Let's have an in-depth look at microdrives, the storage technology of the Sinclair QL (and to a lesser extend the ZX Spectrum as well). It turns out one of the microdrives wasn't working, so I did some fault-finding and ended up replacing the microdrive ULA itself (which apparently it's not an uncommon problem) to repair the microdrive. Later I looked into re-felting a cartridge to make it functional again, and finally, I ran some speed tests vs floppy disks and even traditional audio tapes.
Chapters: 00:00 Intro 00:32 What is a microdrive? 04:07 Testing the microdrives 04:55 Microdrive fault finding 07:01 ULA diagnostics 16:43 ULA replacement 20:19 Re-felting cartridges 23:25 Microdrive performance 28:45 Conclusion
Support Noel's Retro Lab on Patreon: https://www.patreon.com/NoelsRetroLab
This week we're getting packages from all over the world! Some really interesting Sinclair QL accessories, some TI99 cartridges and expansions, an active SCART splitter (demo included), and a book!
Links:
vRetro https://vdrivezx.com/
Italian TI99 club https://www.ti99iuc.it/web/
Active SCART Buffer https://www.js-technology.com/store/index.php?id_product=59&controller=product
More awesome music by McKlain: https://www.mcklain.com
You can also support Noel's Retro Lab on YouTube by joining this channel:
https://www.youtube.com/channel/UC2-SP1bYi3ueKlVU7I75wFw/join
Connect with Noel's Retro Lab:
Discord ➤ https://discord.gg/ETcCh6J
Facebook ➤ https://www.facebook.com/NoelsRetroLab
Twitter ➤ https://twitter.com/NoelsRetroLab
Instagram ➤ https://www.instagram.com/NoelsRetroLab
Mailing list ➤ https://noelsretrolab.com
...
https://www.youtube.com/watch?v=u5JTxd61DcU
To try everything Brilliant has to offer—free—for a full 30 days, visit http://brilliant.org/NoelsRetroLab/ . The first 200 of you will get 20% off Brilliant’s annual premium subscription.
My neighbor surprised me by giving me his childhood TI99/4A and a bunch of accessories and he asked to come by the lab if I got it working. Today I get to pay him back, show him his restored computer and try to recover a game from cassette that was lost for 38 years.
Support Noel's Retro Lab on Patreon: https://www.patreon.com/NoelsRetroLab
You can also support Noel's Retro Lab on YouTube by joining this channel:
https://www.youtube.com/channel/UC2-SP1bYi3ueKlVU7I75wFw/join
Links:
Gaming Alexandria https://www.gamingalexandria.com
Tape dumping tutorial by Dustin https://www.youtube.com/watch?v=OWpTHZC53YE
Chapters:
00:00 Intro
02:59 Power supply
03:56 Video cable and test
06:03 Disassembly
07:20 Cassette tapes
09:11 Testing
09:51 Data recovery
14:35 Loading on the TI99/4A
17:27 Putting it all together
20:41 John's visit
Music tracks:
Funky Stars by McKlain https://mcklain.bandcamp.com/track/funky-stars-amstrad-cpc-true-8bit-version
Battro OST by McKlain https://mcklain.bandcamp.com/track/battro-ost
More awesome music by McKlain: https://www.mcklain.com
Plan music by Marcus Lim https://www.youtube.com/watch?v=EAS4t1IKm1A
? Tools I use ➤ https://noelsretrolab.com/tools.html
This video was sponsored by Brilliant.
Connect with Noel's Retro Lab:
Discord ➤ https://discord.gg/ETcCh6J
Facebook ➤ https://www.facebook.com/NoelsRetroLab
Twitter ➤ https://twitter.com/NoelsRetroLab
Instagram ➤ https://www.instagram.com/NoelsRetroLab
Mailing list ➤ https://noelsretrolab.com
...
https://www.youtube.com/watch?v=t1nQ_1x7tjw
FlexiSpot E7 standing desk: https://bit.ly/3EVNWJX
PCBWay https://www.pcbway.com
The Agon Light claims to be the fastest and cheapest 8-bit computer in the world. Is that true? Let's have a look at it and learn about its surprising "re-writable" architecture.
