Differences

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--- acorncomputers [2018-01-06 21:14] – tim
+++ acorncomputers [2024-09-29 21:46] (current) – 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 9: / Line 11: @@
   * ROM fitted: Logotron LOGO
   * Marked "MJL" but probably donated to Hacklab.
-  * Batteries replaced in modern era.
+  * <del>Batteries replaced in modern era.</del>
+  * Leaking batteries removed and cleaned-up Aug 2024.
   * Case in reasonable condition but yellowed and dirty.
   * No Econet module.
-BBC Master 128 (01-AMB15-0011778)
+BBC Model B (Hacklab asset #27)
+  * Fully working
+  * Issue 7 board
+  * 8271 disk controller
+  * Econet
+  * ZIF ROM socket
+  * ROMs: OS 1.20, BASIC, DNFS 1.21, Wordwise
+  * PSU capacitors replaced 2018-01.
+  * Case in good condition. Clean and intact, minor scuffs only.
+Acorn Electron (07-ALA01-0053496):
+  * Acorn Electron Plus 3 floppy module (04-ALA13-0102022)
+  * 21V power supply
+BBC Model B (02-ANB03-1004089):
+  * Untested
+Peripherals:
+  * Single 5.25" 80-track double-sided floppy drive (Watford Electronics)
+  * Single 5.12" 40-track single-sided floppy drive (TEAC FD-55AV-10-U)
+  * External 6502 Second Processor
+  * Microvitec CUB 1451 monitor, serial number 128754
+  * AMX mouse
+  * STAG SE15 PROM Eraser [Al Bennett]
+Cables:
+  * Cassette DIN-7 to DIN-3 + 2.5mm remote
+  * 2x Cassette DIN-7 to DIN-7
+  * 3x Monitor RGB
+Books:
+  * BBC Microcomputer System User Guide
+  * The Advanced User Guide for the BBC Micro
+  * BBC Master Reference Manual Part One
+  * The Beginner's Programming Handbook in BASIC and Machine Code [Martin]
+Software:
+  * Acornsoft Elite (5.25" floppy)
+Other:
+  * Assorted ROMs and EEPROMs
+  * Assorted 5.25" floppies (data and blanks), cleaning kit
+Unsorted donation box containing:
+  * QJI Turbo SV121 Joystick (no cable connector)
+  * Assorted 5.25" floppies
+  * RGB to UHF modulator
+===== Stuff that we used to have =====
+Tim adopted the equipment that we couldn't justify storing the in lab any more. If you are interested in any of it, please ask as some of it may still be available.
+<del>BBC Master 128 (01-AMB15-0011778)
   * No PSU
@@ Line 23: / Line 87: @@
   * 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)
+  * OS ROM appears upgraded with a stacked socket (VLI / 551 VM 9481 / 231024-1028 / 0201,843-0 / Acorn / SING-T)</del>
-BBC Model B (Hacklab asset #27)
+<del>BBC Model B (Hacklab asset #21)
-  * 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
@@ Line 43: / Line 96: @@
   * WE 32K RAMCARD
   * ROM fitted: 1770 DFS
-  * ROM fitted: WE 3K RAM
+  * ROM fitted: WE 32K RAM
   * No Econet
   * No keyboard
-  * Not working (motherboard known to be faulty)
+  * Not working (motherboard known to be faulty)</del>
 Accessories
   * Microvitec CUB 1451, serial number 128754, metal/cube, working, dirty, missing one case screw
-  * Microvitec CUB 1451/DS4, serial number 272506, plastic
+  * <del>Microvitec CUB 1451/DS4, serial number 272506, plastic</del>
   * RGB cable - 2m moulded, new
   * RGB cable - 1m DIY
-  * Watford Electronics dual 5.25" floppy drives in monitor plinth
+  * 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]
-Parts
+<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
+  * Model B keyboard 05042 - all keys present, reasonable condition but untested, ribbon cable included</del>
 Box 1
@@ Line 80: / Line 135: @@
     * 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 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
-  * BBC Model B PSU, C2 capacitor replaced 2013-03-05
+  * <del>BBC Model B PSU, C2 capacitor replaced 2013-03-05</del>
   * AMX mouse
-  * Set parts from a Model B: 4 short screws, BNC connector, short wire
+  * <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
-  * Model B keyboard ribbon cable
+  * <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)
+  * 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) - Belongs to Al
+  * 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
-  * Books (see separate list)
+  * Blank 5.25" floppy discs
-Box 3
-  * Books (see separate list)
   * Cassette recorder
-  * 5.25" blank floppy discs
   * R6522P ICs (x3)
   * The Hobbit (cassette for BBC Micro, Beam Software 1983)
@@ Line 111: / Line 162: @@
   * Watford Electronics 12 ROM board (with selection of ROMs fitted)
   * Solidisk BBC Sideways RAM board
-  * ZIF ROM socket
+  * ZIF ROM socket extension
+  * Assorted screws
+  * ZIF socket (component part only)
-Books
+===== Books =====
 ^ ISBN ^ Title ^ Author ^ Notes ^
@@ Line 140: / Line 193: @@
 | 0333262867 | Continuing BASIC | P E Gosling |
 | 0905104153 | Software Secrets - Input, Output and Data Storage Techniques | Graham Beech |
-------------------
-| Serial | Owner | Model | Spec | Status |
-| 01-AMB15-0065278 | Tim | BBC Master | Econet | Working |
-| 01-AMB15-0042078 | Tim | BBC Master | Econet, RetroClinic DataCentre | Working |
-| Hacklab-22 | Tim | BBC Model B | | Faulty |
-| none | Al | BBC Model B | Original box | Working |
-| 01-AMB15-0222432 | Martin | BBC Master | | Working |
-| Hacklab-27 | Martin/Hacklab? | BBC Model B | | |
-| 01-AMB15-0011778 | Hacklab | BBC Master | | Incomplete |
-| Hacklab-23 | Hacklab | BBC Model B | | |
-| Hacklab-21 | Hacklab | BBC Model B | | |
-===== Beebs =====
-BBC Model B (Hacklab asset 27):
-  * no PSU
-  * missing composite video connector
-  * missing screws.
-  * may belong to Martin
-  * continuous tone at boot, blank screen
-BBC Model B (006447, Hacklab asset 23):
-  * 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
-  * Watford 32K sideways RAM
-  * 1770 DFS
-  * 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):
-  * Belongs to Al/Tim
-  * Makes continuous noise
-BBC Model B:
-  * In box
-  * Fully working
-  * Belongs to Al, do not hack.
-BBC Master 128 (01-AMB-0011778):
-  * no PSU, damaged cartridge slot
-  * missing "8" key
-BBC Master 128 (01-AMB15-0222432):
-  * PSU present, CMOS battery replaced in 2013
-  * Watford "Transferom" ROM
-  * case slightly marked
-  * Belongs to Martin
-===== Peripherals =====
-HCR Electronics EPROM programmer: 1MHz bus interface. (tested, not detected by the software so needs fettling)
-Dual 5.25" floppy drives with integrated monitor plinth.
-(more peripherals to be catalogued.)
 ===== Notes =====
@@ Line 216: / Line 199: @@
 [[http://wouter.bbcmicro.net/hardware/repair/index.html|Some debugging information]]
 ===== See Also =====
-We're going to build an [[econet]].
+We built an [[econet]], but it's been disassembled now.