BBC Model B repair. Blank Boot screen, and it's not the RAM.

Рет қаралды 570

3 ай бұрын

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The BBC Model B is a familiar face to any middle-aged Brit. Appearing in schools in the early 1980s, the BBC was seemingly in every classroom. Even in the early 90s, my school library had several BBC's still tucked into a corner. I hated the BBC. It was the school computer, the software was always lame, and worst of all, educational. The ZX Spectrum was my home computer and that had cool games. So the BBC was unloved.
Fast forward 40 years and I'm looking to see if I still hate the old BBC. I picked up this BBC for under 100 GBP, untested. Does it work? I don't know, but more importantly, can I learn to love the BBC? Let's find out.
The SD2BBC adaptor can be found here
www.tfw8b.com/product/sd2bbc-...
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Пікірлер: 12

@sandmehlig 2 ай бұрын

Very nice! Thank you. 😃

@bazza5699 2 ай бұрын

there's something so nostalgic about the sound of a BBC keyboard.

@techdept 2 ай бұрын

There really is. Just the beep from the speaker and I’m back in junior school.

@bazza5699 2 ай бұрын

@@techdept I don't know about your computer class, but in 1986 at my school the computer room, was filled with many different computers, not just the bbc, but the spectrum, c64, amstrad.. then within maybe 2 years they'd been replaced with pcs running dos, this was pre windows 3.11.. i have such nice memories of that computer room..

@Olinca 2 ай бұрын

"shoddily put together in the best way possible" great autobiography title

@techdept 2 ай бұрын

I’m saving that for mine then. :)

@ghosthuntergr 2 ай бұрын

I have a similar issue showing only a cursor on screen but with a bbc+ model

@KeritechElectronics 2 ай бұрын

"Don't turn it on, take it apart!" - that's what Dave said... I'd at least use a dim bulb tester. If shit happens, it won't hit the fan. Watching you discombobulate and recombobulate the oldie... It fills me with determination. I love it that you don't hide the mistakes. No one is perfect and we really should get rid of the illusion that if you're not perfect, you shouldn't do stuff and show it. We're real people. We make mistakes and learn from them. Rome wasn't built in a day. Oh, Micro Men was nice! A bit too skewed on the BBC side, but I still liked it. And just look at Sophie Wilson! I had to try eating with DMM probes as chopsticks, here's the result: kzfaq.infoZeXaZAbKi3g

@techdept 2 ай бұрын

Thanks gorgeous. I screw up all the time, but I definitely learn from it. Micro men was great, and having Sofie in there made me very happy.

@djwilduk 2 ай бұрын

Nice fix with the RAM enable issue there Jess... Calling the DC power cabling "shoddy" is a bit harsh. The designers have taken care and expense to route relatively high current capacity leads to multiple places on the board to ensure reliability (near the RAM for example).

@techdept 2 ай бұрын

Yeah. I was a bit rude. The wiring did take me by surprise. I guess I’m more use to the speccy than the Beeb. But now I know the reason, so it’s a win for me. :)