How to make calibration signal lead for oscilloscope? - Page 2 - UK Vintage Radio Repair and Restoration Discussion Forum

Radio Wrangler · 9th Aug 2020, 7:21 am

Actually, the suggestion of a set-top box you also got is better still. I hadn't thought of that!

What you're looking for is something which makes a composite video signal to play with.

A set top box will be conveniently small and a lot safer than most tellies were. Be careful about switch mode power supplies which might have exposed mains inside of them, but you should find video signals available via either phono or SCART connectors.

David

Luxman1050 · 12th Aug 2020, 7:02 pm

Cheers guys plenty of info for me to work from.
All best Chris

9th Aug 2020, 7:21 am	#21
Radio Wrangler Moderator Join Date: Mar 2012 Location: Fife, Scotland, UK. Posts: 22,867	Re: How to make calibration signal lead for oscilloscope? Actually, the suggestion of a set-top box you also got is better still. I hadn't thought of that! What you're looking for is something which makes a composite video signal to play with. A set top box will be conveniently small and a lot safer than most tellies were. Be careful about switch mode power supplies which might have exposed mains inside of them, but you should find video signals available via either phono or SCART connectors. David __________________ Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done

12th Aug 2020, 7:02 pm	#22
Luxman1050 Octode Join Date: Apr 2019 Location: Margate, Kent, UK. Posts: 1,728	Re: How to make calibration signal lead for oscilloscope? Cheers guys plenty of info for me to work from. All best Chris