Links:
Agon Light https://www.thebyteattic.com/p/agon.html
Agon Light Github https://github.com/TheByteAttic/AgonLight
TheByteAttic channel https://www.youtube.com/@thebyteattic
BBC Basic port https://www.bbcbasic.co.uk/bbcbasic/z80basic.html
BASIC benchmarck page https://docs.google.com/spreadsheets/d/1bfWSR2Ngy1RPedS6j-M607eeAhsd40-nhAfswILzzS8/edit#gid=22692068
Agon Console8 https://heber.co.uk/agon-console8/
Agon Console 8 Github https://github.com/AgonConsole8/agon-vdp
Agon Light at PCBWay https://www.pcbway.com/project/shareproject/Agon_Light_abf1fa16.html
Support Noel's Retro Lab on Patreon: https://www.patreon.com/NoelsRetroLab
You can also support Noel's Retro Lab on YouTube by joining this channel:
https://www.youtube.com/channel/UC2-SP1bYi3ueKlVU7I75wFw/join
Chapters:
00:00 Intro
03:14 Exterior
04:43 Specs
05:31 BASIC and benchmark
10:04 Architecture
14:13 Re-writeable architecture
19:23 Updating firmware
20:46 Level 1: BASIC
21:58 Level 2: Z80
23:43 Level 3: VDP
25:36 Getting one
27:06 Conclusion
Music tracks:
Funky Stars by McKlain https://mcklain.bandcamp.com/track/funky-stars-amstrad-cpc-true-8bit-version
Battro OST by McKlain https://mcklain.bandcamp.com/track/battro-ost
More awesome music by McKlain: https://www.mcklain.com
? Tools I use ➤ https://noelsretrolab.com/tools.html
Connect with Noel's Retro Lab:
Discord ➤ https://discord.gg/ETcCh6J
Facebook ➤ https://www.facebook.com/NoelsRetroLab
Twitter ➤ https://twitter.com/NoelsRetroLab
Instagram ➤ https://www.instagram.com/NoelsRetroLab
Mailing list ➤ https://noelsretrolab.com
...
https://www.youtube.com/watch?v=CQ_C_RvJJ9A
Let's set up the new electronics lab and see where you should be allocating your tool budget and where you can skimp a bit.
Support Noel's Retro Lab on Patreon: https://www.patreon.com/NoelsRetroLab
You can also support Noel's Retro Lab on YouTube by joining this channel:
https://www.youtube.com/channel/UC2-SP1bYi3ueKlVU7I75wFw/join
?? Hand tools ??
• Stanley screwdriver set https://amzn.to/3Bgg5L1
• Precision screwdriver set https://amzn.to/3RE3q9M
• Wera screwdriver set https://amzn.to/3TKbFTx
• Schmitz pliers https://amzn.to/3cM0WHP
• Hakko cutters https://amzn.to/3TINx3R
• Tweezers set https://amzn.to/3BgJu7u
?? Multimeter ??
• CircuitSpecialists https://www.circuitspecialists.com/digital-multimeter-csi2010.html
• UNI-T https://amzn.to/3ASK9KX
• Kaiweets KM601 https://amzn.to/3KNjsfj
• Fluke 117 https://amzn.to/3BfWiLG
• Bside A10 https://amzn.to/3cJ77fP
?? Soldering ??
• ToAuto DS90 solder station https://amzn.to/3edDxPI
• Desoldering pump https://amzn.to/3RzgQUE
• Kester solder https://amzn.to/3REeQdE
• United Static Control ESD mat https://www.ultrastatinc.com/Bench_options_electratherm.html
?? Oscilloscope ??
• Hantek DS5202P https://www.circuitspecialists.com/hantek-200mhz-digital-storage-oscilloscope-dso5202p.html
• Hantek 2D42 handheld https://amzn.to/3RvGSby
• Hantek 6022BE USB https://amzn.to/3CZpyHD
?? Desoldering ??
• ZD 915 desoldering station https://amzn.to/3BcXsaI
• 858D hot air station https://amzn.to/3QqKkDm
?? Power supply ??
• Siglent SPD3303X-E https://amzn.to/3cRxksn
• Korad PSU https://amzn.to/3RHx9Pn
?? Magnifying tools ??
