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Old 19th March 2011, 10:15 PM   #1
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Default Went to the surplus yard today (got capacitors)

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Yes that is a 6" steel ruler, those are some big CD 1800uf 400V caps. I also got a bag of capacitor screws. I love Los Angeles!
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Old 19th March 2011, 10:38 PM   #2
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Quote:
Originally Posted by A3rd.Zero View Post
Click the image to open in full size.

Link to tagged photo for values

Yes that is a 6" steel ruler, those are some big CD 1800uf 400V caps. I also got a bag of capacitor screws. I love Los Angeles!
For those of us who live in So Cal or visit So Cal where did you get all that stuff?
Where did you buy it?
Thanks
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Old 19th March 2011, 10:43 PM   #3
MunkeyQ is offline MunkeyQ  United Kingdom
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Liking those big film caps, and the little yellow ones. Now you've got to build something to use them in!

Not sure if those paper ones are going to be much cop though, and same with the older electrolytics.
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Old 19th March 2011, 10:46 PM   #4
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I bought a cap meter a few weeks ago when I stumbled upon this place. It's called Apex electronics, and it's really a crazy score. The CD caps were in a box of around 100 of them, on top of four boxes all marked the same. $5 each.

I'm sure that the paper ones are gone but I liked the look so I'm going to meter them then scope them and see how they test.

If you go to apex, go to the back wall behind the capacitor isle, it's transformer alley!!
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Old 19th March 2011, 10:55 PM   #5
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Quote:
Originally Posted by A3rd.Zero View Post
I bought a cap meter a few weeks ago when I stumbled upon this place. It's called Apex electronics, and it's really a crazy score. The CD caps were in a box of around 100 of them, on top of four boxes all marked the same. $5 each.

I'm sure that the paper ones are gone but I liked the look so I'm going to meter them then scope them and see how they test.

If you go to apex, go to the back wall behind the capacitor isle, it's transformer alley!!
Oh yeah, I've been to Apex before, up there at the north eastern end of the San Fernando Valley. It's an incredible place/yard full of all kinds of stuff!
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Old 20th March 2011, 09:42 PM   #6
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Perhaps this is the place?!

Apex Electronics

Peace,

Dave

P.S. If so from what I read, his son is Apexjr.
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Old 20th March 2011, 11:39 PM   #7
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Default Toxic Waste Alert....

Many of the older larger size electros and paper/oil caps contain PCB's - Polychlorinated biphenyl - Polychlorinated biphenyl - Wikipedia, the free encyclopedia.
These have a characteristic phenolic smell (freshly cut/filed bakelite smell) and should be totally avoided.
This odour will quickly permeate your garage/living space and takes very long time to dissipate.


Eric.
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Old 20th March 2011, 11:55 PM   #8
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Quote:
Originally Posted by A3rd.Zero View Post
those are some big CD 1800uf 400V caps. I also got a bag of capacitor screws. I love Los Angeles!
Have you ever been to All Electronics in Van Nuys?

All Electronics | Electronic and Electro-Mechanical Parts and Supplies at Discount Prices
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Old 21st March 2011, 02:27 AM   #9
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I've got a lot of surplus 97 date 400V 1600 uf electrolytics from motor drives, but I am afraid to use them. With that much energy, if they are dried out or the rubber seals are bad and they do dry out when hot, they go off with a bang. I'll use small ~50-100 uf electrolytic caps that are old but unused in circuits with enough impedance to limit the explosion if they go, and easy enough to reach to replace if they do go off. Plastic film caps are forever. I've bought transformers & circuit breakers from Apex.
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Old 21st March 2011, 04:18 AM   #10
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Default PCB Caps

Quote:
Originally Posted by mrfeedback View Post
Many of the older larger size electros and paper/oil caps contain PCB's - Polychlorinated biphenyl -
These have a characteristic phenolic smell (freshly cut/filed bakelite smell) and should be totally avoided.
This odour will quickly permeate your garage/living space and takes very long time to dissipate.Eric.
'Sounds like you have personal (bad) experience there, Eric.
It would be good to identify these because most such capacitors were BIG. Typically, all paper in oil caps are large for their electrical specification and have to be sealed, so they are metal cased, surmounted by insulated terminals. To choose one of these
babies for your amp, and then likely only HV tube types, you would be quite aware that something was wrong or inappropriate from
the first glance. Why people are so attracted to vintage components is not just amusing, with HV it's audiophoolishness. The only
way to be certain of them being PCB free, without a genuine declaration for the exact part, is for a recent date of manufacture by a reputable manufacturer.
Still fancy your chances on Ebay or a warehouse clearance?
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Last edited by Ian Finch; 21st March 2011 at 04:22 AM.
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