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Post ApbAjawzFAndERZ7uy by [email protected] |
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More posts by [email protected] |
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Post #ApaiDDIgqBzTtqUJto by [email protected] |
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yeah that is not a number you want to see on a closed switch. that’s not a go… |
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Post #ApajzqlDX3J88ZaS8G by [email protected] |
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@moira open or closed, it's a bad number! |
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Post #Apajzr2EVmv0zLY2ee by [email protected] |
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@moz Certainly as a rule, and that rule would apply here! |
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Post #Apak2EgNYtNOuQSg8e by [email protected] |
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@moira don't let the magic smoke out. Its impossible to put back.Edit: thou… |
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Post #Apak2EsmolIjWuGaTg by [email protected] |
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@MHowell It's a purely mechanical set of coax switches, I'm pretty sure… |
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Post #ApakFMOSCihcaYKrD6 by [email protected] |
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@moira [concerned squinting intensifies] |
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Post #ApakKV63H0Wj1rBAJc by [email protected] |
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@rmd1023 It's an old RF switcher, I want to be able to throw the attic aeri… |
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Post #ApakdD6APjs2i89dXk by [email protected] |
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@moira not great, not te…Wait…Why the fuck is that piece of wire sticking o… |
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Post #ApakdDM7SQdBVbcNPM by [email protected] |
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@jpm That's a isolated ground access, used by my anti-static mat. The plug … |
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Post #ApanEosT7CccVGoBJg by [email protected] |
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@moira Coax? Aren't they supposed to be 50 ohm +/- intrinsic impedance or a… |
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Post #ApanEp7iCWobGXwM4m by [email protected] |
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@MHowell That's AC impedance, not DC resistance, and on cable lengths rathe… |
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Post #Apao3AQlFtUppPr8ZU by [email protected] |
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@moira I figured it might have been an earthing point, it just looks horrific t… |
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Post #Apao3AfeMXPEZap1mK by [email protected] |
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@jpm Well then, I'll trust you know to treat it with respect should you eve… |
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Post #AparnT7yN9Th00q0QK by [email protected] |
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@moira Heh, that was like my main DMM for a looooong time. I loved the build in… |
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Post #AparnTL5aNyBegyTrs by [email protected] |
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@ChuckMcManis I’ve had it as long as I can remember. No idea how I got it. |
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Post #ApasAzmp76TMwvADWC by [email protected] |
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okay this just got super weirdall four inputs on the left appear to be hardwire… |
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Post #Apat2W3XrlLWNcVQEi by [email protected] |
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NOPE THEY'RE 100% CONNECTED ON THE SIGNAL LINES 100% OF THE TIMEWHAT THE FU… |
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Post #ApatiRuDgglFfc8gfg by [email protected] |
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"antenna," "aux 1," "aux 2," and "cable"… |
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Post #ApauIXXwC2iZaavUeW by [email protected] |
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@moira Got specs? What is the intended function of this board/box besides coax … |
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Post #ApauIXjdUY4kAsOpt2 by [email protected] |
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@MHowell that's its only function.five inputs, two outputs, purely mechanic… |
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Post #ApaujCsf8UTnJYKswy by [email protected] |
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AND TO SHIELD GROUNDWHYwhere I can get to it, the conformal coating itself does… |
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Post #Apay9yCG8d15SDxIMi by [email protected] |
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@moira spitballing: Is it possible the switches are two pole, where one pole sw… |
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Post #Apay9ySv8gLOHtkbKq by [email protected] |
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@MHowell still workin on that chiefthis is one of two#electronics #bullshit #Fu… |
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Post #Apaz84mamS0HFtbvIO by [email protected] |
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@MHowell It's literally just all connected to the ground plane and signal l… |
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Post #ApazsMtvkVB2ll7JBo by [email protected] |
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@MHowell @MHowell I was thinking for a while that maybe the switches lift sign… |
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Post #Apb0ukBeFBjRWR6JOa by [email protected] |
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oh ho ho look who’s been holding out on me#rf #electronics |
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Post #Apb2cRy7RLBLiPB3EO by [email protected] |
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aaaaaaand everything is 0 ohms from everything else. literally everything. even… |
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Post #Apb36W28tJxN0fOaI4 by [email protected] |
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definitely not just in herebut the thing isthis is all DC multimetre shit and t… |