• Light with 5X magnifying glass https://amzn.to/3cIthik
• Magnifying glasses https://amzn.to/3TLNfsO
• Andonstar AD249MS https://amzn.to/3RlfCMW
• Andonstar ADSM302 https://amzn.to/3wTCNpu
Chapters:
00:00 Intro
00:39 Work surface
02:14 Hand tools
05:14 #notsponsored
05:26 Multimeters
09:50 Solder station
13:22 ESD mat
16:49 Oscilloscopes
20:19 Desoldering
21:51 Bench power supply
23:05 Magnifying tools
25:16 Monitor and computer
26:19 Conclusion
Music tracks:
Funky Stars by McKlain https://mcklain.bandcamp.com/track/funky-stars-amstrad-cpc-true-8bit-version
Battro OST by McKlain https://mcklain.bandcamp.com/track/battro-ost
More awesome music by McKlain: https://www.mcklain.com
? Tools I use ➤ https://noelsretrolab.com/tools.html
Connect with Noel's Retro Lab:
Discord ➤ https://discord.gg/ETcCh6J
Facebook ➤ https://www.facebook.com/NoelsRetroLab
Twitter ➤ https://twitter.com/NoelsRetroLab
Instagram ➤ https://www.instagram.com/NoelsRetroLab
Mailing list ➤ https://noelsretrolab.com
#electronics #tools
...
https://www.youtube.com/watch?v=dR8nqJzrnSg
This episode is sponsored by PCBWay https://www.pcbway.com
Cassette tapes degrade over time, and eventually you may not be able to read the data stored in them. In this episode, we dive into the technical details of cassette tape data recovery: how data is encoded, what we can do to recover it, and what kind of tools we can use.
Support Noel's Retro Lab on Patreon: https://www.patreon.com/NoelsRetroLab
You can also support Noel's Retro Lab on YouTube by joining this channel:
https://www.youtube.com/channel/UC2-SP1bYi3ueKlVU7I75wFw/join
Links:
- SVI-CAS https://www.msx.org/forum/msx-talk/hardware/svi-cas-image-player-initial-announcement?page=0
- TI99/4A tape format http://www.unige.ch/medecine/nouspikel/ti99/cassette.htm#Cassette%20tape%20format
- Classic99 emulator https://github.com/tursilion/classic99
- CS1er http://www.cs1er.com/
- DumpListEditor http://bugfire2009.ojaru.jp/download.html
Chapters:
00:00 Intro
01:36 Amplification
02:22 How is data stored?
07:15 TI99/4A format
10:13 Emulator
12:00 DumpListEditor
13:28 CS1er
15:50 Merging recordings
17:59 GOGFIGHT
19:12 Conclusion
Music tracks:
Funky Stars by McKlain https://mcklain.bandcamp.com/track/funky-stars-amstrad-cpc-true-8bit-version
Battro OST by McKlain https://mcklain.bandcamp.com/track/battro-ost
More awesome music by McKlain: https://www.mcklain.com
? Tools I use ➤ https://noelsretrolab.com/tools.html
Connect with Noel's Retro Lab:
Discord ➤ https://discord.gg/ETcCh6J
Facebook ➤ https://www.facebook.com/NoelsRetroLab
Twitter ➤ https://twitter.com/NoelsRetroLab
Instagram ➤ https://www.instagram.com/NoelsRetroLab
Mailing list ➤ https://noelsretrolab.com
#cassette #retro
...
https://www.youtube.com/watch?v=Woko_i58w4c
This episode is sponsored by PCBWay https://www.pcbway.com
Let's use a Raspberry Pi Zero and the RGB to HDMI project to convert a CGA signal into something a modern LCD can understand. This is the third option to replace the horrible LCD on the Amstrad PPC with a modern one. And of course, we need to figure out how to fit everything back inside the case. I'm really pleased with the final result!
Support Noel's Retro Lab on Patreon: https://www.patreon.com/NoelsRetroLab
Chapters:
00:00 Intro
00:22 Recap
01:14 Revisiting GBS8200
02:12 RGB to HDMI
04:01 Building the RGBtoHDMI
06:58 Programming the CPLD
08:37 Connecting to CGA signal
09:29 Testing it with the Amstrad
12:02 RGBtoHDMI cost breakdown
13:22 Fitting everything inside the case
19:30 Missing colors!
