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Hi ben, You can post a picture and we will try to figure out what it is!

Hi Guys, I was curious about the ad on top of the page but it did not work with my browser, anybody else got this problem?

Ok, that might work too! ;D

Why not use a can of black spray paint?

The LM7805 has its tab connected to ground so cooling it can be done by bolting it to the car chassis as it then also will be connected to negative. (Not applicable on some older British cars though!) ;D

Hi AG, Why not run them through the scanner and post them here? At least some highlights would be nice! ;)

I like your desktop Herman! ;D I think “Trace thickness” should be set to “Mills” first, try it! ;)

Hi Shahriar, I don’t know what a new ATX PSU costs in your part of the world but where I live they are very cheap, almost no one repair them and in doing so jeopardizeing the life of the computer. As you put it “Sometimes, Shit Happens!” ! ;D Perhaps you are doing this for educational purposes? ;)

Hi sergen, I have changed your image to a more suitable format for posting (PNG). The size is now 10k instead of 2019.4k (200 times smaller) and it is easier to see to. Please use this format, the pages loads much faster and members using dialup will be more comfortable.

Hi vinodkp, Welcome to our forum. I am sorry to hear about these problems, the first thing that comes into my mind is your software. Since you are using winace and I have no experience with this software I would recommend trying your files with WinRar which is the software used to compress these files. When using WinRar, remember that all the parts must be in the same folder when unpacking. Good luck and please let us know how it develops!

The current limit circuit will work with almost any NPN transistor.

Hi Guys, OT but way back we called TV-sets containing tubs and transistors hybrids! ;)

You can start by dismantling the Walkman so you can see what parts you have to play with! Then you come up with an idea and we’ll see. ;)

Some inductive loads can overheat when using square wave.

Hi catsfly, Welcome to our forum. You probably have to custom build a controller circuit for your motor. We need to know the motor data, the voltage from your outlet and perhaps a few things more to be able to help out.

That’s correct John, almost never ;)

I suggest a fuse (in series) and a 32V MOV (in parallel) on the power input of the board.

I’d say it’s 99.99% sure they are capacitors!

OK, so this is no longer an open forum?! You fix it through the mail so no one else can learn from it?! Fine! I am not sure I want to participate in a dictatorship! Thank you!

Hi henry, A picture would help significantly!

As I mentioned before; I believe it’s a capacitor too! Yes it makes sense. ;)

Hi Victor, I don’t want to rain on your parade here but I can see a few problems with this design. The fans are not suitable for this job for a number of reasons, torque, rpm and the loss of balance and the disturbance of the electronic commutating the magnets would create.

Oh the Immobilizer, well I’m not sure how it’s done on a bike but if it’s anything like many cars got you really need good knowledge about the circuit to override it! As mentioned before someone on the inside would help. Usually they put the code part inside the same chip (not only the same circuit) that has the control of the fuel pump and/or injector nozzles. This will then require microsurgery to override! ;D However some manufacturers can supply you with a new set of keys if you give the frame number and also can verify that you are the legal owner of the bike.

I believe it’s a good idea to put a MOV on the primary side of the transformer (which I presume you’ve got for the 24VAC). For 230VAC I usually put a 275V MOV as a protection, it has worked fine so far. ;)

Hi ska boss, Welcome to our forum. Are you looking for the relationship or the actual current capability here?