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I finally decided to go down the rabbit hole of the 3585a. Mine was giving me a trouble where it would boot up and give me a calibration error saying “error 02” and it USED to give waveform

Ask the manufacturers of virtually all PC's. They find it is cheaper and easier to use the DVD player as a dust filter... If you pressurize the case, you have to study the air flow and install

Yep.? I don't understand why you would even consider sucking dirty air through the vents and gaps.? ? ? ? ? Jim Ford?Sent from my T-Mobile 4G LTE Device

You and me both. Everywhere I turn it's another detail that I didn't even realise existed, let alone know how to figure out. I don't even know a lot of the terminology being used. I have too many

Hi Tom, Regarding the HP 8517a/b S-Parameter Test Set, it features a positive pressure cooling system. The fan directs airflow into the unit. You can found the original fan photo in the

Just checked my 'files' and I found U1 - U13 files, both .BIN and .MOT, for the 8970A. Not sure where I got them as they date to 2007. Not my 'usual' label as I save from a unit I have. If they

Reg, I'm looking forward to the results of your work! And I'm very glad you got your 3458A... I want one for myself too. One day! Its linearity is mythical. I hope you're able to fix it in no

Hi Robin, Phase is a very strong function of the frequency (for a good reason). I re-measured the phase this time checking the frequency of the signal generator with a counter, it was few kHz off.

Yes, but... ‘On the other hand, if you suck on the case, you can open up holes in the panels adjacent anything that needs cooling, and it will get fresh cool air right on it. ‘ Then what about

It depends on how the engineer was feeling on the day he designed the cooling... Basically, if you suck through a filter and blow into the cabinet, you will need to spend a bit of effort making

Yes, your numbers look about right to me. I modelled your version using two pairs of 100R 1206 SMD resistors and assumed about 0.5nH at the launcher and some fringing capacitance there as well. This

That is 1/8 W resistors.

Very good. I did the quick and ugly and so my performance is the other extreme. 3.5 mm panel mount connectors arranged as suggested earlier, 2 parallel 100 ohm carbon film, 1.8w axial R's and

I've built a lot of large electrical equipment enclosures for the chemical processing industry... From a common sense perspective I always thought the fan & filter should draw air into the cabinet

On Tue, 14 Nov 2023, jmr via groups.io wrote: If you look at the RLC D-1814 photo I posted yesterday, you'll see that it is not all that simple. The construction is VERY rigid -- it is made from

That direct connection method using three resistors and three connectors soldered together would be a quick way to do it, and it should be possible using 1206 SMD resistors and SMA/3.5mm connectors. I

Ah, thanks for that!? I shall try messing with the cable length then until it takes off ...? 1.9nS is arounf 400mm of cable at vf=0.7 ... the one shown in the manuel is much shorter, so maybe it is

I have an HP 16500C logic analyser. Actual unit tests fine in the diagnostics but unfortunately the two 16557D cards in it have suffered the green death and fail diagnostics. Does anyone have any of

While all of the liquid suggestions may help, you? may want to try one or two mechanical hacks.? Beg borrow or steal an "easy out" ( a commercial version of the previously mentioned cement nail)

Hi Matt, I don't know if I have a picture of what is inside the copper box but I built an attenuator with SMD resistors. In one leg of the pi-network I also added a 50-ohm matched tap to take out the