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Old Toshiba Satellite receiver TRX-1520-What DIY projects to use for?

I have an old Toshiba Satellite receiver TRX-1520. I plugged it in, it works, but I don't really have any use for it. What DIY electronics projects can I use it for if I take it apart? It has all kinds of inputs/outputs, actuator, remote receiver and stuff...Here's a diagram of what the box looks like:http://tacpservice.toshiba.com/CONSUMERPRODUCTSUPPORT/Manuals/Satellite/trx1520.pdfThank you.

Question by cyprusrom  


how do i build a solar panel regulator?

I needed a schematic diagram of a solar panel regulator

Question    |  last reply


How to build an osscilator that gives me 440Hz and connect it to an Speaker?

We want to build an oscillator (440hz) that uses an 9v Battery block and would like to hear this Signal with an Loudspeaker. What do i need to know about the loudspeaker?

Question by silverhalogenide    |  last reply


Polarity of tantalum capacitors

Howdy all, Recently got back into basic electronics and have started building kits. Been building a kit that uses tantalum capacitors and it notes that polarity orientation is very important. The question I have is: is there some un-published indicator of how polarity is indicated on these tantalum caps? I've been over these things with a microscope, even bought new ones, but other than the values & manufacturer, I can find no obvious sign of polarity. Leads are the same length and not marked. What am I missing? Thanks in advance for any help. Dave

Topic by gutbucket    |  last reply


Does a current activated switch as small as an OR Gate exist?

I have a type of connector that has two wires. two on one side and two on the other. One of the "connectors/wires" is red with ~5V and the other is white with a varying current/voltage of ~10mV to 3.3V which goes in either direction. This connector is meant to be plugged in, in either direction. So at any given time, only one side is receiving current. The bottom of the connector if thought of as a box comes into contact with a grounding panel, which shorts out the connector, and it does not function. What I need is to have a sort of switch, that when activated by current, can "turn" off the bottom pins when plugged in one way, and then the other pins when plugged in another way. I have thought about it and I can use a simple OR Gate, for the constant 5V, but OR Gates will not work going in two directions or at a varying voltage of 10mV to 3.3V. I was thinking that perhaps a current activated switch would work, but it needs to be a very small chip, and relatively low cost. Anybody have any ideas? Sorry for the poor picture. I am not an artist. ;) Thanks, in Advance. -Sterling

Question by XP1    |  last reply


witch copanyies ship free elctronic samples to the uk?

I was looking for some sites that give away free elctronic samples and ship to the uk can you suggest me some?

Question by sharlston    |  last reply


Salvaging copper from transformers?

I am trying to salvage copper wire from transformers. I get these tranformers from old elctronic waste. I wondered if anyone had suggestions or thoghts about doing this. Has anybody on here done this? Thanks

Question by nurdee1    |  last reply


What are some recent topics to make an innovative electronics project?

I'm not sure whether i can ask such type of queestions here or not , I am interested in analog electronics,microelectronics,semiconductors .What can be some innovation i can contribut to elctronics. Any help would be recommended.

Topic by jatinbatra    |  last reply


what smd components can I use to make a voltage regulator? Answered

I have components from a laptop hard drive and would like to know which components on the controller board can be used to make a voltage regulator that regulates voltages at 3,6,9 and 12 volts.

Question by techfix1    |  last reply


I need LED help.....

I want to make an LED project that fakes an Audio Level Meter that looks like this:http://sound.westhost.com/p60.gifMost like 3 red LEDs first, then 3 Yellow LEDs, then 3 Green LEDs. Ideally it would be battery powered. It doesn't need to have two rows, one would suffice. But they'd have to glows in a line at random lengths to mimic actual sound level monitoring (bar mode, not dot).Also I'd like to use the small square type of LEDs used in the Microdot wrist watch instructable, unless those are harder to work with. What are those called?If it's easier to make an actual sound meter with a condensor mic or something, directions for that would also be appreciated. I found this but it seems complicated as I haven't done elctronics since high school.http://www.electronics-lab.com/projects/motor_light/009/index.htmlAny help would be much appreciated!

Topic by mrshow555    |  last reply


could I turn one of those old barbie cars for kids that only go 5 mph into a mini offroad beast? Answered

Do you remember those old barbie cars for kids that only go about 5 mph, a barbie radio, pedals for brakes and going forward. Those old things. I am not good with motars engines elctronics thta stuff i am more of a machanicle(i know thats misspelled) builder so I am no good at that type of thing. But I was wondering if someone could tell me how to turn the barbie car into a mini off-raod beast and the parts I need to do it. Im not going to make an ible' on it since it would suck so anyone can use the idea. I want it to go about 10mph+. Try to keep it low price too. I dont have the car right now cause if i got one and no one commented then it would be a waste. So can someone help me? 

Question by ostomesto    |  last reply


Can somebody tell me a thing or two about this AC servo/stepper motor (mitsubishi)?

Hey I'm planning on building a mini/desktop-ish CNC milling machine, so I've started gathering materials for the building of it (when ever i stumple upon a great deal :) ) SO I've got this big Mitsubishi AC servo/ stepper motor (from a real industrial CNC machine) it's not working (that's why I got it for free) I'm trying to disassemble it to see if it's something fixable (for me)... It's divided into two compartments the first "chamber" contains the elctronics; (looks like an optic sensor and some other stuff)... well IT WAS FILLED WITH OIL!? that surprises me since my logic sense tells me that electronics and liquids don't mix? is it supposed to be filled with oil or could that be the reason why it doesn't work? (the electronics/ chamber 1 is pic 4-6) I can't disassemble it any further... even thoug i can't se any more screws... has anyone done something like that before and can tell me how to proceed? (btw. I'm pretty sure the second (and last) "chamber" contains the stators and the actual motor parts..) someone please help me... It would be a REALLY nice start of a hobby CNC milling machine project to get a strong, professional and WORKING stepper motor :D so come with all the inputs you can think of. will be greatly appreciated! (sorry for the no so good pictures..)

Question by lordl9999    |  last reply