开云体育

Hello Manfred, I am not home now so I can't be more presice about the location of the transistor.? It is on the bottom side of the motherboard close to the front panel and is connected to TP602.? If

When I did it to my 5370A, I put in the "B" firmware, and it became a "B". It seemed significantly faster. The biggest issue I found is shutdowns. It is a bad idea to shutdown BBB linux systems by

Yes, thanks!? I found it.? It works in kicad, and OshPark likes it.? So I just need to review it and order the boards.? I did have a question though.? Does it allow for a faster throughput than

Hello Radu. Check the video cables as well. I've had more than my fair share of "leaky" VGA cables in the past, where in one case, the "so called" 75 Ohm coax cables in the common jacket, were not

Hello Tom, did you have mir informations about the transistoe which could be blown? Don't find anything in the web. Manfred

It's all there under the "pcb" subdir? https://github.com/jks-prv/5370_proc

I am a RF Engineer working on designing and building RF and microwave circuits for over 24 years , I always clean the flux even if its “no clean” blah blah because I have seen too much stuff with

Yeah, I doubt that to be the case here. I graduated Navy Micro Miniature Repair School in the 90’s, and a PLCC is, “no thing but a chicken wing” compared to what I have dealt with in the past. I

Aaaaaah now I see ? I learned this the hard way back when I hacked Options on the 8753 and 8720 units , you have to be VERY CAUTIOUS when you desolder and resolder the EEPROM , the flux from the

Make sure the analyzer supports the 438A , I remember it supports the 436/437 but not sure about the 438 Sent: Sunday, March 6, 2022 11:43 AM To: [email protected];

What resistors did you use and how did you mount them ? I fixed a few bridges back when 8753 still sold for good money , I used beam lead resistors with 0.5% tolerance I glued them in with conductive

Yes, over a month ago.

Did you desolder the EEPROM ? Sent: Sunday, March 6, 2022 5:52 PM To: [email protected]; [email protected] Subject: Re: [HP-Agilent-Keysight-equipment]

Lothar, The couplers did sustain significant damage.? I had to replace the thin-film bridge resistors with surface mount resistors.? That no doubt added to the port match problems. --John Gord

I have the EEPROM Binaries copied and stored for this VNA. I am leaning towards the fact this is not a corruption of EEPROM Cal Constants. Based on my recent findings, the switch is looking more like

EEPROMs sometimes get corrupted which is why agilent provided a backup disk ? The problem with the EEPROM is that if it goes bad you cant just order one from mouser or digi key and pop it in , the

Things to think of with lighting: 1) there's a lot of 12 volt lighting made for RVs, as long as it's LED and doesn't have an inverter. 2) A battery backed up supply with a charger makes a good

I spent a couple hours running a few more tests, and conducting some experiments. At the conclusion, I think the evidence is in fact pointing right back at the Switch. Here is where I have left it,

Gary, Very interesting, likely the right approach is a combination of tackles: - DC linear supply for LED bench lighting. The current overhead lights I have are some of the worst offenders. Funny

Hi Gary, Agree with you on all points.? LEDs are the way to go, with a linear supply. Turn off devices that radiate energy, or use a test chamber (made for this purpose). -Chris