At one time I had a few Bt848 based PCI TV tuner cards for a PC - Hauppage was a big player but there were others. Some were composite video in, some also had a TV tuner section.
I tried one as a video converter for PAL composite out from some home micro - possibly a Jupiter Ace. It wasn't that great, to be honest and doubtless the RF input is even worse but you don't really expect a great deal from an RF output in terms of video quality. If you can find one (most have been replaced by DVB-T cards : do they also accept analogue TV signals ?) they should be almost free. On Mon, May 20, 2024 at 10:03 AM Tony Duell via cctalk < cctalk@classiccmp.org> wrote: > On Sun, May 19, 2024 at 1:08 PM Will Cooke via cctalk > <cctalk@classiccmp.org> wrote: > > > Does anyone know of a small TV tuner that tunes old analog TV channels > (US NTSC) and outputs composite or VGA or HDMI signals? I've looked around > a bit but haven't found anything. It's relatively easy to build one, but I > would prefer a pre-built solution. And I'm sure others have run into this > same problem. > > Not for NTSC video, but for the UK UHF analogue TV... > > About 30 years ago we had a hobbyist electronics shop chain called > Maplin, who produced and sold their own range of kits, many of them > very good. When NICAM stereo TV sound was introduced in the UK, they > produced a kit to decode the NICAM signal to audio. In fact it was a > total of 3 kits -- the NICAM decoder board, a TV tuner/IF strip to > feed it (if you didn't want to try to tap off the NICAM subcarrier > from your existing TV 's tuner), and the case/connectors/tuner channel > memory/etc.. > > I built the entire system for my parents who had a VCR [1] that could > record stereo sound from line-level inputs but which pre-dated NICAM. > > I then realised that the tuner/IF board on its own, with a multi-turn > pot added for tuning (rather than the remote control/memory control IC > used in the full unit) would be ideal for turning the RF output of UK > home computers into composite video. So I built a second tuner board > for that. Still have it, still use it. > > -tony >
