anyone know about wiring?

[Mr.SelfDestruct]

does anyone on here have any experience w/ wiring, and possibly amps(like guitar amps)?

I got this amp together, and it wont work.

the only thing is that its a bit different from a conventional amp.

its the size of an altoids can.

http://tangentsoft.net/audio/cmoy-tutorial/assy.html
theres the tutorial for it.
I'll post pics of mine tomorrow, because I'm pissed right now.

 

[SP 7M]

I know enough about wiring to have come to the conclusion that I hate it.

An Altoids can-sized amp? You should strap that thing to yourself and walk around town melting people's faces like Dimebag did in one of the Pantera home videos. That's some funny shit!

 

[Mr.SelfDestruct]

I know enough about wiring to have come to the conclusion that I hate it.

An Altoids can-sized amp? You should strap that thing to yourself and walk around town melting people's faces like Dimebag did in one of the Pantera home videos. That's some funny shit!

lol, its for headphones.

 

[jetjock]

Those are pretty good instructions Since that's a very simple design I suggest you go over it again to make sure nothing is shorted and everything installed correctly. The 220 uf caps are electrolytics so be sure they're installed correctly with the + side going to power on the 9 volt rail and the negative going to - on the negative rail. Same with the audio amp. Be sure you referenced pin 1 correctly. It'll be the pin on the left of the IC with the indentaion facing up.

Does the LED light when you connect the battery? If not start with the power section first. Be sure the anode of the LED (the part that looks like an arrow on the schematic) is connected to the + thru the 10k resistor. The cathode on an LED is either the shorter of the two leads or the one with the flat on the LED's housing, the anode is the other. Did you read the troubleshooting section on the site? This is a really simply circuit so you must have installed something wrong or something is shorted.

 

[wingman]

I know enough about wiring to have come to the conclusion that I hate it.

i'm with this guy....even a car stereo install is a PITA to me. If I were you I'd have just went out and bought something, or taken it to a friend who knows what he's doing LOL

 

[Mr.SelfDestruct]

Those are pretty good instructions Since that's a very simple design I suggest you go over it again to make sure nothing is shorted and everything installed correctly. The 220 uf caps are electrolytics so be sure they're installed correctly with the + side going to power on the 9 volt rail and the negative going to - on the negative rail. Same with the audio amp. Be sure you referenced pin 1 correctly. It'll be the pin on the left of the IC with the indentaion facing up.

Does the LED light when you connect the battery? If not start with the power section first. Be sure the anode of the LED (the part that looks like an arrow on the schematic) is connected to the + thru the 10k resistor. The cathode on an LED is either the shorter of the two leads or the one with the flat on the LED's housing, the anode is the other. Did you read the troubleshooting section on the site? This is a really simply circuit so you must have installed something wrong or something is shorted.

thanks!


and the Idea is to not know what I'm diong, as this is for my senior project.

I gotta do this to graduate. lol.

 

[jetjock]

I see. No wonder it's 9 volt battery powered. If you put electrolytics in backwards they'll explode so whoever designed this as a school project probably wanted to avoid that. It's the lawyers ya know.

I didn't read the instructions in detail so there could be a mistake in them. Barring that, if you simply go over them again carefully you should be able to find the problem. Break it down into two sections: power supply and amp.

I'm assuming you're new at soldering so examine your work closely for cold joints, shorts, blobs, and "bridges" between adjacent pads on the protoboard. Also check the resistor values and make sure you have the right ones in the right place. It's a simple circuit so it has to be "operator error" unless you fried something with the soldering iron. Unlikely, but possible.

You never did say if the LED lit up. That would have made it a lot easier to troubelshoot.

 

[Mr.SelfDestruct]

I see. No wonder it's 9 volt battery powered. If you put electrolytics in backwards they'll explode so whoever designed this as a school project probably wanted to avoid that. It's the lawyers ya know.

I didn't read the instructions in detail so there could be a mistake in them. Barring that, if you simply go over them again carefully you should be able to find the problem. Break it down into two sections: power supply and amp.

I'm assuming you're new at soldering so examine your work closely for cold joints, shorts, blobs, and "bridges" between adjacent pads on the protoboard. Also check the resistor values and make sure you have the right ones in the right place. It's a simple circuit so it has to be "operator error" unless you fried something with the soldering iron. Unlikely, but possible.

You never did say if the LED lit up. That would have made it a lot easier to troubelshoot.

the LED didnt light.

I chose the project.

we have to go out and find something we havent done before.

it wasnt chosen for me, otherwise, I woulda found a way around having to do it.

as soon as I can borrow someones multimiter again, Ima go through the circut.

this isnt my first time soldering, I used to build electric bikes w/ my homies back in the day befor we got cars:naughty:

 

[jetjock]

If the LED doesn't light it should be easy to find. Just look at that part of the circuit. The LED is right across the power and the resistor is there to limit the current. Remember, LEDS aren't light bubs....they're diodes. They need something to keep from acting like a short circuit and that's what the resistor does. But they have to be put in the circuit with the + flowing in the direction of the arrow (anode). Focus in that area. Forget about it being an amplifier and think about it only being an LED, resistor, and two batteries. Get the LED to light and (assuming no other issues) your problems will be over