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Completely agree. I ran the SMPS with just the fan for a whole afternoon before I was willing to go further. With the 40W series bulb removed :), the SMPS starts up correctly with just the SMPS and

realistically, the 475 is just a better scope in every way, and significantly newer and better desgined. and you have to love the 200+MHz bandwidth, and the ability to stop it down for lower frequency

Hi jerry, I'm in Australia, shipping costs here would be much more than the scope. It looks like a nice package, I'm sure it will sell. I always enjoy your posts to the group, usually learn something

Thanks Don, Yes it is 200MHZ. I will see if I can fix the listing. Where are you? Jerry Massengale

Yes by logging into yahoogroups.com

You mean it really isn't flat??? Don Black.

Hi to everyone, I've been reading the posts and researching the old analog Tek scopes. It's very exciting to see the interest shown even after all these years. My 453 has arrived. I haven't been able

I guess this is the graph, found by Google search <http://www.ko4bb.com/Manuals/Fluke/Bandwidth_Measurement_80K40.pdf>. It's valuable to know what's really happening. Looking at the SA graph and

Hey, don't get in the way of research! ?:) Either they achieve the results they seek, or they don't. ?It should never be our place to discourage pure research, nor to blindly challenge their

Hi Alex, could you explain more on your modifications to the RCA probe for use with a DMM please. I guess you must have reduced the resistance because it originally was designed for use with VTVM with

Chemicals can resonate no worse than Power/Ground plane on a multilayer board, as claimed by famous Howard Johnson of 'Black Magic' fame. A bit off subject, but close enough to cold fusion. Miroslav

Hi Jerry, Nice looking scope, too far away for me. However, you've listed it as a 200 MHz scope in the title but only 100 MHz in the description. I guess I could look it up but which is correct? I

No, nothing as impossible or profitable as cold fusion.? We're developing an electro-chemical compressor for refrigeration use, and there is water in our cells by design. "Bound water and ice have

This post describes a procedure that I used to remove and clean the Ch1 and Ch 2 input assemblies for a Tek 475A scope.My scope was showing intermittent and erratic traces even after switching ranges

Thank you for all the responses :) I'll try to find a good deal on a Flule 80K-40 to add to the arsenal of rarely used tools :)

On one hand, the 454 has several Nuvistor tubes (the 454A replaced them with JFETs) which can be difficult to find replacements for and are not getting any younger. In the worse cast, JFETs can be

You don't have to apologize for anything. Everybody here is happy to help when possible.

Looking at getting either a 454 or a 475 and would appreciate any opinions as to reliability and ease of maintenance and repair for these two scopes.? The 454 is working fine and the 475 needs some

Sounds more like cold fusion (or worse)! How could chemicals resonate?