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ZX81 (BEOCOMP version) using RF to HDMI converter
Posted: Mon Aug 26, 2024 3:25 pm
by Behrens
Hi,
I have the old BEOCOMP (ZX81) that I would like to connect to my modern TV. And of course it doesn't work directly via RF. I am considering this module:
https://www.ebay.com/itm/404137357845
Has anyone had any experience with it?
PS. I don't believe the computer has ever been opened. It is mint condition, and I would prefer to keep it like that. So Composite mod is not my first choice.
Re: ZX81 (BEOCOMP version) using RF to HDMI converter
Posted: Mon Aug 26, 2024 4:53 pm
by 1024MAK
Here's a picture from that eBay listing:

- eBay item
Mark
Re: ZX81 (BEOCOMP version) using RF to HDMI converter
Posted: Mon Aug 26, 2024 4:59 pm
by Lardo Boffin
For ones I don’t want to open I just bought one of these:
https://www.ebay.co.uk/itm/305611975311 ... media=COPY
Re: ZX81 (BEOCOMP version) using RF to HDMI converter
Posted: Mon Aug 26, 2024 8:30 pm
by Exile
I followed this advice and bought a similar 5.5 inch B&W TV from ebay. It works very well with a ZX81 connected over RF
Re: ZX81 (BEOCOMP version) using RF to HDMI converter
Posted: Mon Aug 26, 2024 9:51 pm
by Behrens
Thanks. I'll try the HDMI converter and report back om my findings...
Re: ZX81 (BEOCOMP version) using RF to HDMI converter
Posted: Mon Aug 26, 2024 11:05 pm
by Lardo Boffin
The B&W TV has the added bonus of extra nostalgia when in use.
I’m very jealous of the BEOCOMP by the way. Its not a variant I think I have seen for sale.

Re: ZX81 (BEOCOMP version) using RF to HDMI converter
Posted: Tue Aug 27, 2024 12:19 pm
by Moggy
I can vouch for that little tv which is doubly useful as it has a composite input too, as well as an audio input that can be used with AY.
Re: ZX81 (BEOCOMP version) using RF to HDMI converter
Posted: Thu Aug 29, 2024 12:33 pm
by Behrens
Lardo Boffin wrote: ↑Mon Aug 26, 2024 11:05 pm
The B&W TV has the added bonus of extra nostalgia when in use.
I’m very jealous of the BEOCOMP by the way. Its not a variant I think I have seen for sale.
Well, if it works, I may put it up for sale...
Re: ZX81 (BEOCOMP version) using RF to HDMI converter
Posted: Sun Sep 08, 2024 9:20 pm
by Behrens
Behrens wrote: ↑Mon Aug 26, 2024 3:25 pm
Hi,
I have the old BEOCOMP (ZX81) that I would like to connect to my modern TV. And of course it doesn't work directly via RF. I am considering this module:
https://www.ebay.com/itm/404137357845
Has anyone had any experience with it?
PS. I don't believe the computer has ever been opened. It is mint condition, and I would prefer to keep it like that. So Composite mod is not my first choice.
Hi,
I received the RF tuner, and it does not work well enough. It will tune and find the ZX81, but each scan line is shifted at bit horizontally, making the text unreadable.
Re: ZX81 (BEOCOMP version) using RF to HDMI converter
Posted: Mon Sep 09, 2024 4:08 pm
by Lardo Boffin
Behrens wrote: ↑Thu Aug 29, 2024 12:33 pm
Lardo Boffin wrote: ↑Mon Aug 26, 2024 11:05 pm
The B&W TV has the added bonus of extra nostalgia when in use.
I’m very jealous of the BEOCOMP by the way. Its not a variant I think I have seen for sale.
Well, if it works, I may put it up for sale...
I’d buy it if not working. I suspect it is a normal zeddy inside and therefore fixable.