Capacitors
Nov 10, 2008 at 1:03 AM Thread Starter Post #1 of 10

rdmorris

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What qualities make a capacitor good for amplifying sound? How would the caps in this Flashlight fair?
 
Nov 10, 2008 at 1:21 PM Post #4 of 10

HiFlight

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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.
 
Nov 10, 2008 at 1:30 PM Post #5 of 10

atbglenn

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Tubes and Transistors modulate the power supply voltage. They do not amplify, just act as valves. Correct?
 
Nov 10, 2008 at 10:37 PM Post #7 of 10

Tridacnid

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So, wait, I'm wrong?
confused.gif
 
Nov 11, 2008 at 1:27 AM Post #8 of 10

Jo6Pak

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Quote:

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



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

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