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Hi Jim, Here is my lab when it is not too messy. I have another section containing about ten instruments near my work desk. Small space, but enough to have fun. De :

Funny how these HPIB nuts are sometimes the only rusty thing on an otherwise pristine piece of HP gear

Great to see others' labs! Here are my two labs -- the first (my main lab) is in my garage here in Silicon Valley.? Besides what you see, there's a whole bunch of "gee, maybe I could use that in a

Several days ago I saw a post "somewhere" saying that the site had run out of disk space for manuals and that he would be working on it. I know disk space and a web link are not necessarily directly

Thanks for that feedback Dave. At this point in my struggle with this machine, nothing about it surprises me. It could have been hit by lightning for all i know. :-P One bit of good news, the modules

Hi, I would like to transfer waveforms from my HP 54542A to a PC. In the past I have made do with floppy disks, but I find them to be unreliable and a bit of a faff. As a result I would like to use

yes... lot's of stuff kills you. but... the biggest killer of all is time. yet, we all use it.

I think that once enough equipment accumulates that it hides other gear it breeds and, thus, new test equipment.? Sounds likely to me, anyway, but I'm having a tough time selling that explanation to

I'm just saying sandpaper scratches, and so 'cuts' glass. smaller particles, are not harder, than larger ones... they just leave smaller scratches... so cut slower.

About half million tons of the stuff, used around the U.S. annually, for something. They used HF to etch quartz crystals during WWII AFAIK is was something like 5% solution of HF. Women did it, using

It's been a long time since I've seen it, but I *think* that there's a bench underneath all of that "stuff" in the other room... -- Member of the toughest, meanest, deadliest, most unrelenting -- and

It does penetrate the skin, which is a barrier for entry into the body, beyond that organ. Not sure how it 'dissolves' bone... if you mean it brings bone into solution, with body water... as HF forms

calcium gluconate gel is widely available, and used for lots of other things Should always be on hand if handling HF, especially 1%,5% or 10% solutions. Hospital emergency, and cluing in the doctors,

I can't see what could destroy Q15, except perhaps C18 shorting. Dave Wise ________________________________ Sent: Wednesday, September 18, 2024 8:15 AM To: [email protected]

when a solution of HF penetrates the skin, from a splash for example... it dissociates into fluorine ions. those react with both calcium and magnesium ions, to significantly reduce their

HF penetrates the skin, and dissociates, in body water, to form fluoride ions. Fluoride ions bond with both calcium and magnesium ions...reducing their availability in the body, for import muscle, and

I'm sure your hardness scale figures are correct, Roy. But the particle size at 1500 grit is so tiny you'd need a microscope to spot them. So hardness is only part of it in this context.

Dimethyl mercury is one of the worst compounds IME. Even if you were protective gloves, it can't save you from a single drop of the stuff. This unfortunately lady became the poster girl for

Stuff people used to have around the house, could dissolve glass.

Aluminum Oxide...hardness of about 9 on the Mohs hardness scale...glass, hardness of around 5-6. Silicon carbide... even harder.