I've recently picked up an Ayr Teletext receiver, I've not included a photo as it i not much to look at. It looks in good condition and powered up OK. I can get an E-E picture by tuning in the No 1 position, so the tuner/modulator and IF (SAWF) seem to be OK, I don't have a remote so it looks like it powers up on position 1, E-E. Two questions, does anyone know if modern universal remotes support the SAA5010 IR commands and also does anyone have a circuit diagram ? The circuit is not essential as I can probably guess since it is the Mullard SAA500n teletext decoder chipset and a TEA1002 PAL encoder. Though I'd like a remote to see it work, I've got plenty of sources of teletext and most broadcasters in the UK (even Channel 4 when it works....) still support 888 subtitles on their SD services.
I've one of these, a GEC/AYR badged version (mine in the photo below) stored away, it's a slimmer version (later) to the one shown in the advert below. It does not have its original remote, either. I've not had a chance to test it yet, but I'm lead to believe, it responds to the TX9/10 remotes with the SAA5000 chip in, I guess yours should too.
I've a soft spot for these old vintage teletext set-top boxes, I've a Radofin TAD 110 (wired remote), Labgear 7026 (wired remote). The LabGear model was featured on Pebble Mill, you can see the video on YouTube, finally the GEC/AYR (infra remote).
My unit is identical to the one in the photo. I think I've still got a few Philex TX100 remote controls here which would also work with the TX10 teletext models, I'll try one of those if I find it. Here is a picture of the inside, business end, the RF mod and PSU are out of frame on the right.
Any remote that uses the SAA5000 should work with it, so Philips G11 and Ferguson TX10 come to mind here.