Skip to main content

Music Stand Light


My wife performs at a restaurant once a month. She has been doing this since 1974. Recently she asked me if I could adapt 1 of our traditional stand lights that needs to be plugged into an outlet to a battery operated one. 
I had actually done this last year when I needed a stand light with no access to an outlet.


I had taken the AC parts out of the light and just stuck in 2 LED units that I got from Harbor Freight.


These are units that they give out for free when you purchase other products. They are rated at 144 lumens per light, and since I used two that gave me 288 Lumens. Plenty for full stand coverage.
The problem is the switch. One click and it's a flashlight (at the end), another click turns it off. A third click turns on the broad beam, and finally a 4th click turns it off. When the light is turned off from the broad beam (for reading the music), the next click turns on the flashlight and shines to the side. I covered the flashlight part with electricians tape and that solved the problem, however 3 more times to get it back onto the broad beam gets to be bothersome. Another issue is that they run on three AAA batteries, which don't last very long.
I wanted to make it a little more compact, with a longer burn time per battery pack, and easier to change the batteries.

The light itself is in 3 sections-top cover, battery compartment, and the light w/lens and switch. I removed the top, cut the wires from the batteries, switch, and flashlight. I soldered new leads to the broad beam, cut a hole into the top and epoxied the top and bottom together (getting rid of the battery compartment altogether). This gave it a slimmer profile and lighter weight.

I then soldered the leads together and connected them to a zip cord and finally to a 9volt battery snap on connector. I used a 4 unit AA battery pack with a 9 volt battery connection for the new pack. Since the original system used only 3 batteries, I put a small bolt into one of the units to complete the circuit.


For the mount I cut down a sheet of ABS plastic, heated it and bent it to the angles I took from the original stand light. A 4 1/2" section of a music stand pencil holder was cut and used as the 'clip' for the mount. Since the clip and mount were both ABS plastic, I connected them (melted?) using M.E.K. which is a pretty volatile liquid that is highly flammable, it also produces toxic fumes and can damage the liver when wet. So I used this outside using nitrile gloves.

We now have an LED stand light that is much more effective than most of the ones on the market. It burns well over 2 hours per battery pack which can be switched out in a matter of seconds.






























































Comments

Popular posts from this blog

La Caverna del oro

 One of our first backpacking trips in Colorado was in the Sangre de Christo Mountains. One mountain in particular drew our attention. Marble Mountain was the location of a famous story of a Spanish cave of gold. There are many places on the web that tell this story better than I could, suffice it to say that we wanted to locate it and see the iconic 'Maltese Cross' located at it's entrance.  In 1974 after I got out of the Army we invited some friends to join us on this trip. We parked our car at the trailhead in the Wet Mountain Valley and backpacked up Marble Mountain to 12,000 feet. In one of the culverts we found the entrance to the cave. Maltese Cross at the Caverna del oro It turned out to be a real thing. The large red cross was still visible after 400 yrs. According to legend the Spanish put it there in the 1600's. I did have the courage to crawl into it but only a few feet. After about 10 feet there is a vertical shaft that drops about 750 feet!  The Cross is v...

The Amadinda

  The Amadinda is an African xylophone originally made from slabs of wood or even large sticks, with or without gourds for resonators. There was no reason for this project other than to see if I could make a simple mallet instrument. The box was made from plywood (which also acted as the resonators) and the bars were made from maple.  Since this was to be a true xylophone, the bars were all of equal width. Tuning was done by cutting the bars to different lengths and removing material from the bottom. Using a router I created a sort of 'stepped pyramid' instead of the traditional arc cut found on marimba or xylophone bars.  Cutting the underside is not only for tuning but it focuses the pitch and creates the characteristic overtones of the instrument. Since I wanted to play this with other 'Western' instruments, I chose to use a pentatonic scale of 2 2/5 octaves (C#,D#,F#,G#,A#,C#,D#,F#,G#,A#,C#,D#). Two people sit on either side of the instrument and strike the ends of ...

Camino del Diablo: The graves

This is not meant to be morbid but rather a reminder of the extremes of danger for those who traveled this desert trail.  What I saw were the historic graves, nothing from the pre-Spanish era. The Sonoran Desert has been inhabited for over 10,000 years and archaeologists have limited knowledge of the first people. What little is known consists of trails, trail shrines, petroglyphs/pictographs, mano and metate sites, sleeping circles and geoglyphs (the Blythe geoglyphs being some of the most famous). Some of these markers were names of people who may have died on their desert crossing or maybe just the fact that they were here. There is little information even for the historic markers. They are marked with rock piles in the form of a cross. Many were just rocks piled over the grave. One documented grave is that of Dave O'Neill, a prospector whose body was found along the trail in 1915.  The irony of the circumstances of his death is that his body was found face down in a puddle...