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Topic: .05mf Cornel/Dubilier electrolytic Capacitor |
basilh
From:
United Kingdom
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Glenn Austin
From:
Montreal, Canada
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Posted 17 Sep 2002 7:54 am |
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| I think you can get that cap on the Emmons website. |
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Michael Brebes
From:
Northridge CA
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Posted 17 Sep 2002 10:00 am
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I think what you are looking for are film polyester capacitors, not electrolytic. Cornel/Dubilier film capacitors can be purchased from www.newark.com, which has a large variety of electronic parts.
If it's for a tone control, I really wouldn't use an electrolytic. |
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Rob Hamilton
From:
Acton, MA, USA
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Posted 17 Sep 2002 10:58 am
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That's Newark Electronics at http://www.newark.com/.
Another source would be Antique Electronic Supply at http://www.tubesandmore.com/.
They list a polypropylene film .047mf 600v "Orange Drop" capacitor for $0.84. That should work well and last a long time.
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Sho-Bud Pro-I, '62 Fender Vibrolux |
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Terry Downs
From:
Wylie, TX US
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Posted 17 Sep 2002 7:30 pm
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Any musical instrument that has a tone control or treble bypass capacitor on the volume control should NOT have an electrolytic capacitor. Electrolytic capacitors are made to get large amounts of capacitance in a small physical volume. They are for DC only, unless manufactured as 2 electrolytic elements back to back to make an AC capacitor. Those are used for motor start/run or high power speaker crossover applications.
Go to Radio Shack or Newark, or any electronics store and buy a 0.05uF capacitor. Ceramic, polyester film, polystyrene, whatever (except electrolytic or polarized). For small signal audio applications at instrument level, it doesn't matter what the dielectric is as long as it is not a polarized capacitor. If anyone claims any different, they are trying to rip you off with some exotic black magic trickery.
There are many capacitor types that have characteristics suited to specific applications. There are engineers that specialize in capacitor applications. Instrument level tone shaping is not one that needs a special capacitor. The only restriction is the polarized capacitors like DC electrolytic and tantalum.
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Terry Downs
http://nightshift.net
terry@nightshift.net
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Chris Lucker
From:
Los Angeles, California USA
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Posted 17 Sep 2002 8:02 pm
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Guys, I think he is looking for a replacement identical to the original, just as guys are looking for the old paper wrapped caps for early Telecasters.
Basilh. look at my post at the other thread. I may have some, if you let me know the voltage. Is it a paper wrapped and waxed cap or a plasticky cased cap?
Off topic, did you happen to know Noel Buxton in your town? He made my silk fly lines for years.
Chris Lucker |
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basilh
From:
United Kingdom
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Posted 18 Sep 2002 5:18 am
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Thanks a lot guys for the info .............Chris is right I AM looking for a direct replacement for the ORIGINAL..05mf 500volt working..... these little modern ones just DON'T sound the same or have the same effect.
Chris . I don't know Noel Buxton but am a bit of a fanatic regarding DRY fly fishing...... a graduate of the "Orvis" school.
Baz
Terry ... Do you remember "Philomena Begley"
I think you recorded with her at "Fireside" .
I was her bandleader at the time.
http://www.waikiki-islanders.com/html/basil_bio.html
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| Quote: |
| Steel players do it without fretting |
http://www.waikiki-islanders.pwp.blueyonder.co.uk
[This message was edited by basilh on 18 September 2002 at 06:20 AM.] [This message was edited by basilh on 18 September 2002 at 06:22 AM.] |
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Michael Brebes
From:
Northridge CA
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Posted 18 Sep 2002 7:52 am
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| If you're looking for something as close to vintage as possible, I would go for the high voltage ones that Rob Hamilton recommended from Antique Electronics. I believe they are manufactured by Sprague and they have been making them for years. They are the same capacitors that have been in Fender amps for years and also found in various guitars. |
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Terry Downs
From:
Wylie, TX US
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Posted 18 Sep 2002 5:26 pm
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Sorry, I interpreted your URGENT need as a functional one and not an original replacement. That would be cool to get it back to original. Try http://www.michelletroutman.com/parts.htm
And yes, those old capacitors do sound different because a 0.5uF oil or wax paper cap is no longer 0.5uF after 30+ years nor does it have the same insulation resistance. They degrade a lot from their original value. That is why the electronics industry abandoned those capacitor types a long time ago.
Good luck,
Terry |
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Gino Iorfida
From:
Pittsburgh, Pennsylvania, USA
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Posted 27 Sep 2002 10:51 am
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Check out Mouser Electronics. I'm pretty sure they carry the C/D line, and their prices are reasonable, not to mention, they don't have a minimum order IIRC, and they ship pretty fast.
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John Billings
From:
Ohio, USA
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Posted 30 Sep 2002 12:30 pm
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| When my tech rebuilt my 52 Fender Pro, he "stuffed" the old caps. Of course, they were the "cardboard tube" looking caps. he emptied out the insides of the old cap, and put a new, modern style cap inside the old cardboard tube. If you old cap is the black plasticy looking job, you still might be able to Dremel it out from the back and put a new cap inside. |
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