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If carrying it yourself, it should be just fine if not banged around or dropped. Keep it upright in its normal operating position - never haul with the face down. Ed

Any advice on what to check before transporting a 500-series scope? I know that there's some kind of clamp or brace for the CRT on these old scopes that can deteriorate with time. I'm planning to

Say you have two or more supplies stacked to get the sum of output voltages. Fine and good. Now short the total output and think about what will happen if you have no reverse clamp protection on the

So by protection diode, you're not talking about over-voltage, you're talking about accidentally driving another source. So a forward biased diode that would prevent current into the power supply.

I have several stock boxes full of these new bagged parts from HP. needless to say, the packaging is most of the bulk. I can remove that to save on shipping. are these any use to anyone for projects

Here's a specific example of what I'm thinking of doing with such a scenario: I'd like to be able to run 465 boards on the bench to test them before reassembling on the chassis. I have a variety of

Definitely.? Most power supplies take a very dim (as in permanently off) view of reverse voltage applied to their terminals.? Most also don't like to be tied to another power supply in parallel

Could you elaborate Ed? Seems such diodes might need to be robust. Any particular type that's appropriate? I take it these need to have a reverse breakdown?voltage above the supply? But are there

Be sure to add an external reverse protection diode across each output, in case there isn't one built in. Ed

I just want to check myself. I don't want to overlook something and break my toys: Is it safe, and a typical thing to do, to daisy chain power supplies to get a higher voltage than any one supply can

Hi Phil, I definitely learned a lesson when she was recuperating. Now I do most of the things you do and I also walk the dogs 4 or 5 times each day starting at 4AM! in the morning. If I'm lucky they

Hi Dennis, Glad to hear that she is on the mend. After 42 years of marriage, I can say this... My wife and I have taken to "thanking" each other for the things that the other does for us; like

This was my uncles scope. He passed away last year. I'm going through his stuff before the property gets sold. I thought perhaps someone here on the east coast would want this one, otherwise it get

You can try to find a HV probe like the ones used back when TV sets had CRTs (like I did). The CRT beam current shouldn't be that high so that it presents much of a load. I now recall that I did have

This time I'm sure I don't need this probe. I have a P6023 probe lying around for a long time with nothing that uses it. It is a low capacitance probe (12pF, 8Meg Ohms, 10X attenuation, 1000V Max). It

Thanks for compiling the document Dennis. I know that it takes a lot of effort to do such projects.

Hi david, The picture never appears in the link you provided. However, the complete manual for the P6204 can be downloaded from TekWiki: https://w140.com/tekwiki/wiki/Main_Page The manual has a

Auctions have been around since at least 500 B.C. since they promise to fetch as high a price as possible for the seller while at the same time offering to the buyer the prospect of buying items at

Thank you!! larry

Thank you Dennis! By chance do you have the part number for the TeKProbe BNC with the 2 locking rings? Shown here without the 2 locking rings. https://images.app.goo.gl/MUVd68ojYxeACkMB7