BBC Master 128: The evolved 8-bit computer from Acorn
In the basement today we have quite a rare machine (for North America:) The BBC Master 128. It’s an evolution of the original Acorn BBC Micro from 1981. My first task is to service the PSU and convert it to 120v, then see if this machine is working.
0:00 Intro
21:10 PSU service, conversion to 120V
41:38 First power up of the computer
--- Video Links
My old video showing off the two BBC Micro machines I brought back from the UK:
BBC Micro PSU repair and 120v conversion:
BBC Master:
65C12 datasheet:
Performing a CMOS reset on the BBC Master:
Adrian’s Digital Basement Merch store:
Adrian’s Digital Basement ][ (Second Channel)
Support the channel on Patreon:
-- Tools
Deoxit D5:
O-Ring Pick Set: (I use these to lift chips off boards)
Elenco Electronics LP-560 Logic Probe:
Hakko FR301 Desoldering Iron:
Rigol DS1054Z Four Channel Oscilloscope:
Head Worn Magnifying Goggles / Dual Lens Flip-In Head Magnifier:
TL866II Plus Chip Tester and EPROM programmer: (The MiniPro)
TS100 Soldering Iron:
EEVBlog 121GW Multimeter:
DSLogic Basic Logic Analyzer:
Magnetic Screw Holder:
Universal ZIP sockets: (clones, used on my ZIF-64 test machine)
RetroTink 2X Upconverter: (to hook up something like a C64 to HDMI)
Plato (Clone) Side Cutters: (order five)
Heat Sinks:
Little squeezy bottles: (available elsewhere too)
--- Links
My GitHub repository:
Commodore Computer Club / Vancouver, WA – Portland, OR – PDX Commodore Users Group
--- Instructional videos
My video on damage-free chip removal:
--- Music
Intro music and other tracks by:
Nathan Divino
@itsnathandivino
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