264LP-15
- Wordwise Plus
- ARM
- ADFS
- Micron Plus 1.30
- XTALK 2.08W
- WE DFS
- R65C02P3 11450-13 8642
- 8143 SY6502A
- 7-pin DIN to 3-pin DIN and 2.5mm plug (3x, unopened, for cassette recorder)
- 7-pin DIN to 7-pin DIN (2x)
- 5-pin DIN to 3.5mm plug
- BBC Model B PSU, C2 capacitor replaced 2013-03-05
- AMX mouse
- Set parts from a Model B: 4 short screws, BNC connector, short wire
- 5.25” floppy drive cleaning kit
- 3.5“ floppy disc
- Model B keyboard ribbon cable
- 5.25” floppy drive mechanism (marked “Do not use, I eat discs”)
- Watford Electronics single 5.25“ floppy drive (computer-powered) - 80 track only, appears to work.
- Watford Electronics dual/stacked 5.25” floppy drive (computer-powered) - 40 track only, Belongs to Al
Box 2
- Books (see separate list)
- Assorted 5.25“ floppy discs
- Blank 5.25” floppy discs
- Cassette recorder
- R6522P ICs (x3)
- The Hobbit (cassette for BBC Micro, Beam Software 1983)
- HCR Electronics Micron Plus 64K EPROM Programmer
- Acornsoft Elite (5.25“ for BBC Micro)
- Dust cover for BBC Model B
- Watford Electronics ROM/RAM board
- Watford Electronics 12 ROM board (with selection of ROMs fitted)
- Solidisk BBC Sideways RAM board
- ZIF ROM socket extension
- Assorted screws
- ZIF socket (component part only)
Books
| ISBN | Title | Author | Notes |
|---|---|---|---|
| 0246121033 | 21 Games for the BBC Micro | Mike James, S M Gee, Kay Ewbank | |
| 0201146045 | Start Programming with the Electron | Masoud Yazdani | |
| 0907563147 | Let Your BBC Micro Teach You To Program | Tim Hartnell | |
| 0563165340 | The Book of Listings - Fun Programs for the BBC Microcomputer | Tim Harnell, Jeremy Ruston | Al |
| 0563165588 | BBC Microcomputer System User Guide | Al | |
| 0563165588 | BBC Microcomputer System User Guide | damaged | |
| - | BBC Microcomputer System Master Compact Welcome Guide | ||
| 0860822699 | 30 Hour BASIC | Clive Prigmore | Copy #1 |
| 0860822699 | 30 Hour BASIC | Clive Prigmore | Copy #2 |
| 0521217040 | Illustrating BASIC (A Simple Programming Language) | Donald Alcock | |
| - | BBC Microcomputer System Master Series Reference Manual Part 1 | ||
| 0946827001 | The Advanced User Guide for the BBC Microcomputer | Bray, Dickens & Holmes | |
| - | An Introduction to Wordwise Plus | Jacquetta Megarry | |
| - | Wordwise Plus Reference Manual | John Coll, Andrew Myers | |
| - | The Cumana Disk Drive Guide for the BBC Microcomputer | ||
| - | Pace Micro Technology - Disc Filing System Manual | ||
| - | The Beginner's Programming Handbook in BASIC & Machine Code | Lisa Watts, Gaby Waters | Martin |
| 0906812216 | Easy Programming for the BBC Micro | Eric Deeson | |
| 0521277302 | A child's guide to The BBC Micro | John Dewhirst | |
| 0712603530 | Microguide for the BBC Micro | Professor Peter Morse, Brian Hancock | |
| 0003832236 | The BBC Micro Advanced Reference Guide | Bruce Smith | |
| 0408014377 | Exploiting BBC BASIC | A P Stephenson, D J Stephenson | |
| 0333262867 | Continuing BASIC | P E Gosling | |
| 0905104153 | Software Secrets - Input, Output and Data Storage Techniques | Graham Beech |
Notes
Todo
- Decide what to keep
- Clean the ones that we keep
- Fixes to the kept Model B:
- Remove stray jumper wire
- Re-fit composite video connector
- Swap broken clear keystrip with other Model B
- Consider 1770 upgrade (take from other Model B)
- Fit Econet to kept computers
- Test floppy drives
Keep:
- one BBC Master (the one that's working)
- one BBC Model B (the one that's working)
- single 5.25” floppy drive
- 6502 Second Processor (they're rare)
- 1 CUB monitors (the one with the classic boxy metal case)
- a few books
Dispose of:
- Non-working BBC Master
- Non-working BBC Model B
- floppy-drive/monitor-stand
- 1 CUB monitor
See Also
We're going to build an econet.
acorncomputers.1515422785.txt.gz · Last modified: 2018-01-08 14:46 by tim