[rdmorris]

What qualities make a capacitor good for amplifying sound? How would the caps in this Flashlight fair?

 

[Tridacnid]

A capacitor doesn't amplify anything. It just stores energy. Transistors and tubes amplify sound.

 

[Jahvetti]

Transistors and tubes do not amplify sound.

 

[HiFlight]

Quote:

Originally Posted by Jahvetti /img/forum/go_quote.gif Transistors and tubes do not amplify sound.

Transistors and tubes amplify AC voltages, which when applied to a transducer of some sort, (speaker, headphone, crystal, etc) result in sound energy.

Many amplifier circuits use capacitors to pass this AC voltage to another circuit stage while blocking DC voltages (coupling capacitors, blocking capacitors) as well as for storage of supply energy.

 

[atbglenn]

Tubes and Transistors modulate the power supply voltage. They do not amplify, just act as valves. Correct?

 

[Jahvetti]

Quote:

Originally Posted by HiFlight /img/forum/go_quote.gif ?????????

Just keep reading it again and again. (Okay he did edit it in the meanwhile.)

The question of original poster is really general. Maybe the big capacitor thread can help.

 

[Tridacnid]

So, wait, I'm wrong?

 

[Jo6Pak]

Quote:

Originally Posted by Tridacnid /img/forum/go_quote.gif So, wait, I'm wrong?

I think you would have been ok if you had left off the word 'sound'. I knew what you meant...

 

[Tridacnid]

Ahh, I see. I meant the electrical wave that goes through the transducers to make sound, but it looks like I got lazy.

 

[PhaedrusX]

here is a good place to start:

ecp.cc