Vintage Computers

[JerryMungo]

From Gemini AI...

Connecting a classic Sinclair ZX Spectrum computer to a modern HDMI display requires a specialized retro-computer video converter or edge-connector interface rather than a standard software AI video upscaler. [1, 2]

Dedicated Hardware Solutions for ZX Spectrum to HDMI

• ZX-HD Interface: Developed by ByteDelight, the ZX-HD Manual is a plug-and-play expansion unit that attaches directly to the ZX Spectrum edge connector. It monitors video RAM writes in real time using a small internal processor to output a crisp, pixel-perfect digital HDMI signal. [1, 2, 3, 4]
• TK-Pie / ZX-Pie: A community-driven open-source hardware project that uses a CPLD chip combined with a Raspberry Pi Zero to latch onto video signals and output clean high-definition HDMI natively. [1, 2, 3]
• RGB-to-HDMI / SCART Converters: Models with specific 15kHz RGB line-compatibility (such as dedicated SCART-to-HDMI scalers or specialized GBS-Control setups) can handle the analog RGB output found on later models like the ZX Spectrum +2A or +3. Note: Generic cheap AV-to-HDMI composite boxes usually fail or produce heavy lag and artifacting with a raw 15kHz retro computer signal. [1, 2, 3, 4]
• Internal Component/FPGA Upgrades: Enthusiasts looking to modify internal boards can use projects like the ZX Spectrum Component Video Upgrade to output cleaner analog YPbPr signals, which are then easily paired with high-end external upscalers like an OSSC or RetroTINK

Yes, I'm looking for one of those gadgets.

 

[JerryMungo]

Go to your local Cash Converters and get a CRT for you dedicated retro corner.

I'm trying to go HD and don't want an extra screen.
I have it working fine on my LG C2 via RF.

 

[dabean]

 

[AnimateX]

My new toy
View attachment 1945144

I know you last said you looking for a RF to HDMI solution but curious to know, does everything still work so far on this +2? Our 48k+ started having issues with the membrane after 13 years (I blame Decathlon) and the 48k+ keyboard kinda sucked but this looks like it has a decent keyboard.

 

[JerryMungo]

I know you last said you looking for a RF to HDMI solution but curious to know, does everything still work so far on this +2? Our 48k+ started having issues with the membrane after 13 years (I blame Decathlon) and the 48k+ keyboard kinda sucked but this looks like it has a decent keyboard.

The membrane on this keyboard is way way better than the older Speccy membranes. I'm going to guess it was one of Amstrad's contributions. You can still get the old 48k membranes from the UK if you're prepared to pay shipping / postage - Aramex global shopper perhaps. Those old membranes were the pits lol.

So far this +2 is working well, yes.