Recent content by JD

  1. JD

    Is 40amps enough?

    Most likely it is enough if you amps are split equally. Keep in mind, "program" output is usually 5x the RMS draw as music and voice are quite dynamic. At 120 volts the 32 amps (cont duty from 2x20) will give you 3840 continuous watts. If you are running standard program ratio, (x5) that would...
  2. JD

    Scaffold for followspots

    Woodstock? Who can forget this footage, posted by a familiar name!
  3. JD

    Fire at Pinewood Studios

    Fairly large set fire indoors at Pinewood, video on link. Not the type of thing you want to have happen. Pinewood Studio Fire
  4. JD

    Super basic questions about amps, standard hookups, monitors, etc

    Regarding running speakers (amp output) back through the snake: Yes, there are snakes built with heavier gauge lines for this purpose, but I still wouldn't do it. In some applications, the output lines will induce enough signal (trough magnetic induction) that you can end up with ultrasonic...
  5. JD

    "Classic" Rock and Roll colors

    Have to agree with Lextech above, Used a lot of Lee, basically primary RGB and Rosco 22 as my orange. The great offset was the Lee 126 mauve! It just kicked against any other combo you would have lit. I'll add one more, white! Especially on ACLs, although I always threw a 1/2 blue CTB on them to...
  6. JD

    Alec Baldwin involved in accidental shooting death on set of "Rust"

    Very strange indeed. Although a blank can be lethal if fired at very close range, to hear that a second person was also injured is something I have never heard of. The only thing that comes to mind is if the prop gun fragmented when fired. Very sad.
  7. JD

    A Troubleshooting Tale

    The interesting thing is that you can unplug everything and still have it damaged by a nearby strike. I repaired a number of new VCRs that were still in the box when lightning struck outside a store once. The EMP from the strike outside the store blew the head preamps. As each one was sold, it...
  8. JD

    A Troubleshooting Tale

    That's called the "Cintuas" clause of repair, as in "Since Ya" did that repair, we have this new problem.
  9. JD

    ETC Sensor Rack Dimmer Bypass

    Another concern has to do with the fault current interrupt rating of the circuit breaker. When you bypass the SSR/Choke, the potential fault current is higher. The breakers in the CC20 are approved for this higher fault current.
  10. JD

    Design Upgrade from Altman (or similar) r40 border lights

    Of course there is one other option- Keep the existing boarders in place and operational and then add newer fixtures as the budget become available. You will probably find you need far fewer fixtures in the long run, especially if you are just doing video. The boarders only use power when they...
  11. JD

    Automated Fixtures Chauvet Finish turned Sticky!

    This definitely appears to be the "rubberized" coating. The same plastic that is not coated is fine. Same issue on the guard rails on the controllers. Kind of reminds me of the funky decay that happened to the foam lining in old anvil road cases. I just need to find the right compound to take...
  12. JD

    Automated Fixtures Chauvet Finish turned Sticky!

    Store equipment for a while and you find new issues! In this case, I am having an issue with the black mat finish on my Chauvet fixtures. This may not be brand specific, but it has me scratching my head. It appears whatever was used to give the black plastic parts a mat finish has degenerated...
  13. JD

    Shoebox Dimmers

    Check the older threads. The triac used in these is a 15 amp triac, there is a drop-in replacement 25 amp triac. Where as the 15 amp ones sometimes pop on inrush, the 25's give you enough headroom to make the unit very reliable. Best par is the triacs are less than $2
  14. JD

    30 foot lightweight truss system with L16 crank lifts

    This item has now been sold.
  15. JD

    Vintage Lighting Actual "Nernst Lamp" running (120 years old)

    Must admit I had never heard of this light source, but it was apparently an early competitor to the standard incandescent lamp around 1900. "Photonicinduction" apparently has a couple and refirbed one and then put it through it's paces! Pretty strange and operates without a vacuum, but requires...
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