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You've got the right of it. The Windows program just asks for a block of data and then displays it. The real hard part is figuring out what name Windows gave to the COM port. I generally try to avoid

I got a TEK 2465A for free a few weeks ago from a neighbor. The only problem it had was a severely pulsing display. It went through boot up ok and i assumed ripple from the power supply was the issue.

I just obtained a Tektronix 1240 Logic Analyzer from the Tektronix "RAMS" Store. I Was Reading the Tek Wiki on the Easter Egg Nothing Special but Here it is. https://youtu.be/x4248B81d2c Live Stream

Thank you. The papers published in Applied Optics appear to be behind a firewall. But I see that the first paper is co-authored by Jay Pasaschoff whose textbooks on astronomy we hsed in college. DaveD

The following photos have been updated in the SC503 and SC504 Volts/Div and Time/Div Knob Shaft ( /g/TekScopes/album?id=302038 ) photo album of the [email protected] group. *

I don't immediately see a File folder for the 7J20 in the Files section. Does such exist ? Are copies of the manuals, etc. in there ?

Came across some references & research papers online for the use of the Tek 7J20 RSS Spectrometer; .... might be of some interest: rick Tek 7J20

Thanks for the app. I'm just guessing... I don't have the hardware. But, it looks to me... and I might be wrong... that the curvebug app just polls the ARM for a data block, after sending a command

[email protected]> wrote: Cool, that's good. TBH I'm no expert at gauging ripple - maybe someone with actual old-school experience can take a look at the photos and pipe in here? At this stage you

Really impressive work! :-) I'm in the UK so I'll aim to find similar facility here, though I've only found fabricators who serve industry so far and I think they'll expect orders by the tonne, not a

Well..... So I took the case off and checked the voltages on J119 and they are all correct according to the service manual, but I'm unclear on how exactly you go about checking the peak to peak ripple

Will do. Wouldn't be a huge surprise to find bad filter caps, especially if they've never been changed.

[email protected]> wrote: IIRC the attenuators have a soldered connection to the preamps, or I would suggest switching them to see whether the problem follows an attenuator. All that being said, you

Oh no, NVM that I see that it's one of the hybrids, not a regular IC. I may try reseating that and see what happens. If you remove that and power the scope up with it out of circuit will that cause

That was the same thing I was thinking, now I just have to figure out what.... I wonder if I can take a small loop of wire and put it near the ch 2 preamp components and narrow it down to exactly what

Barry, How do you want me to get you payment? Mark ?? ----------------------------------. ? /? Don't take life so seriously, __/ ?/?????? it's not permanent.????? /

Hey Jason, From the photos you posted, I can see that: 1. The scope is triggering on the 850Mhz signal, meaning the trigger hybrid sees it. 2. The signal is *probably* internally generated, as

I have put the Windows source code out on GitHub under the MIT license for public use. It should be fairly easy for some skilled in the art of Linux to get it running on their OS of choice. It's just

Okay I'll try this. I couldn't upload the vid showing me switching through everything. Idk if any of these pics will help anyone see anything though. /g/TekScopes/album?id=302469

Barry- those look great!!!! Renée