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Hi.. I'm trying to make a lasershow with Hard Drive Galvo's, so... Today I got a 18W Sound Amp (TDA2030A) and i connected all... At the start it was very nice, but when I touched the Amp, the hard drive started to move so fast, then i discovered that it occurs when I touch everywhere in the...

Hi, i have some troubles making a lasershow with hard drives.. When i put the two hard drives in the classic stepper motors position, the arm goes down and doesn't moves correctly, the moving is limited =/ So.. How i can fix it? Any ideas? I just solded the cable to the arm and tried to pull it...

I can't get an op-amp where you say because I dont live in USA

Well, i think i found some transistors in a toy.. I going to check if it works So, thanks anyways :D

No, i mean Transistor I use it to amplify the signal of the PC.. Right now one transistor is amplifying good, but the other one is amplifying too weak and i want to replace it, but i dont know where to find.. Edit; I found some transistors in a toy, but i seeing what can either amplify

No, no.. With where to find i mean to find for example in controls, speakers... Please tell me where i can find one plz Thanks

Hi.. I'm trying to make a nice laser projector with two hard drives, all is almost ok.. I got two transistors to increment the PC sound output, one from a TV Control and the other from my house, but, the second is too weak and i want to get another one but i dont know where to search... Can you...

I weld two cables to the top of the arm, then i just tried to pull the cables and force the arm to stay at the center, but i didn't worked because the movement is limited =/

Very nice one :D I have question.. I have two hard drives, but if I place each one in the classic position of the stepper motors, the arm goes down and doesnt move correctly =/ Can you know how to fix it? Thanks

I got temporally two transistors and all its nice, but, i have another trouble.. When i put the two hard drives in the classic stepper motors position, the arm goes down and doesn't moves correctly, the moving is limited =/ How i can fix it? Thanks

Oh thanks! I have another question... A transistor or operational amplifier will work with a 4.5V source? Thanks PD; I watched this video that shows two hard drives reacting to the high frequencies, i think is using a big amp :P

Hi, i got two hard drives 2 days ago, I connected them arm to the PC but didn't worked. Then i was trying again with the loudspeaker of a home teather, but didn't worked... Then i tried with the subwoofer of the home teather and it worked, but only with the basses =/ What i can do to amplify...