Differences

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--- acorncomputers [2018-01-06 17:54] – tim
+++ acorncomputers [2019-01-18 23:49] – tim
@@ Line 1: / Line 1: @@
-====== Acorn Computers at the Lab ======
+====== Acorn Computers ======
-===== New Audit 2018-01 =====
+===== Inventory =====
+Following a clear-out, we now have one BBC Master and one Model B in good working order.
 BBC Master 128 (01-AMB15-0222432)
@@ Line 13: / Line 15: @@
   * No Econet module.
-------------------
+BBC Model B (Hacklab asset #27)
-| Serial | Owner | Model | Spec | Status |
+  * Fully working
-| 01-AMB15-0065278 | Tim | BBC Master | Econet | Working |
+  * Issue 7 board
-| 01-AMB15-0042078 | Tim | BBC Master | Econet, RetroClinic DataCentre | Working |
+  * 8271 disk controller
-| Hacklab-22 | Tim | BBC Model B | | Faulty |
+  * Econet
-| none | Al | BBC Model B | Original box | Working |
+  * ZIF ROM socket
-| 01-AMB15-0222432 | Martin | BBC Master | | Working |
+  * ROMs: OS 1.20, BASIC, DNFS 1.21, Wordwise
-| Hacklab-27 | Martin/Hacklab? | BBC Model B | | |
+  * PSU capacitors replaced 2018-01.
-| 01-AMB15-0011778 | Hacklab | BBC Master | | Incomplete |
+  * Case in good condition. Clean and intact, minor scuffs only.
-| Hacklab-23 | Hacklab | BBC Model B | | |
-| Hacklab-21 | Hacklab | BBC Model B | | |
-===== Beebs =====
+Peripherals:
-BBC Model B (Hacklab asset 27):
+  * Single 5.25" 80-track floppy drive
-  * no PSU
+  * External 6502 Second Processor
-  * missing composite video connector
+  * Microvitec CUB 1451 monitor, serial number 128754
-  * missing screws.
+  * AMX mouse
-  * may belong to Martin
-  * continuous tone at boot, blank screen
-BBC Model B (006447, Hacklab asset 23):
+Cables:
-  * Donated by Stephen Giles
-  * PSU present (may be the faulty PSU awaiting replacement capacitor)
-  * <del>Watford DFS</del>
-  * <del>Solidisk 128K sideways RAM kit</del>
-  * <del>external ZIF socket</del>
-  * case dirty but no id markings
-  * keyboard missing
-  * missing RAM ICs
-BBC Model B (Hacklab asset 21): Watford 32K ramcard
+  * Cassette DIN-7 to DIN-3 + 2.5mm remote
-  * Watford 32K sideways RAM
+  * 2x Cassette DIN-7 to DIN-7
-  * 1770 DFS
+  * 3x Monitor RGB
-  * 3.5mm speaker jack
-  * 2 external switches (not connected)
-  * case dirty but no id markings
-  * donated by Stephen Giles
-  * broken: some chips missing, reports "Illegal address" at boot
-  * Issue 7 motherboard
-BBC Model B (Hacklab asset 22):
+Books:
-  * Belongs to Al/Tim
-  * Makes continuous noise
-BBC Model B:
+  * BBC Microcomputer System User Guide
-  * In box
+  * The Advanced User Guide for the BBC Micro
-  * Fully working
+  * BBC Master Reference Manual Part One
-  * Belongs to Al, do not hack.
+  * The Beginner's Programming Handbook in BASIC and Machine Code [Martin]
-BBC Master 128 (01-AMB-0011778):
+Software:
-  * no PSU, damaged cartridge slot
-  * missing "8" key
-BBC Master 128 (01-AMB15-0222432):
+  * Acornsoft Elite (5.25" floppy)
-  * PSU present, CMOS battery replaced in 2013
-  * Watford "Transferom" ROM
-  * case slightly marked
-  * Belongs to Martin
-===== Peripherals =====
+Unsorted donation box containing:
-HCR Electronics EPROM programmer: 1MHz bus interface. (tested, not detected by the software so needs fettling)
+  * Donated Model B
+  * Donated Electron with Plus 3
+  * Joystick
-Dual 5.25" floppy drives with integrated monitor plinth.
+===== Stuff that we used to have =====
-(more peripherals to be catalogued.)
+<del>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)</del>
+<del>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)</del>
+Accessories
+  * Microvitec CUB 1451, serial number 128754, metal/cube, working, dirty, missing one case screw
+  * <del>Microvitec CUB 1451/DS4, serial number 272506, plastic</del>
+  * 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.
+  * Stag SE15 PROM eraser [Al]
+<del>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</del>
+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 (<del>3x</del> unopened, for cassette recorder)
+  * 7-pin DIN to 7-pin DIN (2x)
+  * 5-pin DIN to 3.5mm plug
+  * <del>BBC Model B PSU, C2 capacitor replaced 2013-03-05</del>
+  * AMX mouse
+  * <del>Set parts from a Model B: 4 short screws, BNC connector, short wire</del>
+  * 5.25" floppy drive cleaning kit
+  * 3.5" floppy disc
+  * <del>Model B keyboard ribbon cable</del>
+  * 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 =====
@@ Line 87: / Line 180: @@
 [[http://wouter.bbcmicro.net/hardware/repair/index.html|Some debugging information]]
+===== 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]].