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Hi, Dave: The vertical signal connections are where the coax is used, plus two more for the "flipped version (580). Before the 580, they were not coax. For the rest of the connections, you can check

Hi Michel, The only part that I know of in that scope that can be damaged by water is the power transformer and then usually only if you submerge it in water or use water with a lot of metal ions in

Hi Michael, The black capacitors I am talking about are located in the -150, +100, +225, +350, and +500 power supplies and not in the high voltage area. You should be able to remove and replace these

Well, I have just taken a cover off my 012-038 500-series flexible extender, and the cable is just 16-core plain wire. No coaxes in there at all. BUT it is a good job I took the cover off, since there

I've searched the archives a few times, but I haven't found a really good description of the 500 series scope extension cable. Based on what I did find (and looking at my MFs and PIs), the 93 ohm coax

I have a fully functional SC504--except for the channel 2 attenuator. The SC504 attenuator has a cam that causes individual contacts to be pushed into contact with plugin boards containing the

its like a meter , reference level= full scale. scopes are volts per division so are chart and xy recorders division= 1 inch or 1cm on most chart or xy recorders

I can read/program the 74S288's without any problem. Please feel free to contact me if you wish regarding such programming. -=-=-=-=-=-=-=-=-=-=-=- Bruce Lane, Owner & Head Hardware Heavy, Blue

I'm about 99% certain that my Advin U84 can program it. I'll have to check. It programs virtually everything from the '90s back. Do you have a source for blank parts? -Chuck Harris <j.> wrote:

SAs can be confusing to a newbie, definitely. Whatever your reference level is, that's what's at the top of the screen. So if you want to feed it a 0 dBm signal and observe it at the top line of the

0 dB attenuation is probably not appropriate. Each spectrum analyzer has an optimum mixer level, usually around -30 dBm. When you set a reference level above that point, the analyzer will want to - or

Chris, There is a long and a short answer to your question. The short answer turns out to be the better one: get a copy of the service manual and go through the verification and calibration procedure.

Hi Stan, It looks like the Tektronix engineer you’re talking about is a huge winner of the “He who dies with the most “toys” wins!!!” contest…God bless him!! Although the other part of the

Hi Ashton, You might want to watch my eBay sales for the next several weeks. I am helping a widow dispose of a HUGE estate left by a very smart Tektronix microwave engineer. Right now, we have 90

I just want to double-check some basic assumptions regarding the operation of a 492, or any spectrum analyzer, for that matter. Suppose I want to do a quick check of the unit's level calibration, at

"Stan and Patricia Griffiths" <w7ni@...> wrote: I don't blame you. It can get huge. OTOH, I'd love to bring up a 4081 -- someplace other than here. -ls-

Well, yes, around here (Portland, OR) at least. I see them in estate sales now and then and have been offered a few for free . . . but with 1500 instruments already, I just don't have the space to

The 74'288 was an OTP PAL array. It was also sometimes listed as a 32x4 prom (functionally, the same thing as a PAL) It had fusible links (as already mentioned), non-reprogrammable. Most often ordered

Chuck Harris wrote: Yes, you can blame me for both the architecture and the instruction set... I did quite a bit of research before and during the design, but as originally built, the computer did not