help what do they do

crazyboy · 30th January 2010, 08:11 AM

Ok next question is on the wiring to the tweeter there is 2 components that are soldered in series on a board

20w33r and a 47uf capacitor 250 vac is this like a high pass filter or just basic protection

all help appreciated.....

Francec · 31st January 2010, 12:39 AM

Is this English? If so, where are the capitals and punctuation?
Common courtesy would dictate proper English when asking for assistance.

DcibeL · 31st January 2010, 12:52 AM

"next question" would imply that there was a first question.

20W33R would be 20 Watt, 33 Ohm resistor

47uF 250VAC would be 47uF cap, rated to 250 Volts AC.

What they do, well you'd need a schematic for that, all you've listed is two parts with no other information.

Moondog55 · 31st January 2010, 04:38 AM

Quote:

Originally Posted by Francec

Is this English? If so, where are the capitals and punctuation?
Common courtesy would dictate proper English when asking for assistance.

Queens English preferred if you are British

Qinz Anglish if Ozzie??

Probably a Zobel but without a schematic it is only a WAG?

critofur · 31st January 2010, 04:58 AM

I can tell you exactly what it does: it lets some electrons through but not others.

mcmahon48 · 31st January 2010, 07:07 AM

It is looking like it is for the Zobel Impedance stablizer network for the woofer unless there is another cap in series and the resistor in parallel, for 1 cap for 6db is not going to be that high usually up to 8 uf max. So either you are missing a cap before that one and there should be also a coil in parallel for making a third order. And you would not need to use such a high wattage resistor for a tweeter.

chris661 · 31st January 2010, 07:45 AM

Or such a high voltage cap.

I read this as a simple 1st order crossover, but a resistor in series to compensate for efficiency differences between the tweeter and the woofer.

crazyboy · 1st February 2010, 08:29 AM

Ok you guys obviously know your stuff, im trying to learn and a big thanks to the ones that answered me.

The way i described the components is how they are, just a small board 2 components going to tweeter.

Maybe i should've said its a 350wrms 8ohm woofer and a 100w 1000kohm tweeter.

crazyboy · 1st February 2010, 08:32 AM

The use of these components does not got to woofer at all, just thought i would let that be known also..

DougL · 1st February 2010, 02:00 PM

Neighbor,
A drawing would speak volumes.

Doug

30th January 2010, 08:11 AM	#1
crazyboy diyAudio Member Join Date: Jan 2010 Location: swindon	help what do they do Ok next question is on the wiring to the tweeter there is 2 components that are soldered in series on a board 20w33r and a 47uf capacitor 250 vac is this like a high pass filter or just basic protection all help appreciated.....

31st January 2010, 12:52 AM	#3
DcibeL diyAudio Member Join Date: May 2003 Location: Saskatchewan	"next question" would imply that there was a first question. 20W33R would be 20 Watt, 33 Ohm resistor 47uF 250VAC would be 47uF cap, rated to 250 Volts AC. What they do, well you'd need a schematic for that, all you've listed is two parts with no other information. __________________ The power of Science compels you!

31st January 2010, 04:58 AM	#5
critofur diyAudio Member Join Date: Jan 2004 Location: Columbus, OH	I can tell you exactly what it does: it lets some electrons through but not others. __________________ Critofur http://www.ohmspeakers.com <- all the folks here are my friends

31st January 2010, 07:07 AM	#6
mcmahon48 diyAudio Member Join Date: Aug 2008	From what I see it is It is looking like it is for the Zobel Impedance stablizer network for the woofer unless there is another cap in series and the resistor in parallel, for 1 cap for 6db is not going to be that high usually up to 8 uf max. So either you are missing a cap before that one and there should be also a coil in parallel for making a third order. And you would not need to use such a high wattage resistor for a tweeter.

31st January 2010, 07:45 AM	#7
chris661 diyAudio Member Join Date: Feb 2008 Location: Lancashire Blog Entries: 7	Or such a high voltage cap. I read this as a simple 1st order crossover, but a resistor in series to compensate for efficiency differences between the tweeter and the woofer. __________________ "Throwing parts at a failure is like throwing sponges at a rainstorm." - Enzo My setup: http://www.diyaudio.com/forums/multi...tang-band.html


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31st January 2010, 12:39 AM	#2
Francec Banned Join Date: Jul 2006 Location: Port Melbourne, Australia	Is this English? If so, where are the capitals and punctuation? Common courtesy would dictate proper English when asking for assistance.

1st February 2010, 08:29 AM	#8
crazyboy diyAudio Member Join Date: Jan 2010 Location: swindon	Ok you guys obviously know your stuff, im trying to learn and a big thanks to the ones that answered me. The way i described the components is how they are, just a small board 2 components going to tweeter. Maybe i should've said its a 350wrms 8ohm woofer and a 100w 1000kohm tweeter.

1st February 2010, 08:32 AM	#9
crazyboy diyAudio Member Join Date: Jan 2010 Location: swindon	The use of these components does not got to woofer at all, just thought i would let that be known also..

1st February 2010, 02:00 PM	#10
DougL diyAudio Member Join Date: Feb 2004 Location: Wheaton IL. Blog Entries: 25	Neighbor, A drawing would speak volumes. Doug __________________ Scienta sine ars nihil est - Science without Art is nothing. (Implies the converse as well) Mater tua criceta fuit, et pater tuo redoluit bacarum sambucus

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