sandall Posted December 7, 2017 Author Share Posted December 7, 2017 Have a look at http://www.dmxprojec...x_analogue.html It is a standard 0-+10v but has a +10v REF which if you use as the 0v and select the invert function, allows 8 channels of 0--10v which should be OK for your Environ. Yes, that appears to be what the info page says, but I'm a bit nervous about what happens when all the earths get connected together. Link to comment Share on other sites More sharing options...
IRW Posted December 7, 2017 Share Posted December 7, 2017 Have a look at http://www.dmxprojec...x_analogue.html It is a standard 0-+10v but has a +10v REF which if you use as the 0v and select the invert function, allows 8 channels of 0--10v which should be OK for your Environ. Yes, that appears to be what the info page says, but I'm a bit nervous about what happens when all the earths get connected together. Why not drop him an email? As I said, he was very helpful when I had questions, and obviously knows his stuff! Link to comment Share on other sites More sharing options...
sandall Posted December 7, 2017 Author Share Posted December 7, 2017 Why not drop him an email? As I said, he was very helpful when I had questions, and obviously knows his stuff! Thanks, I have, & he does indeed know his stuff. I can use a floating PSU to power the module, but this then puts the module "ground" at +10v, so needs a bit of thought about screens & earths, as everything upstream & downstream will be referenced to mains earth. Link to comment Share on other sites More sharing options...
Light Console Posted December 8, 2017 Share Posted December 8, 2017 If they are any use to you at all, I have a pair of Zero88 negative output boards in the storage unit. The rest of the demux was wiped out by a leaky battery, but the boards were mounted well above the unit. Link to comment Share on other sites More sharing options...
sunray Posted December 8, 2017 Share Posted December 8, 2017 Thanks Dave (& Andy)I've just found out that the offending demux is actually one channel of a 1990-vintage 120+ way Arri demux built into in a 4u (or 6u) Donmar box - all the other ways became redundant when the dimmers were replaced by Sensors a few years ago. The problem may of course be something simple, the 2/H Zero-88 is a possible solution, but I'm still hoping someone will know of something a bit smaller.Re replacing the dimmer - because the Environ handles whatever sort of load that's hung from it appears to be totally bomb-proof, the thought of replacing it with something modern has had a firm thumbs-down from all concerned.Has the whole DMUX failed or just the one channel? Link to comment Share on other sites More sharing options...
sandall Posted December 9, 2017 Author Share Posted December 9, 2017 If they are any use to you at all, I have a pair of Zero88 negative output boards in the storage unit. Thanks. PM sent Has the whole DMUX failed or just the one channel? Good question. It's all hard-wired, & there's a show running, so I haven't been able to prod it yet. Link to comment Share on other sites More sharing options...
graemeftv Posted December 10, 2017 Share Posted December 10, 2017 we are now manufacturing 1 to 6 channel DMX to analog circuits we are making version with metal panel work for easy plug and go no tools required for:zero 88 betapack 1 and 2strand act 6 - all versions also basicbasic 0 to +10v0 to -10v0 to +5v Congrats for being a blueroom member, we are offering 1 free of charge for those that email! PLEASE WILL PEOPLE try GOOGLE Search "demux pcb" - select google images whole host of options! Link to comment Share on other sites More sharing options...
IRW Posted December 10, 2017 Share Posted December 10, 2017 we are now manufacturing 1 to 6 channel DMX to analog circuits we are making version with metal panel work for easy plug and go no tools required for:zero 88 betapack 1 and 2strand act 6 - all versions also basicbasic 0 to +10v0 to -10v0 to +5v Congrats for being a blueroom member, we are offering 1 free of charge for those that email! PLEASE WILL PEOPLE try GOOGLE Search "demux pcb" - select google images whole host of options! Come again? Link to comment Share on other sites More sharing options...
Robin D Posted December 11, 2017 Share Posted December 11, 2017 Interesting to a point though. I found the Hungarian site a couple of weeks ago. No pricing, and the listed UK distributor doesn't mention the stuff on their web-site. I have three very old packs I would like to convert to DMX at some point, but unless the prices are very cheap, then there is no point making an enquiry. Link to comment Share on other sites More sharing options...
springgrove Posted December 12, 2017 Share Posted December 12, 2017 Interesting to a point though. I found the Hungarian site a couple of weeks ago. No pricing, and the listed UK distributor doesn't mention the stuff on their web-site. I have three very old packs I would like to convert to DMX at some point, but unless the prices are very cheap, then there is no point making an enquiry.Likewise, I could very well be interested in looking at these if the prices were in the right area. I have 3 or 4 analogue packs which just soldier on, but an internal conversion to DMX would mean less demux and spaghetti! Perhaps someone could post a link to a distributor with some prices. Nigel Link to comment Share on other sites More sharing options...
sandall Posted December 12, 2017 Author Share Posted December 12, 2017 Likewise, I could very well be interested in looking at these if the prices were in the right area. I have 3 or 4 analogue packs which just soldier on, but an internal conversion to DMX would mean less demux and spaghetti! Perhaps someone could post a link to a distributor with some prices. Nigel If they are old Strand units, forget it, but for 0 to +10v outputs Anytronics do a range of kits, or give Graemeftv a call. Either way the demux will probably cost more than the pack is worth (I have the same problem with a couple of old packs). If you want cheap there are plenty of Chinese offerings, but you will need to work out your own wiring & metalwork. Link to comment Share on other sites More sharing options...
sunray Posted December 28, 2017 Share Posted December 28, 2017 A timely entry on Ebay: https://www.ebay.co.uk/itm/STAGE-LIGHTING-12-Channel-DMX-to-Analogue-Card-strand-zero88-pulsar/112695841078?hash=item1a3d321136:g:droAAOSwcUBYF42E Link to comment Share on other sites More sharing options...
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