#1
Hey guys

Just a quick question - I'm fixing an amp and it looks like one of the capacitors has gone. However its a style I've not seen before... it looks like a resistor but with a pale/mint green body rather than the usual resistor colour. Can't see these on my usual supplier - would a normal ceramic disc capacitor be a suitable replacement, or is there something special about these resistor-style ones?

Thanks!
#3
it's prolly an electrolytic cap, meaning you just gotta make sure you put the + with the + and the - with the - or else it'll seriously blow up hahah.
#4
Quote by Crimson_tornado
Hey guys

Just a quick question - I'm fixing an amp and it looks like one of the capacitors has gone. However its a style I've not seen before... it looks like a resistor but with a pale/mint green body rather than the usual resistor colour. Can't see these on my usual supplier - would a normal ceramic disc capacitor be a suitable replacement, or is there something special about these resistor-style ones?

Thanks!
That sounds like a "Bumblebee" or more likely, something similar to it.

Paper in oil. High quality. Hard to find and VERY expensive these days.

Most of the ones I've seen were brown, but I vaguely remember seeing some in green.

Sprague - Bumblebee identification chart



A ceramic disk will "work" but might not be the best choice.

Depending on the size, a Polyester or Mylar would be decent choices.

http://members.aol.com/sbench102/caps.html
Meadows
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#5
I would think that as long as you get a capacitor of the same value, and connect the poles the right way, you'll be fine.




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#6
Quote by SomeoneYouKnew
That sounds like a "Bumblebee" or more likely, something similar to it.

Paper in oil. High quality. Hard to find and VERY expensive these days.

Most of the ones I've seen were brown, but I vaguely remember seeing some in green.


A ceramic disk will "work" but might not be the best choice.

Depending on the size, a Polyester or Mylar would be decent choices.


Cheers mate, but I'm not so sure... its a recent bit of kit, probably about 5 -10 years old.

I'll try and get a pic up here soon. Thanks for the help so far!
#7
I read your OP again. You mentioned looking like resistors, so I had immediately thought of colored bands to indicate value. But YOU didn't mention anything at all about bands.

Here are some film / foil caps made by Solen. (teflon / tin)
They have a cylindrical body, and axial leads, like a resistor has:



Is this closer to what you're describing?

btw, here's the page on Solen's website:

http://www.solen.ca/caps/fet.htm
Meadows
Quote by Jackal58
I release my inner liberal every morning when I take a shit.
Quote by SK8RDUDE411
I wont be like those jerks who dedicate their beliefs to logic and reaosn.
#8
Nope sorry mate, when I say they look like resistors, they look exactly like resistors. Same size, shape, with coloured bands, just a different body colour. I'll try and get a pic up, difficult to get one to focus properly though
#9
Try taking it out and measuring it's resistance with a DMM- if it's a cap it won't let any DC through, and the value will be something less than infinity if it's a resistor.
#10
Yeah, tried that, definately a cap
Here's a couple of pics, nightmare to get a decent pic of though, I tried my best. Put a resistor next to it as well for comparison. Thanks guys