I'm looking for a schematic for a Dish Network satellite receiver model DISH311. The audio is too low and I'm wondering if there was any adjustment that could be made to increase it.
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I want to play my MP3 player through my car stereo, but it does not have an auxilliary input to plug in at. It does, however, have a separate CD changer. Can I simply wire the CD changer and an audio jack for the MP3 player to a selector switch, and use them both on the CD input? Seems too easy. What am I missing or is there a better way?
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Back in the 1970s, the now deceased publication of Popular Electronics printed a construction article using readily available components to build a device that used battery power to generate a high voltage spike to electrify a piece of wire. An electric fence, if you will. I built it (at the time) so my boss could train his dog not to urinate on his flowers. I was told it worked great. I built it again, years later, to test the capabilities of another circuit to suppress voltage surges. The schematic for the circuit is long gone and so is the publication. We called it the “Dog Zapper” when we initially built the circuit. I’m not sure that was the name used in the construction article. If someone out there can give me some information on the circuit (or a similiar one), or the month and year of the publication that contained the construction article, it would be greatly appreciated.
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I have a pair of 7.1 surround sound headphones. I would like to buy or make a unit to switch all eight speaker outputs to all eight headphone inputs, but I am worried about overloading/blowing up the headphones. I assume some kind of attenuator will be required. Any Ideas?
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My Brother Lowrance GPS fish finder model #LCX 112C has been discontinued by Lowrance.
The dual SD/MMC reader interface (PCB #0170920-001 rev.2, mfg by Yang-An Electronics) has been corroded by salt water.
I’m looking for a replacement PCB or a way to connect a miniature 10-pin ribbon cable to USB connector as a replacement to read information from the SD Card.
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I am using two perimeter mics via a small mixer to monitor outside buildings. I now want to connect this to my old Nokia 1200 to do off-site monitoring. Any suggestions?
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What cheap or free Basic compilers are being used for programming PICs?
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Could someone come up with a simple schematic for a blinking LED (clear but blinks red)? The item would use an NTE5405 SCR, a high intensity (MSD) LED, and an LSR (light sensitive resistor), all driven by a nine volt battery. The purpose would be for the blinking light to remain out during the day but would come on at night and blink about once every seven seconds. It would then go out during the daytime.
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I am looking for an AC/DC transformer with a variable voltage input of 47 VAC to 277 VAC, with a secondary output of 12 VDC.
Does anyone know where I can find one or have one made?
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I'd like a circuit to power LEDs or an electro-luminescent display to be used as a "Recording" light in a small studio. Ideally, the sign would come on fully for several seconds at first, and then flash on and off slowly, ramping the voltage to the display or LEDs up and down, so as to create a soft blinking display.
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