dose anyone know where i can get a Hz - uF graph?

adrian nelson · 03-01-04, 10:28 PM

dose anyone know where i can get a Hz - uF graph?
if such a thing exist, the problem is i know the appox crossover frequencys i want but i dont know the correct copastors to use.

thanks for the help

PatrickBateman · 03-04-04, 04:51 PM

Get an oscilloscope. You might be able to find a decent used one. They are rather expensive, but almost infinitely useful and often necessary for work on electronics. Any good shop should have one ...

james.miller · 03-05-04, 09:48 AM

that isnt exactly the best idea, is it? lol fancy telling him to blow money on a multi-thousand $$$ oscilloscope

Get yourself some freeware cross-over design software. that'll tell you everything you need to know.

http://www.linearteam.dk/default.aspx?pageid=winisd

WinISD. It's free, and apparently it will sort out cross-overs for you aswell.

EDIT: yes, it does

PatrickBateman · 03-05-04, 12:33 PM

It is exactly the best idea.
threadcraping is my spceicalty

james.miller · 03-05-04, 12:35 PM

no it isnt

multi thousand $$ scope, or free software that does the work for you.

Yeah, great idea there mate.

PatrickBateman · 03-05-04, 12:47 PM

OK, OK. I don't want to make enemies, although I would like to see England in the springtime.

I think I intrepreted the meaning of the word "graph" differently than intended: as a detection mechanism, instead of a chart.

Yeah, the 'scope won't help him in this situation (not a sarcastic "yeah"). Still, they're pert-snazzy to have around. In this case it would only confirm what's printed on the caps: no use at all.

--excuse my emotions, please

adrian nelson · 03-06-04, 10:33 PM

thanks fo the help, although i found a website that has a calcular to work out the stuff i need,
and yer i prolly *need* an oscilloscope but what i need and what i can/ chose to aford are two different things

Voodoo Rufus · 03-09-04, 11:58 PM

/me breaks out Eng-100 Circuits notebook, rummages through notes.

omega = 1 / R * C.
R = impedance of speakers, C = capacitance in F.

omega = 2 * pi * F ==> F = omega / (2 * pi)

F is your cutoff frequency.

WinISD is so much fun to play with, esp. toying with Stryke AV12/15 Mk.2s....Tumults.....PRs....sealed boxes...

03-01-04, 10:28 PM	Thread Starter #1
adrian nelson Member Join Date: Jun 2003 Location: new zealand	dose anyone know where i can get a Hz - uF graph? dose anyone know where i can get a Hz - uF graph? if such a thing exist, the problem is i know the appox crossover frequencys i want but i dont know the correct copastors to use. thanks for the help
	QUOTE Thanks

03-04-04, 04:51 PM	#2
PatrickBateman Member Join Date: May 2002 Location: Seattle, WA, USA	Get an oscilloscope. You might be able to find a decent used one. They are rather expensive, but almost infinitely useful and often necessary for work on electronics. Any good shop should have one ... __________________ I have to return some video tapes. HeatWare
	QUOTE Thanks

03-05-04, 09:48 AM	#3
james.miller Member Join Date: Jun 2002 Location: Dunstable, uk	that isnt exactly the best idea, is it? lol fancy telling him to blow money on a multi-thousand $$$ oscilloscope Get yourself some freeware cross-over design software. that'll tell you everything you need to know. http://www.linearteam.dk/default.aspx?pageid=winisd WinISD. It's free, and apparently it will sort out cross-overs for you aswell. EDIT: yes, it does __________________ The HTPC E2160 @ 2.7ghz \| Thermaltake The Orb cooler \| Asus p5w-dh \| 4Gb DDR-II pc6400\| 1.00Tb of WD AAKS storage \| Asus Xonar D2\| 360 HD-DVD drive Pioneer bd204 bluray sata drive \| Corsair HX620w PSU \| *BFG GeForce 8800GTX* \| Silverstone SST-LC17b \| 22" dell e228wfp \| 40" 1080p SONY 40w2000 ONKYO TX-SR805 \| bi-amped mission m71i fronts \| eltax center & bipolar rears 2x 12" custom built subwoofers powered by a denon pma-100m \| PS3 with linux and a 250gb 3.5" internal drive \| Nintendo wii Last edited by james.miller; 03-05-04 at 10:57 AM.
	QUOTE Thanks

03-05-04, 12:33 PM	#4
PatrickBateman Member Join Date: May 2002 Location: Seattle, WA, USA	It is exactly the best idea. threadcraping is my spceicalty __________________ I have to return some video tapes. HeatWare
	QUOTE Thanks

03-05-04, 12:35 PM	#5
james.miller Member Join Date: Jun 2002 Location: Dunstable, uk	no it isnt multi thousand $$ scope, or free software that does the work for you. Yeah, great idea there mate. __________________ The HTPC E2160 @ 2.7ghz \| Thermaltake The Orb cooler \| Asus p5w-dh \| 4Gb DDR-II pc6400\| 1.00Tb of WD AAKS storage \| Asus Xonar D2\| 360 HD-DVD drive Pioneer bd204 bluray sata drive \| Corsair HX620w PSU \| *BFG GeForce 8800GTX* \| Silverstone SST-LC17b \| 22" dell e228wfp \| 40" 1080p SONY 40w2000 ONKYO TX-SR805 \| bi-amped mission m71i fronts \| eltax center & bipolar rears 2x 12" custom built subwoofers powered by a denon pma-100m \| PS3 with linux and a 250gb 3.5" internal drive \| Nintendo wii
	QUOTE Thanks

dose anyone know where i can get a Hz - uF graph?

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03-05-04, 12:47 PM	#6
PatrickBateman Member Join Date: May 2002 Location: Seattle, WA, USA	OK, OK. I don't want to make enemies, although I would like to see England in the springtime. I think I intrepreted the meaning of the word "graph" differently than intended: as a detection mechanism, instead of a chart. Yeah, the 'scope won't help him in this situation (not a sarcastic "yeah"). Still, they're pert-snazzy to have around. In this case it would only confirm what's printed on the caps: no use at all. --excuse my emotions, please __________________ I have to return some video tapes. HeatWare
	QUOTE Thanks

03-06-04, 10:33 PM	Thread Starter #7
adrian nelson Member Join Date: Jun 2003 Location: new zealand	thanks fo the help, although i found a website that has a calcular to work out the stuff i need, and yer i prolly need an oscilloscope but what i need and what i can/ chose to aford are two different things
	QUOTE Thanks

03-09-04, 11:58 PM	#8
Voodoo Rufus Powder Junkie Moderator Join Date: Sep 2001 Location: Bakersfield, CA	/me breaks out Eng-100 Circuits notebook, rummages through notes. omega = 1 / R * C. R = impedance of speakers, C = capacitance in F. omega = 2 * pi * F ==> F = omega / (2 * pi) F is your cutoff frequency. WinISD is so much fun to play with, esp. toying with Stryke AV12/15 Mk.2s....Tumults.....PRs....sealed boxes... __________________ "I am a leaf on the wind, watch how I soar!" Serious Gamers Halo Custom Edition Green Leaves!
	QUOTE Thanks

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