Brand New Spectrum 48k Part 2 - IN LIVING COLOUR! and with a new keyboard too!
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- เผยแพร่เมื่อ 23 พ.ย. 2024
- Part 2 of our brand new Spectrum build - have we fixed the colour issues? And do we have a new keyboard? This episode has been sponsored by our good friends at PCBWay.com - Check out their website for all your PCB fabrication needs. pcbway.com - PCBs for as little as $5!
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PABB's Issue 3B ReDrawn
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SuperFo's Mechanical Keyboard
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VLA82
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Retroleum RAM and ROM
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Spectrum Issue 3b Bill Of Materials
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Spectrum S-Video Conversion
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The ultimate test will be can your new case and keyboard stand up to the rigours of Daley Thompson's Decathlon. 😋👍
I never let anyone play that on mine back in the 80`s. :)
@@damianbutterworth2434 The Quickshot joystick killer! 😁
Hi, I just wanted to say that a couple of keys on my self-built harlequin 48k speccy haven't been working for a long time. This video gave me the info I needed to diagnose the problem. I.e. testing each of the 40 key traces. Your video allowed me to confirm that its one of the traces on the keyboard membrane that is broken. I was even able to find the break! Thanks!
Glad you got the problem sorted - good job!
Well done! LM1889n are still available from Radwell in the US, UK, and Mexico. New stock is still available for under $8 US each.
Well I guess I’ll get one of those ordered too! Thanks very much! :) :)
I love this stuff. Thank you. I remember my VIC 20 and Commodore 64 with fond memories. I will never do this, but I am grateful for your passion, and more importantly your knowledge, skills and experience.
Great work. Always nice to see another Spectrum born into the world. That keyboard looks great.....I can't wait to see how the case comes into existence.
Nice work. Looking forward to part 3.
Coming soon!
The first you showed those gray flat cables I was thinking - "those look really crappy and cheap, what a shame". Guess what - they were junk. Good job, looking forward to the case!
Looks like a mini BBC Micro.
Or a big white ZX81 with proper keyboard
The headers on both the keyboard and mainboard was a great idea ! Don't you just hate getting cheap trashy cables with a new keyboard ?
YAY, Colour. Nice keyboard.
Glad you like it!
Entertaining and edifying all at once! I enjoy all of your videos so keep 'em coming 🙃🙂.
Thank you! Will do!
Surely LED keys were the order of the day? Imagine the red, yellow, green and blue ‘ribbon’ floating from right to left or maybe a nice fade….:D
Very nice! However, if you're designing a new case, why not go all in and update the keyboard layout? I'd love to see a proper space bar, big enter key, duplicated shift key, and some combo keys like backspace and cursor keys. Might even stick a microcontroller in to map extra keys to the key matrix to avoid the dual layer issues of the Spectrum+ keyboard.
Good idea!
That intro was a proper tease!
This was a great video - looking forward to the next one :)
Thanks - me too ;)
I believe those are called DuPont wires.
Which Cherry switches did you use ? And did you say there were two pins per switch to solder ?
Will you update the key cap texts?
Looking at the datasheet for the LM1889n, it doesn't look like a too complex circuit. I mean, the ULA was reverse engineered, and the LM1889n has full schematics in the datasheet. It should be very doable to create a modern replacement.
As almost everybody replaces the RF output with some kind of video output mod the LM1889n is not needed in it's entirety so probable small PCB with few SMD resistors and transistors will do the trick.