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Post #Apb8tQ2YSk2GNkj7Hk by [email protected] |
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whelp it's intentionali don't understand it but it's intentionala t… |
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Post #Apb8tpESnbPqVvUTom by [email protected] |
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@moira I see your alt-text references |
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Post #Apb8tpQA66m16Cxp3I by [email protected] |
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@KindlyWizard and that's why i make 'em ^_^ |
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Post #Apb9bORdktqKAxQdqi by [email protected] |
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i honestly can't find a function for these switches. only the VCR input - w… |
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Post #Apb9s23uEA3PgCGG8G by [email protected] |
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@moira I don't even understand all of what you're saying but I know eno… |
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Post #Apb9s2InKnxoQNE9L6 by [email protected] |
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@iris honestly i have no ideait's justwhu...? |
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Post #ApbA15Y6dEY16Jhnai by [email protected] |
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@iris I mean I can REALLY see why the signal takes such a hit, you do this you&… |
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Post #ApbA8I0ugeb1moc6Pg by [email protected] |
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@moira i think the tiny inductors are really transformers, passing the signal b… |
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Post #ApbA8IKlUqTYmNtxM8 by [email protected] |
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@idiot can't be, all connections are literally 0 ohmthere's no (zero) f… |
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Post #ApbAUadg7SlTvFNZho by [email protected] |
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@idiot there are two coils (SORTA) but they're literally soldered directly … |
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Post #ApbAcQ55G1rhUgvoG0 by [email protected] |
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@moira https://www.wired.com/story/some-cheap-wired-headphones-are-actually-usi… |
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Post #ApbAcQH8XDVS64ZR2m by [email protected] |
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@iris yeaaaaaaaaaah |
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Post #ApbAjawzFAndERZ7uy by [email protected] |
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@idiot oh wait also after the inductor they have a pair of picofarad caps bridg… |
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Post #ApbB6wCcOY5Lnx0Xg0 by [email protected] |
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i mean by the time we get to these switches we have what as far as I can tell i… |
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Post #ApbBYnLAwA5EQbIGHY by [email protected] |
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So I guess now I'm gonna decide if I can actually wire up this thing in a b… |
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Post #ApbD7IWjapK6x1iTRo by [email protected] |
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@moira something like this bandpass filter. |
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Post #ApbD7IiQtKgHXJBogK by [email protected] |
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@idiot Okay, yeah, that looks something like a more complicated version of what… |
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Post #ApbDU7e6DOyzrd2psW by [email protected] |
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@idiot presumably this doesn't just put "hi have some signal lol"… |
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Post #ApbDW9ALXC3B9q5qzo by [email protected] |
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@moira I’m not an ee, and I haven’t really digested the details of what you… |
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Post #ApbDW9Lgr17lj1Oug4 by [email protected] |
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@Jvmguy it's an unpowered unit thopurely mechanical |
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Post #ApbKbnFoc8eScGI6sa by [email protected] |
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@moira What do you want to use this switch for? Its original purpose? Or are yo… |
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Post #ApbKbnTdmji7J8l9Qe by [email protected] |
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@raek Yeah, I was thinking about hooking up a the signal generator I refurbishe… |
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Post #ApbLEoV1ux9Jlx0uw4 by [email protected] |
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@raek (The EICO, before and after. Also, it didn't work before. It does aft… |
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Post #ApbLPYCcqi9YPjWciG by [email protected] |
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@moira Yeah, with the sig gen and scope you can already do most of the basic me… |
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Post #ApbLPYTdpRlRGVUDEe by [email protected] |
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@raek At least it's AC, right? It's not like I'll break it. Er, any… |
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Post #ApbLVf1kO9e9JkLmsK by [email protected] |
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@moira Nice! I like the simplicity of that "interface"! |
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Post #ApbLVfD5hyijsveqYa by [email protected] |
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@raek i even made a replacement back label. turns out that particular era look … |
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Post #ApcL1K6nnDMMuWD0KG by [email protected] |
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@moira Is it possible that the inputs are all wired up as a single combiner, an… |
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Post #ApcL1KLKvAzBdb0byq by [email protected] |
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@ChuckMcManis I looked for that - at least on DC - and saw no sign of it, becau… |
