I got stuck trying to fix this 40 year old RAM card (AST MegaPlus II) @adriansdigitalbasement
I got stuck trying to fix this 40 year old RAM card (AST MegaPlus II)  @adriansdigitalbasement
Uploaded May 2024 | Updated September 2026, 2 weeks ago
-- Links

AST MegaPlus II Manual and Schematics:
minuszerodegrees.net/manuals/AST%20MegaPlus%20II%20-%20Users%20Manual%20-%20August%2083.pdf

Github Repo for ISA Card:
github.com/misterblack1/isa-ram-expansion

Minus Zero Degrees Diag ROM for XT
minuszerodegrees.net/supersoft_landmark/Supersoft%20Landmark%20ROM.htm

Adrian's Digital Basement Merch store:
my-store-c82bd2-2.creator-spring.com

Adrian's Digital Basement ][ (Second Channel)
youtube.com/channel/UCbtwi4wK1YXd9AyV_4UcE6g

Support the channel on Patreon:
patreon.com/adriansdigitalbasement

My GitHub repository:
github.com/misterblack1?tab=repositories

-- Tools

Deoxit D5:
amzn.to/2VvOKy1
store.caig.com/s.nl/it.A/id.1602/.f

O-Ring Pick Set: (I use these to lift chips off boards)
amzn.to/3a9x54J

Elenco Electronics LP-560 Logic Probe:
amzn.to/2VrT5lW

Hakko FR301 Desoldering Iron:
amzn.to/2ye6xC0

Rigol DS1054Z Four Channel Oscilloscope:
rigolna.com/products/digital-oscilloscopes/1000z

Head Worn Magnifying Goggles / Dual Lens Flip-In Head Magnifier:
amzn.to/3adRbuy

TL866II Plus Chip Tester and EPROM programmer: (The MiniPro)
amzn.to/2wG4tlP
aliexpress.com/item/33000308958.html

TS100 Soldering Iron:
amzn.to/2K36dJ5
ebay.com/itm/TS100-65W-MINI-Digital-OLED-Programmable-Soldering-Iron-Anti-static-Structure/113382669853

EEVBlog 121GW Multimeter:
eevblog.com/product/121gw

DSLogic Basic Logic Analyzer:
amzn.to/2RDSDQw
ebay.com/itm/USB-Logic-DSLogic-Basic-Analyzer-16Ch-100MHz-4Ch-400MHz-Xilinx-Spartan-6-FPGA/202543965672

Magnetic Screw Holder:
amzn.to/3b8LOhG
harborfreight.com/4-inch-magnetic-parts-tray-90566.html

Universal ZIP sockets: (clones, used on my ZIF-64 test machine)
ebay.com/itm/14-16-18-20-24-28-32-40-pin-IC-Test-Universal-ZIF-Socket-Fs/303206721971

RetroTink 2X Upconverter: (to hook up something like a C64 to HDMI)
retrotink.com

Plato (Clone) Side Cutters: (order five)
ebay.com/itm/1-2-5-10PCS-Micro-Scissor-125mm-PLATO-170-Electronics-Cutter-Side-Cutting-Pliers/163458746184

Heat Sinks:
aliexpress.com/item/32537183709.html

Little squeezy bottles: (available elsewhere too)
amzn.to/3b8LOOI

--- Instructional videos

My video on damage-free chip removal:
youtube.com/watch?v=XQVjwPsVFd8

--- Music

Intro music and other tracks by:
Nathan Divino
@itsnathandivino
I got stuck trying to fix this 40 year old RAM card (AST MegaPlus II)Restoring a Commodore 1702 monitor using a main board from 2023The PicoGUS: An ingenious multifunction ISA sound cardThe VIC-II Kawari is a game changer for the NTSC Commodore 64The IBM PS/1 was the followup to the disastrous PCjr and its pretty good!12V on a 5V line almost killed this Mac SE/30We ran Doom on a 40 year old printer controller (Agfa Compugraphic 9000PS)Adding a RGB input to a Sony Trinitron (KV-9PT60 / KV-9PT50)Leading Edge Model D RepairIs an IBM PC usable at the same clock speed as an Apple II?Is the Casablanca a disguised Amiga? Its complicated.Lets test a 50 year old MOS 6502 CPU
Adrians Digital Basement |

I got stuck trying to fix this 40 year old RAM card (AST MegaPlus II)

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