DevilishDesign
@devilishdesign.bsky.social
Collector & repairer of vintage computers and the odd typewriter.
Was @Devilish_Design over on the bird site.
Warning! This profile might contain images of exploded RIFA capacitors!
Was @Devilish_Design over on the bird site.
Warning! This profile might contain images of exploded RIFA capacitors!
Thanks to @tnmoc.bsky.social for putting on a most excellent jumble sale! I've picked up a couple of projects that will keep me busy for a while 😀
July 19, 2025 at 4:00 PM
Thanks to @tnmoc.bsky.social for putting on a most excellent jumble sale! I've picked up a couple of projects that will keep me busy for a while 😀
If you see this, quote with a time travel movie that's not BACK TO THE FUTURE.
July 15, 2025 at 10:25 AM
If you see this, quote with a time travel movie that's not BACK TO THE FUTURE.
Woohoo! Microsoft BASIC 2 loaded from paper tape! 😀
July 5, 2025 at 3:26 PM
Woohoo! Microsoft BASIC 2 loaded from paper tape! 😀
Copy of the tape made. Let's try and load it 😟
July 5, 2025 at 3:12 PM
Copy of the tape made. Let's try and load it 😟
Going through some old paper tapes and found this. It's version 2 of Microsoft BASIC from 1975. Version 1 was never released to the public which makes this Microsoft's first commercial product and it's not been archived anywhere! Time to break out my tape reader... 🙂
July 5, 2025 at 2:00 PM
Going through some old paper tapes and found this. It's version 2 of Microsoft BASIC from 1975. Version 1 was never released to the public which makes this Microsoft's first commercial product and it's not been archived anywhere! Time to break out my tape reader... 🙂
This morning, I have been mostly testing Apple II disk drives. They all work! 😯
June 28, 2025 at 10:44 AM
This morning, I have been mostly testing Apple II disk drives. They all work! 😯
I managed to grab some more photos of it.
June 1, 2025 at 10:18 PM
I managed to grab some more photos of it.
All set up and ready for Retrofest tomorrow! 🙂
May 30, 2025 at 3:13 PM
All set up and ready for Retrofest tomorrow! 🙂
Getting things ready to take to Retrofest. Less than a week to go! Yikes!!
May 25, 2025 at 1:59 PM
Getting things ready to take to Retrofest. Less than a week to go! Yikes!!
Yep, I think you're right. Here's a photo of a complete terminal...
May 10, 2025 at 9:27 AM
Yep, I think you're right. Here's a photo of a complete terminal...
Spending the afternoon getting things ready for RetroFest later this month. Things are finally starting to work! 😀. #RetroFest www.retrofest.uk
May 5, 2025 at 2:29 PM
Spending the afternoon getting things ready for RetroFest later this month. Things are finally starting to work! 😀. #RetroFest www.retrofest.uk
Looks like my copy saw a little more action. It's a great little book.
March 30, 2025 at 8:58 PM
Looks like my copy saw a little more action. It's a great little book.
My first KIM with a faulty RRIOT CHIP 🙁. Replaced both 6530 RRIOTs with an adaptor board containing two 6532 RIOTs and an EPROM. Looks a bit messy but at least it now works.
March 20, 2025 at 7:23 PM
My first KIM with a faulty RRIOT CHIP 🙁. Replaced both 6530 RRIOTs with an adaptor board containing two 6532 RIOTs and an EPROM. Looks a bit messy but at least it now works.
Green KIM, Blue KIM, White KIM, Genuine KIM 😀
March 2, 2025 at 2:47 PM
Green KIM, Blue KIM, White KIM, Genuine KIM 😀
Indeed! The original tube in this VT125 had some nasty screen burn so the only choice was to fit a nice slow phosphor one 😀
March 1, 2025 at 8:12 AM
Indeed! The original tube in this VT125 had some nasty screen burn so the only choice was to fit a nice slow phosphor one 😀
It appears to be green 🙂
January 31, 2025 at 4:42 PM
It appears to be green 🙂
Check out this lovely bit of Commodore engineering. Voltage regulator with a heatsink that snakes over to the cartridge port shielding. How do we attach the heatsink? Rivet to the regulator and use thermal compound & wishful thinking on the other end!
January 14, 2025 at 5:17 PM
Check out this lovely bit of Commodore engineering. Voltage regulator with a heatsink that snakes over to the cartridge port shielding. How do we attach the heatsink? Rivet to the regulator and use thermal compound & wishful thinking on the other end!
Motherboard is a nice early revision too. Most chips seem to be dated late 1982.
January 2, 2025 at 6:28 PM
Motherboard is a nice early revision too. Most chips seem to be dated late 1982.
I'm guessing it might be an early one 🤔
January 2, 2025 at 6:20 PM
I'm guessing it might be an early one 🤔
First day back at work - boo! 🙁
First ebay parcel of 2025 - yay! 😊
Thanks Postie!
First ebay parcel of 2025 - yay! 😊
Thanks Postie!
January 2, 2025 at 6:13 PM
First day back at work - boo! 🙁
First ebay parcel of 2025 - yay! 😊
Thanks Postie!
First ebay parcel of 2025 - yay! 😊
Thanks Postie!
Happy New Year! This year, I'm aiming to do some exercise every single day. I've just completed a 30 minute walk so off to a good start! ⭐
January 1, 2025 at 1:59 PM
Happy New Year! This year, I'm aiming to do some exercise every single day. I've just completed a 30 minute walk so off to a good start! ⭐
Here's the CPU at work in an IMP-16P computer.
Thanks for following along with my series of CPU posts. Hope you have enjoyed them. Tune in next month as I start my collection of carbon film resistors 😉
Happy New Year!
Thanks for following along with my series of CPU posts. Hope you have enjoyed them. Tune in next month as I start my collection of carbon film resistors 😉
Happy New Year!
December 31, 2024 at 5:22 PM
Here's the CPU at work in an IMP-16P computer.
Thanks for following along with my series of CPU posts. Hope you have enjoyed them. Tune in next month as I start my collection of carbon film resistors 😉
Happy New Year!
Thanks for following along with my series of CPU posts. Hope you have enjoyed them. Tune in next month as I start my collection of carbon film resistors 😉
Happy New Year!
The last CPU is a weird one. It's the National Semiconductor IMP-16, the first multi-chip 16bit microprocessor from 1972. It consists of 4x RALU chips (Register + ALU) and a CROM (Control + ROM). It can be expanded with an additional CROM that extends the instruction set. The CPU runs at 715Khz ...
December 31, 2024 at 5:22 PM
The last CPU is a weird one. It's the National Semiconductor IMP-16, the first multi-chip 16bit microprocessor from 1972. It consists of 4x RALU chips (Register + ALU) and a CROM (Control + ROM). It can be expanded with an additional CROM that extends the instruction set. The CPU runs at 715Khz ...
Do have a few others though, R12000, R10000, R5000, R4000, R4400, R4600 and R3000
December 30, 2024 at 10:34 PM
Do have a few others though, R12000, R10000, R5000, R4000, R4400, R4600 and R3000