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| How to trigger a combined signal |
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| tooki:
--- Quote from: RAPo on October 16, 2022, 02:31:49 pm --- --- Quote from: tooki on October 16, 2022, 02:26:15 pm ---Can you link to the original magazine in question instead of a poorly-cropped low-resolution screenshot in which nothing can possibly be read? I can make out that it’s Popular Electronics, so it’s almost certainly available for us on worldradioarchive. --- End quote --- Here it is: https://worldradiohistory.com/Archive-Poptronics/90s/92/PE-1991-07.pdf --- End quote --- 404 not found. You sure about that URL? |
| RAPo:
I'm sure about: https://worldradiohistory.com/Archive-Poptronics/90s/91/PE-1991-07.pdf (downloaded at my side). |
| RAPo:
--- Quote from: tooki on October 16, 2022, 02:57:09 pm ---It’s on page 63 of the catalog here: https://www.yumpu.com/en/document/view/5663030/electrical-machines-elwe-lehrsysteme . (Use the login from http://bugmenot.com/view/yumpu.com if you want to download the PDF.) The manufacturer went out of business and was bought up years ago by a company called LD Didactic, which is still around. They may be able to supply the manual. (They have a downloadable archive of manuals, but requires registration to download.) --- End quote --- ow wow, many thanks. My apparatus has the signal out channels at the back, the one you linked to has them on the right front side. |
| tautech:
--- Quote from: StillTrying on October 16, 2022, 02:45:13 pm ---"I'm trying to trigger on 1 channel (the yellow one)," It should be possible to get some sort of temporary stable trigger on that yellow because Signal 3 always shoots up to Signal 1 giving a long +ve edge. Perhaps move the trigger level away from the middle Signal 2 level, trigger on AC coupled, or add "Noise Rejection" to the trigger, can't think of much else. :) --- End quote --- 100%, this is the only edge to target but it must be done with Holdoff to prevent retriggering until the next same edge so a Holdoff of ~550us should work just fine. Other smaller edges can be targeted in exactly the same way albeit with a more defined trigger level. |
| tooki:
--- Quote from: RAPo on October 16, 2022, 03:03:32 pm ---I'm sure about: https://worldradiohistory.com/Archive-Poptronics/90s/91/PE-1991-07.pdf (downloaded at my side). --- End quote --- Ah! The first time around, you wrote “…/92/…” instead of “…/91/…” --- Quote from: RAPo on October 16, 2022, 03:05:51 pm --- --- Quote from: tooki on October 16, 2022, 02:57:09 pm ---It’s on page 63 of the catalog here: https://www.yumpu.com/en/document/view/5663030/electrical-machines-elwe-lehrsysteme . (Use the login from http://bugmenot.com/view/yumpu.com if you want to download the PDF.) The manufacturer went out of business and was bought up years ago by a company called LD Didactic, which is still around. They may be able to supply the manual. (They have a downloadable archive of manuals, but requires registration to download.) --- End quote --- ow wow, many thanks. My apparatus has the signal out channels at the back, the one you linked to has them on the right front side. --- End quote --- Still, it should work the same. Maybe they can get you the manual. |
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