Quality capacitors without breaking the bank

philb · 6th January 2006, 05:37 AM

I am building Rod Elliot's constant Q expandable graphic equaliser. http://www.sound.westhost.com/project75.htm .

I have been reading and re-reading his article for a few weeks putting together everything i can find. I have come to choosing components, and have run into a snag. I would like to use foil polyprop caps, but since the circuit requires so many caps i will be broke. Also 1% metal film capacitors are not cheap.

I was looking at digikey BC components metalized POLYESTER film caps, and yageo 1% metal film resistors.

Are these good choices, or are is there a better bang for my buck? Thanks guys.

sagarverma · 6th January 2006, 05:46 AM

both r good.
i made his 12db xover with philips m/f caps.its working great.

head_spaz · 7th January 2006, 04:06 AM

Quote:

digikey BC components metalized POLYESTER film caps

Can you give me a page number in their online catalog for these?
I did a search and see only polypropylene listed for BC components. Even so... I couldn't find any metalized versions.

I used Polypropylene Film from EPCOS @ 5% tolerance in my last EQ project. They work good.

jpl · 7th January 2006, 09:06 AM

Try E-bay very cheap .

philb · 8th January 2006, 09:06 PM

head_spaz

the BC components caps were metalized POLYESTER film caps, not polyprops. Thanks for the heads up on epcos polyprop caps, but i think for a few bucks extra i will go with the tighter toleracne of the BC componenets metallized POLYPROP filter caps, unless there is a reason i should not.

I will aslo check e-bay but i don't think i will find all the value.

Thanks fot the help, i'll post pics when i start building.

6th January 2006, 05:37 AM	#1
philb diyAudio Member Join Date: Feb 2004 Location: Canada	Quality capacitors without breaking the bank I am building Rod Elliot's constant Q expandable graphic equaliser. http://www.sound.westhost.com/project75.htm . I have been reading and re-reading his article for a few weeks putting together everything i can find. I have come to choosing components, and have run into a snag. I would like to use foil polyprop caps, but since the circuit requires so many caps i will be broke. Also 1% metal film capacitors are not cheap. I was looking at digikey BC components metalized POLYESTER film caps, and yageo 1% metal film resistors. Are these good choices, or are is there a better bang for my buck? Thanks guys.

6th January 2006, 05:46 AM	#2
sagarverma diyAudio Member Join Date: Feb 2005 Location: NEW DELHI	both r good. i made his 12db xover with philips m/f caps.its working great. __________________ Never Underestimate The Bandwidth of A Station Wagon Full Of Magnetic Tapes Hurtling Down The Highway...................Andrew S Tanenbaum

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7th January 2006, 09:06 AM	#4
jpl diyAudio Member Join Date: Aug 2004 Location: tasmania	Try E-bay very cheap .

8th January 2006, 09:06 PM	#5
philb diyAudio Member Join Date: Feb 2004 Location: Canada	head_spaz the BC components caps were metalized POLYESTER film caps, not polyprops. Thanks for the heads up on epcos polyprop caps, but i think for a few bucks extra i will go with the tighter toleracne of the BC componenets metallized POLYPROP filter caps, unless there is a reason i should not. I will aslo check e-bay but i don't think i will find all the value. Thanks fot the help, i'll post pics when i start building.

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