sourcing a 16000 microfarad 75volt filtering cap

Thraxeh · 26th October 2006, 10:15 AM

i'm having trouble sourcing a capacitor of these specs, where would i find one ? how much would i be looking at?

dakiller · 26th October 2006, 10:50 AM

http://au.farnell.com/jsp/endecaSear...sp?SKU=8820937
http://au.farnell.com/jsp/endecaSear...sp?SKU=8820945
http://www.rsaustralia.com/cgi-bin/b...cape&Nr=avl:au

One of them will suit, the RS one looks the best from here

Thraxeh · 26th October 2006, 11:38 AM

whoa, $65, thats a bit more then i expected. thanks for that.

wabbit · 26th October 2006, 12:21 PM

Hi Thraxeh
Have a look here:

http://www.wagner.net.au/Catalogue/02_11.pdf

The one at the bottom left of the page is close to what you want for ~$50 plus ~$4 for the mounting bracket.
Alternatively, you could use two of the ones directly above it, giving you 20,000 uF @ 100v for ~$26 for the pair.
Cheers

Thraxeh · 26th October 2006, 5:20 PM

i'm just thinking, these filtering caps are for a bass amp, which has a preamp, but i'm not using the poweramp section of the amp, just the preamp. Would it be fine to just use a lesser rated cap, maybe 8000uf ? as i will be only running a line level signal off it.

wabbit · 26th October 2006, 6:52 PM

Hi Thraxeh
The big capacitors are there to supply the transient demands of the output stage so, if you're not using it, a smaller cap should be fine.
Cheers

LethalCorpse · 26th October 2006, 11:11 PM

Why not just use two of these in parallel? 16000u 80V, with the added bonus of halved ESR.

mAJORD · 29th October 2006, 1:56 PM

what wabbit said, don't bother. just use some 1000uf jobs to give you plenty of overhead

26th October 2006, 10:15 AM	#1
Thraxeh Member Join Date: Nov 2003 Location: Sydney Australia NSW Posts: 4,132	sourcing a 16000 microfarad 75volt filtering cap i'm having trouble sourcing a capacitor of these specs, where would i find one ? how much would i be looking at?

26th October 2006, 10:50 AM	#2
dakiller (Oscillating & Impeding) Join Date: Jun 2001 Location: SE Melb Posts: 6,156	http://au.farnell.com/jsp/endecaSear...sp?SKU=8820937 http://au.farnell.com/jsp/endecaSear...sp?SKU=8820945 http://www.rsaustralia.com/cgi-bin/b...cape&Nr=avl:au One of them will suit, the RS one looks the best from here __________________ In memory of Cheers Z

26th October 2006, 11:11 PM	#7
LethalCorpse Member Join Date: Mar 2003 Location: Harris Park, NSW Posts: 3,799	Why not just use two of these in parallel? 16000u 80V, with the added bonus of halved ESR. __________________ Sig Of Shame removed.

26th October 2006, 11:38 AM	#3
Thraxeh Member Join Date: Nov 2003 Location: Sydney Australia NSW Posts: 4,132	whoa, $65, thats a bit more then i expected. thanks for that.

26th October 2006, 12:21 PM	#4
wabbit Member Join Date: Sep 2003 Posts: 408	Hi Thraxeh Have a look here: http://www.wagner.net.au/Catalogue/02_11.pdf The one at the bottom left of the page is close to what you want for ~$50 plus ~$4 for the mounting bracket. Alternatively, you could use two of the ones directly above it, giving you 20,000 uF @ 100v for ~$26 for the pair. Cheers

26th October 2006, 5:20 PM	#5
Thraxeh Member Join Date: Nov 2003 Location: Sydney Australia NSW Posts: 4,132	i'm just thinking, these filtering caps are for a bass amp, which has a preamp, but i'm not using the poweramp section of the amp, just the preamp. Would it be fine to just use a lesser rated cap, maybe 8000uf ? as i will be only running a line level signal off it.

26th October 2006, 6:52 PM	#6
wabbit Member Join Date: Sep 2003 Posts: 408	Hi Thraxeh The big capacitors are there to supply the transient demands of the output stage so, if you're not using it, a smaller cap should be fine. Cheers

29th October 2006, 1:56 PM	#8
mAJORD Member Join Date: Jun 2002 Location: Griffin , Brisbane Posts: 6,727	what wabbit said, don't bother. just use some 1000uf jobs to give you plenty of overhead