22:13 Single-button control
23:36 Final test
24:42 Conclusions
Links:
RGBtoHDMI project page https://github.com/hoglet67/RGBtoHDMI
Questions thread https://stardot.org.uk/forums/viewtopic.php?f=3&t=14430
More awesome music by McKlain: https://www.mcklain.com
You can also support Noel's Retro Lab on YouTube by joining this channel:
https://www.youtube.com/channel/UC2-SP1bYi3ueKlVU7I75wFw/join
? Tools I use ➤ https://noelsretrolab.com/tools.html
Connect with Noel's Retro Lab:
Discord ➤ https://discord.gg/ETcCh6J
Facebook ➤ https://www.facebook.com/NoelsRetroLab
Twitter ➤ https://twitter.com/NoelsRetroLab
Instagram ➤ https://www.instagram.com/NoelsRetroLab
Mailing list ➤ https://noelsretrolab.com
#amstrad #lcd #cga
...
https://www.youtube.com/watch?v=ywWMhFoXHXo
Support Noel's Retro Lab on Patreon: https://www.patreon.com/NoelsRetroLab
Let's take a look at CB2: The self-proclaimed "cheapest and easiest to build opensource microcomputer in the world". Does it live up to expectations?
We start by unboxing it, looking at all the components, and the information on the web site. It really is quite a good kit for beginners, and it only takes about half an hour to build. Following along with this video should make assembling it even easier.
Then we look at what exactly is this microcomputer. The heart of is is an ATMega microcontroller which some impressive specs. It's loaded with TinyBASIC and several example programs. We take through its paces while we learn about it and try to find the limits of what we can do with a BASIC program.
Finally we try to connected it to a modern PC, and look at some of the hardware projects available for this system.
Chapters:
00:00 Intro
00:30 Unboxing
01:30 A look at the CB2 web site
03:33 Building the CB2
13:45 CB2 specs
15:56 Testing the CB2
20:54 My thoughts about the CB2
CB2 info and kit ordering: http://cb2.qrp.gr/
Additional music by nene https://opengameart.org/content/theme-song-8-bit
Connect with Noel's Retro Lab:
Discord ➤ https://discord.gg/ETcCh6J
Facebook ➤ https://www.facebook.com/NoelsRetroLab
Twitter ➤ https://twitter.com/NoelsRetroLab
Instagram ➤ https://www.instagram.com/NoelsRetroLab
...
https://www.youtube.com/watch?v=eNvAw-O5Zr0
Support Noel's Retro Lab on Patreon: https://www.patreon.com/NoelsRetroLab
It turns out Commodore #2 had multiple faulty components, so I took longer than expected fixing it. It makes for an interesting investigation starting with unreliable socket on the VIC, a shorted kernal ROM, and a bad PLA. As a bonus I build a quick (and really tall) adapter to fit a 27C128 EPROM on the ROM slot.
Information on building ROM/EPROM adapters for the C64: https://ist.uwaterloo.ca/~schepers/sockets.html
Connect with Noel's Retro Lab:
Facebook ➤ https://www.facebook.com/NoelsRetroLab/
Instagram ➤ https://www.instagram.com/noel_retrolab/
Twitter ➤ https://twitter.com/noel_retrolab
...
https://www.youtube.com/watch?v=QmU9u27u5zk
Support Noel's Retro Lab on Patreon: https://www.patreon.com/NoelsRetroLab
Join me for a behind-the-scenes tour of the Retro Lab. We'll check out the work area along with some of my most-used tools. But also crammed in the same space is my retro computer collection, the area to use those computers, my retro games and books collections, and even my work space. Lots of stuff going on in a very small room!
Connect with Noel's Retro Lab:
Discord ➤ https://discord.gg/ETcCh6J
Facebook ➤ https://www.facebook.com/NoelsRetroLab
Twitter ➤ https://twitter.com/NoelsRetroLab
Instagram ➤ https://www.instagram.com/NoelsRetroLab
...
https://www.youtube.com/watch?v=15WPI4Z1jxw