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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 --

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.

Thank you very much. I will give it a try. Cheers! H

Nice shop !!! The 8902 is the best !! Ing. Patricio A. Greco Taller Aeronáutico de Reparación 1B-349 Organización de Mantenimiento Aeronáutico de la Defensa OMAD-001 Laboratorio de Calibración

I don't have a HV probe currently, but its on my shopping list. I'm going to go with 0v at the moment though, given the state of Q15. I guess I'm just wondering if I should expect other damage to

Jim, Nice lab! I sent a picture of your lab to my daughter in Santa Clarita and she wants to know where you worked in the LA area (we assume). I have a similar lab as I worked for Motorola in

Bill, Q15 is the FET that is in the HV regulator circuit. The gate to the other leads will read open if the ohm meter is connected to back bias the junction. The question is what voltage is

I agree. My typical layout is similar - a radial (90/45/0/-45/-90) distribution of shelving and tall carts that are all within easy reach (3'-6') of any project. Due to the projects as the picture was

Checking things out last night in the LV side of the HV supply, I saw on the edge of Q15 a small delamination. Very tough to see in that tight space but just enough to warrant further investigation.

A neet and compact layout. I had some equipment to shop carts after running out of roo on my bench. That made it easier to take to the Ca lab as well. [email protected]> wrote:

Fine, I'll bite. Only visible is the left side of the active part of my bench - pic from a few weeks ago, with the projects then, as I'm too comfortable in my living room arm chair right now (where

Welcome! Since it seems the thing to share lab pictures: