chrislea_10outof10 Posted August 16, 2018 Share Posted August 16, 2018 Hey all! Does anyone have, or can push me in the right direction to obtain some schematics for a Comms stobe/flasher? I want to build one. I know there are some plans around, but I cant think where to start to find one. Thanks in advance! Link to comment Share on other sites More sharing options...
timsabre Posted August 16, 2018 Share Posted August 16, 2018 Here ya gohttp://www.dmx512.co...cpro/tpcall.htmThat's slightly overkill as it switches 12V AC from a transformer using a triac, you could put a relay in place of the MOC3020 or just switch a big LED using the transistor Q1. also see this previous topic http://www.blue-room.org.uk/index.php?showtopic=18840 Link to comment Share on other sites More sharing options...
chrislea_10outof10 Posted August 16, 2018 Author Share Posted August 16, 2018 I knew someone here would have it. Thanks so much! Link to comment Share on other sites More sharing options...
DrV Posted August 16, 2018 Share Posted August 16, 2018 I built some rather (over) sophisticated, bespoke units for the Barbican which work with both Tecpro (d.c.) and RTS/Telex signalling (ultrasonic tone superimposed on the audio). In the form the Barbican wanted (very rugged and smart) they turned out to be too expensive to market as commercial products but if anyone is looking for some they are a bit less expensive than the standard offering (CIA1000) which is not readily available any more.Dave Link to comment Share on other sites More sharing options...
david.elsbury Posted August 17, 2018 Share Posted August 17, 2018 I’ve built Brian’s circuit linked in the topic above. Nice and easy on a bit of veroboard. Link to comment Share on other sites More sharing options...
sunray Posted August 18, 2018 Share Posted August 18, 2018 I had a need to switch comms into show relay and as I have some spare bluecom boards decided to use the flasher circuit to operate a relay as a stop gap system.I populated only: the three pole XLR's, L1, C10, D2, C11,R8,C12 for the power supply and: R38, R39, C26,TR3, TR4, R32 and replaced the LED with a relay and protection diode.I intend to progress it to a better non relay system but it quickly got us out of a difficult cable run.The relay can of course switch a mains lamp or be replaced with an opto triac. Link to comment Share on other sites More sharing options...
boatman Posted August 18, 2018 Share Posted August 18, 2018 I had a need to switch comms into show relay and as I have some spare bluecom boards decided to use the flasher circuit to operate a relay as a stop gap system.I populated only: the three pole XLR's, L1, C10, D2, C11,R8,C12 for the power supply and: R38, R39, C26,TR3, TR4, R32 and replaced the LED with a relay and protection diode.I intend to progress it to a better non relay system but it quickly got us out of a difficult cable run.The relay can of course switch a mains lamp or be replaced with an opto triac. Good to see yet another application for a Bluecom board! Link to comment Share on other sites More sharing options...
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