Topic: DIY - Battery Box

[kekgab]

Hi guys!

I want to build a batterx boy for myself. Can you help me? Can you show me any circuit diagrams, or something? One of my familiars has an SP battery box. And is very very good. Maybe is there any copy of PS circuits?

Thanks for the answere, and sorry if there is still a topics like that. I don't really wound it.

kekgab

[boojum]

If you go here: http://forums.minidisc.org/index.php?showtopic=11254  there are pictures, diagrams, parts list and a step-by-step to building a 9 volt battery box.   

[kekgab]

Whoo thanks! Did you build this battery box? How got is this one?

[boojum]

I have the parts, will match the resistors and start the building on Monday.  It should be fun. 

[jonohull]

I ordered my parts for this, too. As soon as they get here I'm going to start on it. Everyone on here who does this should post pictures, so we can compare our handiwork.

[Church-Audio]

I ordered my parts for this, too. As soon as they get here I'm going to start on it. Everyone on here who does this should post pictures, so we can compare our handiwork.

Dont use 2.2uf use 10uf....

[jonohull]

I ordered my parts for this, too. As soon as they get here I'm going to start on it. Everyone on here who does this should post pictures, so we can compare our handiwork.

Dont use 2.2uf use 10uf....

What's the benefit?

[Church-Audio]

I ordered my parts for this, too. As soon as they get here I'm going to start on it. Everyone on here who does this should post pictures, so we can compare our handiwork.

Dont use 2.2uf use 10uf....

What's the benefit?

Flat frequency response in the low frequencies..

Chris

[jonohull]

I ordered my parts for this, too. As soon as they get here I'm going to start on it. Everyone on here who does this should post pictures, so we can compare our handiwork.

Dont use 2.2uf use 10uf....

What's the benefit?

Flat frequency response in the low frequencies..

Chris

Thanks. When I get some money, I'm getting one of your preamps.

[taug]

I ordered my parts for this, too. As soon as they get here I'm going to start on it. Everyone on here who does this should post pictures, so we can compare our handiwork.

Dont use 2.2uf use 10uf....

What's the benefit?

Flat frequency response in the low frequencies..

Chris

Does the type of capacitor make a big difference here (electrolytic, polyester film, polypropylene film, etc...)?

[Church-Audio]

I ordered my parts for this, too. As soon as they get here I'm going to start on it. Everyone on here who does this should post pictures, so we can compare our handiwork.

Dont use 2.2uf use 10uf....

What's the benefit?

Flat frequency response in the low frequencies..

Chris

Does the type of capacitor make a big difference here (electrolytic, polyester film, polypropylene film, etc...)?

That has been a huge argument that has been going on for a long time. I will say this there is a reason why high end manufacturers of audio gear are using Metal film resistors and Mylar or polypropylene capacitors. They are very expensive compared to electrolytic and still these companies use the more expensive caps. So I say Yes buy the best caps you can afford to purchase. In small qualities we are talking about 3.00 each for a 10uf film cap. They are very hard to find in small sizes check out BC components. Or Vishay. or the best IMO WIMA caps.. If you Google any one of these you will come up with sources and places to purchase them. Remember for you application get the lowest voltage you can find. That will probably be 16volt but it might be as high as 63 volt. Remember the smaller the voltage the smaller the cap will generally be when we are talking 2uf to 10uf caps..

Chris

[Chuck]

I ordered my parts for this, too. As soon as they get here I'm going to start on it. Everyone on here who does this should post pictures, so we can compare our handiwork.

Dont use 2.2uf use 10uf....

What's the benefit?

Flat frequency response in the low frequencies..

Chris

Does the type of capacitor make a big difference here (electrolytic, polyester film, polypropylene film, etc...)?

That has been a huge argument that has been going on for a long time. I will say this there is a reason why high end manufacturers of audio gear are using Metal film resistors and Mylar or polypropylene capacitors. They are very expensive compared to electrolytic and still these companies use the more expensive caps. So I say Yes buy the best caps you can afford to purchase. In small qualities we are talking about 3.00 each for a 10uf film cap. They are very hard to find in small sizes check out BC components. Or Vishay. or the best IMO WIMA caps.. If you Google any one of these you will come up with sources and places to purchase them. Remember for you application get the lowest voltage you can find. That will probably be 16volt but it might be as high as 63 volt. Remember the smaller the voltage the smaller the cap will generally be when we are talking 2uf to 10uf caps..

Chris

Yeah, some say that if the capacitors are biased (like with DC voltage) in this application, they are neutral. I wish I had a playback system that was good enough to resolve the sound well enough that I could hear it.

[mmadd29]

I have a question about this,

What is a good frequency for bass rolloff, I know that could depend, but is there sort of a generic value you should shoot for?

[lordbelial]

I have a question about this,

What is a good frequency for bass rolloff, I know that could depend, but is there sort of a generic value you should shoot for?

60-80 hz
That's good for me.

[kekgab]

Hi! How is it going? Did someone build it?