If somebody is still actively maintaining user applications for CSA803 / 11800 series, please consider adding graded display data download. Behind ugly screen with five eye-watering colours there actu

If somebody is still actively maintaining user applications for CSA803 / 11800 series, please consider adding graded display data download. Behind ugly screen with five eye-watering colours there actu

I have used Joel Koltner's python screen capture tool referenced here http://w140.com/tekwiki/wiki/11802 and modified it slightly to send "DISP? DATA" and then grab and display what comes back. Instru

I have used serial since it is easier to talk to. GPIB can be used just as well. I think their speed is not much different as they are served by slow hardware. Leo

Egge, are you using SD-14 for anything practical or just collecting 11000 paraphernalia? SD-14, SD-20 and SD-32 are the only heads I don't have (and possibly need.) 3GHz is within reach of an average

Well punned! You can buy surplus LeCroy or Agilent one https://www.ebay.com/sch/i.html?_nkw=USB%20test%20fixture The easiest path is to just make one yourself. It's really just SMA or 2.92 to USB-A or

Gudjon, If your goal is to pass EMC test then my personal opinion is you are wasting your time starting with TDR - however fun it is. I would try replicating the problem first before attempting to sol

Gudjon, Thanks for the information. Please share the results when you get to the bottom of it. I am interested in both HS USB design and CSA803 TDR use. From what I understand EMI problems from USB ca

GT320V dot should be near emitter, its colour specifying binning related to transistor beta. Leo

Yes, they do - https://www.tek.com/oscilloscope/dpo70000sx CSA803/1180x are not "normal" scopes - they are sampling scopes and have a lot of limitations. They only work on single volt, repetitive, low

The closest to official datasheet I can find is the product announcement in popular RADIO magazine of the time (1967.) RADIO had probably the best [official] access to the manufacturing data, that was

Chris, You are probably thinking of DL-11? http://w140.com/tekwiki/wiki/DL-11 Another delay line trick I have used is inserting it into the circuit under test before the stage/driver you are working o

Gentlemen, Some time ago I have made a fast risetime pulser with BNC connector for equipment BW testing and a few people here requested that I make an SMA version. I have SMA and 2.92mm connector puls

I would like to correct my mistake - common mode impedance of the full/high-speed USB 2.0 cable is 30 Ohms ±30% Differential impedance is 90 Ω ±15% This is from Table 7-12 in USB spec 2.0 Thanks Leo

This is hardly relevant, but it might be of interest to note that many TVS diodes exhibit negative resistance section. I have made a proof-of concept oscillator that uses a TVS as an oscillator. Proba

Joseph, I got it working at about 1MHz. This is not high by any standard but I was excited to make it oscillate at all. Frequency depends on RC network time constant. Leo

Gerard, If you are playing with retrieving data from CSA803A please consider retrieving graded data. It makes for nice analogue-like images. Here is what I have been playing with on my CSA803A but did

I think most heads were designed by Agoston Agoston. Other than that: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ This product was made possible by the dedicated efforts of a group of in

I have probably concluded it rather than established it. In 1987 Aki was with Tek, in 1992 he was already with Hyperlabs. 11800 came out in late 1980's? Agoston Agoston is listed as an inventor in dua

What are you going to use it for? I have two SD-30 that I use interchangeably that I have bought broken and fixed: one had blown termination resistors, another - faulty trigger pick-off hardline. I do