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It would have been interesting to measure the lead levels in consumer electronics techs 50 years ago (and still today) who lit cigarettes with soldering irons. Adding lead to that menagere of poisons

The R2 value of 60R is the equivalent Rp (parallel resistance) of the 10073C at about 500MHz. If you measured the 10073C with an impedance analyser down at low frequencies (eg in the kHz region) Rp

Hi, Where is R2 derived from? The 10073C input resistance is 2M2 not 60R. You have included the capacitance so can't be that unless you are double accounting? What is the delta at 350MHz? Robert.

Of course, what this means in reality, is that you can expect to achieve slightly confusing results if you used this Tee setup to test the 10073C against a near perfect Zo probe for frequency response

If you aren't happy/familiar with a HB simulation, then see below for a SPICE simulation. The result is the same although the SPICE simulation will show how it settles in steady state. So it may be

I don't know if this helps, but look at the simulation below. This assumes a dielectric constant of 2 for the BNC Tee and a distance of 46mm between the probes. The simulation is a harmonic balance

My had both, but I concluded that the big one (HP-67 style) was not used, so I changed only that on board and it works.

JMR said: "If the 3.5GHz 'known good probe' probe is a passive Zo probe, it might look like 500R in parallel with 1pF up at UHF. By contrast, a 10073C will typically look like about 60R in parallel

I'm not absolutely sure of the details, but as I recall, the 8568A (and 8566A) to "B" conversions changed it from an off-board 3-cell NiCd HP35 calculator-style pack, to a single 3V Li-ion cell

Never mind, Procedure starts on page 1-13 of the Installation & verification Manual - 8568B-IVM.pdf Regards Lou VK3ALB [email protected]> wrote:

Hi, I have a HP8568B reporting the battery is low. I have some 8568B manuals from Artek but I can't find anything in them that looks like battery replacement instructions. I know I have to take a

https://hakkousa.com/products/fume-extraction.html https://www.amazon.com/Fume-Extractor-Soldering/s?k=Fume+Extractor+Soldering https://paceworldwide.com/product-catalog/fume-extraction

Hi Radu, You don't say what your scare was, but if your doctor deduced that the lead levels in your body are high, it likely didn't come soldering circuit boards. If you have lead in your blood, look

John, I think I'd pay you that, add money for gas, house (+ dinner and breakfast) you for a couple of nights just for the company and conversation. Radu. [email protected]> wrote:

Hey, for $2k, I might drive over from ABQ and make that hole in the wall...with all new ducting and fans... I lived in Santa Barbara for 6 yrs and miss the mild climate, foggy nights, and luxurious

I appreciate that - and was just kind of determining it's an option, though pretty pricey new - but not used, please. The seller may have used it to make Cesium Christmas tree ornaments for all I

Metcal made (makes?) a HEPA solution that can be placed on/near/under the bench. I got a used one off the auction site for a fairly reasonable price by waiting for the right deal to come along.

Ok, there's enough information on the problem now. Apparently, soldering 20 feet away from a cooking area, on the same level of a dwelling, even with doors in the way, with a common airspace, single

Thank you all. Plenty of paranoia here, but backed with some reality - I have young kids and the kitchen is a literal 20 feet from the bench. Being in CA, I have zero alternative options to

Yes. This is quite obscure. I don't know what kind of bench soldering he's? doing, or how often, but there's a range of options out there. I have a very cheap fan and filter, it went on sale for $5,