UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Practical Electronics November 1988

Radio Wrangler · 6th Jul 2016, 9:23 am

I remember that one. It is very, very, low performance the Y amplifier uses an opamp, but I can't remember which one, the timebase a 555, and there's only a couple of hundred volts on the CRT.

If you want a scope to use, to do anything useful, I'd suggest you don't bother with this one. If you want to build a scope for the educational aspects of it, then it goes part way but it doesn't show you the sorts of circuits and techniques in mainstream scopes.

Sorry to pour cold water, but I wouldn't want to see anyone put in the effort of finding the awkward bits (like the CRT) and then be disappointed.

David

6th Jul 2016, 9:23 am	#5
Radio Wrangler Moderator Join Date: Mar 2012 Location: Fife, Scotland, UK. Posts: 22,902	Re: Practical Electronics November 1988 - Oscilloscope I remember that one. It is very, very, low performance the Y amplifier uses an opamp, but I can't remember which one, the timebase a 555, and there's only a couple of hundred volts on the CRT. If you want a scope to use, to do anything useful, I'd suggest you don't bother with this one. If you want to build a scope for the educational aspects of it, then it goes part way but it doesn't show you the sorts of circuits and techniques in mainstream scopes. Sorry to pour cold water, but I wouldn't want to see anyone put in the effort of finding the awkward bits (like the CRT) and then be disappointed. David __________________ Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done