Recent content by dramatech

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    Mystery Lighting Issues

    If the transceiver chip is blown, it is an easy fix and only cost a buck or two. It would be ashamed to throw away a board if it is such an easy fix. The first thing to do is to build or get a DMX tester that is just some LEDs and resistors. You can find them on the net for a few bucks, or there...
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    Multiplex and DMX at the same time

    The Lightronics TL5024 is a great little board that does both Microplex and DMX if equipped with both connectors. It can have the DMX added with just a 75176 IC and a 5 pin connector. It also has a "GO" button capability. It is however limited to 24 channels and only 256 addresses. Lightronics...
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    Mystery incandescent lamp?

    Ready was the symbol for Utah Power and Light back in the 1950s, I therefore assume that he was pretty universal.
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    Need help identifying vintage dimmers

    The multicolored units were truly Ariel Davis. Some of the all yellow controlled units were also Ariel Davis before Electro Control purchased them. I first worked with one of those older units when I was 12 years old and then later many of the yellow handled units in college. I am now 75, so...
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    Control/Dimming Inexpensive DMX controller for classroom

    mine gets used on my work bench for testing DMX controlled items that I am repairing or building. The rest of the time it makes and excellent paperweight.
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    Phase rotation?

    I traveled with an ice skating show for a few years, and the rotation direction of the 30 horse power compressors that we used was critical as compressors don't work very well when turning backwards. All of the cooling fans and liquid pumps also were in need of correct rotation. That is why...
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    DMX merger with preset recall

    You can do away with the console part and use a 10 volt supply and a 10K variable resistor. mpja.co, has some very inexpensive power supplies. questions if you want to go this way, [email protected] I second that northlight products are great and James Sharp will help give great solutions...
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    Vintage Lighting Identifying an Old Light Board

    [ I did some repairs to the board in my kids high school a number of years ago, and it was almost an exact duplicate of the one shown. It is a HUB. The dimmer rack with it was non-toroidal choke coils with dual SCRs. the control is a negative 24 volts. After a year of working with the school...
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    Looking for old Electro Controls info

    the dimmer shown was developed by Ariel Davis in the early 50s. I worked with that type back in 1952 and all through high school and college up until 1966. I know it continued beyond that after Electro Control became the new brand. Not long after Electro Control took over, they started making...
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    Reel To Reel Tape Use In The Theater Question

    I started with open reel recorders in 1959. we used almost exclusively Ampex 600 series. I still have an Ampes 602-2 sitting in my living room as a decoration. We used it twice as a prop in two runnings of the Buddy Holly Story. I love it when younger techs ask what it is, and didn't even know...
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    Lighting iPad App

    I am interested in setting up a system for wireless remote focus. I would like to use an ipad or other tablet with the remote focus that you mentioned first in your post. I want to have it go to a wireless router, and the output of the router to a converter that outputs DMX. Then the DMX to a...
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    Controlling house lights without a unison

    our system is some what the same as footers. We have a four channel wall mount dimmer from Lightronics. It has four memories per dimmer so that there are 16 memories that can be activated by switch closure. We have four rows of house lights. If you enter from a hallway near the stage, there is...
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    Power Supply Advice for ETC Express 24/48

    You can contact me at [email protected] and we can discuss it.
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    Power Supply Advice for ETC Express 24/48

    I just did a search on mpja.com, and they have a computer type supply with the voltage and current you want, except that it has a 4 pin miniDIN connector. You can cut that connector off and put on a standard DIN. The supply requires a standard IEC power cable. The supply is 15955PS $6.95. The...
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