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| Test Equipment Anonymous (TEA) group therapy thread |
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| mnementh:
--- Quote from: BU508A on July 02, 2022, 12:08:53 pm --- --- Quote from: bd139 on July 01, 2022, 01:02:31 pm ---Fuck forgot to bid on the Bourns ones :palm: :palm: :palm: Ah well - congratulations anyway :-+ --- End quote --- I, on the other hand, succeeded with my bid. :palm: :-DD --- End quote --- Nice pocket sword! I've carried a Recruit or a Spartan (or the equivalent Wenger) in my pocket since grand-dad gave me one of his when I was 10. :-+ mnem Accept no stubsitutes. |
| BU508A:
--- Quote from: Cerebus on July 02, 2022, 02:42:04 pm --- --- Quote from: BU508A on July 02, 2022, 12:08:53 pm --- --- Quote from: bd139 on July 01, 2022, 01:02:31 pm ---Fuck forgot to bid on the Bourns ones :palm: :palm: :palm: Ah well - congratulations anyway :-+ --- End quote --- I, on the other hand, succeeded with my bid. :palm: :-DD --- End quote --- I personally quite like the way most Germans sound when they are talking in English, except when they sound as smug as a cat who's just discovered a hidden cache of tinned souris à la sauce creme avec catnip. ;) --- End quote --- Aunt BBC about purring cats: https://www.bbc.com/future/article/20180724-the-complicated-truth-about-a-cats-purr :D *purr* :D *purr* :D *purr* :D *purr* :D *purr* :D *purr* :D *purr* :D |
| mnementh:
You do realize that their purr is how they eat your soul, right...? :-DD mnem *toddles off to do something... else.* |
| bd139:
Cat purring annoys me like ticking clocks and loud fans do :popcorn: |
| mnementh:
--- Quote from: factory on July 02, 2022, 02:05:50 pm --- --- Quote from: mnementh on July 02, 2022, 03:05:23 am ---Uggghhh... Okies... anybody got any tech ref on the monitors used in these HP scopes? I understand the difference between the two implementations is the 54621D and family use 32-grayscale palette, while the 54600A and family use a 2-grayscale palette. 54645A/54600A use HP 2090-0316/DataRay CDM-7SF191, the 54621D uses HP 2090-0384/DataRay CDM-7SX191. My searches in the available HP SMs and on the internet turned up bupkis. Before I go guessing based on poking around with my scope, does anybody here have actual pinouts and or schematic for these monitors? Tomorrow I figured I'd start looking at the CLIP package from the 54645A and see what I can find there. Maybe lookit the video chip on each and see if I can find some datasheets. :-// mnem :=\ --- End quote --- I'm would be surprized if they aren't interchangeable, they look to be standard bought-in monochrome monitors to me, the different greyscaling would be something done in the video processing, on the mainboard and the output just a video signal. Certainly I saw the video signal on the diagrams for the 54645A, that was posted a few weeks back. I think the other connections are power (+15V?), an external pot for brightness, can't remember what else there is. The chip on the Hitachi CDM-7SF191 board in my 54615B is a uPC1379C, this is a sync signal processor IC intended for small B/W & color TVs and does the vertical & horizontal stuff, that is done by more discrete parts on the earlier scope displays (the only one that a diagram seems available for).David --- End quote --- Yeeah, I'm not sure. IIRC, these are actually a TTL digital input monitor, so not that simple. I need to do some research. :-+ mnem :-/O |
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