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Projects => Tech Help - Projects Page => Topic started by: shay1510 on September 06, 2012, 11:14:11 PM

Title: Loophole: general tech questions
Post by: shay1510 on September 06, 2012, 11:14:11 PM
Hey guys,
Before I start I have to say that my knowledge about this stuff is not that good (yet :)) .
I'm working at the moment on the LOOPHOLE project, and wanted to be sure of some stuff
before I solder the components:

1. Capacitors: I know that one should usually choose a voltage rating of 16v-35v. I've used voltage 
    ratings between 16v-100v. I assume that it's not a problem, right?
2. Capacitors 2: I've used some ceramic caps instead of polyester film caps (according to the PDF's picture)
    I know that in general ceramic is the least favorable type, But should it work?
3. Regulator: I've got a 7805 but it seems a little big. I can also see from the picture in the PDF that
    maybe a 78l05 is being used. Which one to choose?
4. The layout diagram shows that there are two jumpers underneath the IC's. I just solder them as the   
    diagram shows? maybe it's better to put them on the opposite side of the PCB?

Thanks U for your kind help.
Title: Re: Loophole: general tech questions
Post by: sgmezei on September 06, 2012, 11:51:39 PM
Hey Dude!

1. Those caps are fine. Most people go with the lower voltage rating just for the sake of size.

2. Those caps will work. This is a "lo-fi" type of looper so you won't be able to tell a difference for those couple caps.

3. Either regulator will work but you have to check the pinout. The smaller one is what is used for this build.
I believe the larger one you have to flip the orientation (I need to check on the this).

4. I would put the jumpers on the component side of the pcb. That way you can just use snipped off leads from other components.
Title: Re: Loophole: general tech questions
Post by: shay1510 on September 07, 2012, 09:33:59 AM
Sgmezei, U're the man!
Thank u so much.
Will post some pics/video once it's done.
Title: Re: Loophole: general tech questions
Post by: sgmezei on September 07, 2012, 02:54:47 PM
Can't wait dude!