开云体育

On Fri, Oct 12, 2018 at 12:54 AM, Jim Olson wrote: > > This is for the folks here that are a lot more knowledgeable and experienced > than me with these 4xx series scopes with the testing and

After the code disassembly, seeing that the FW writes 0xAC to the DAC for the U2521 channel 0, the reference voltage on TP2421 is supposed to be 1.24692V but I measure TP2421=-1.2524V, which is

Thanks, downloading and I will evaluate it. Wouldn't have thought of that one. Mine's written in Lazarus Pascal, which is my preferred "goto" for windows style programming. For microprocessors

Q181 on the sweep and z axis board was not seated properly. I have no idea how

Hi, I am a new comer in the forum with little experience, but I have tried fixing various problems my old 465B had. It's channel 1 had jitter, the trace vertically changing position at random, by

You could try: <https://github.com/bsdphk/PyRevEng> -Chuck Harris Harvey White wrote:

What happens in a technical sense is that the circuit is set up with a (much lower) short circuit current limit. When the overcurrent happens, the circuit "folds back" to the point where the

I love the definition of "Fold Back Current Limiting " ...Dennis you are so right, the fuse always survives...LMAO....thanks I needed that... Renée, K6FSB

THe internet is being particularly obtuse tonight, or at least duckduckgo is... Have a name I should look for? Perhaps that'll help. Sorry, and thanks. Harvey

On behalf of all of us thank you H?kan once again. Of course I know what Fold Back Current Limiting is. In its simplest terms it is a circuit that prevents you from burning up a valuable instrument

Thank you, Chuck, I haven't touched the capacitors yet. I've tried all 3 AWGs and got the same result. CAL01 had to run again this time with 7834a, since the steps with the extenal DSO scope were not

To be more concrete I've thrown to IDA the 2465a ROM files. 160-3302-09 & 160-3303-09 are the part number downloaded from here: http://w140.com/tekwiki/wiki/ROM_images The code structure is quite

Hi Victor, Please, reserve me also 2 pieces of blue filter! You can contact me at kmiklos at vnet.hu. Thanks Miklos

Hi Maxim, The normalizer is just a resistor and a trimmer capacitor in parallel, but in series with the center conductors of a male and a female BNC connector. It is built in a little Pomona

If you have ever used a 7805, or LM309, LM319, or LM340, ... you have already used current foldback. -Chuck Harris tinkera123 wrote:

PHK is an open source legend. His disassembler is available for free on github. PHK wrote the NTP routines for openbsd. -Chuck Harris Harvey White wrote: ...

There are many disassemblers that actually emulate the target code to determine the exact way it operates... all in software. CAL01 doesn't have much to do with CAL02. Which attenuator settings give

Okay, understand that now. I have played with/built many linear supplies, but none with much protection circuitry. Thank you, Chuck. Cheers, Ian

<snip> I probably would have liked the ones for the 8085 and the 6502, just because. Every once and while, I need to look at some of those old ones. Right now it's the 6802 that I need to look at.

Harvey White wrote: Indeed, but I find that the LA disassemblers are problematic. It is difficult to tell with a piplined processor whether the memory reads you are processing are reading data, or