View Full Version : Bumble bee value?


Kamakiri
05-04-2013, 08:39 AM
Working on the formerly live-mouse-infested Magnavox, and there's only one bumblebee in it. Just so I don't screw this up ;) , can anyone help me out with the value of this cap? TIA :)

snelson903
05-04-2013, 09:07 AM
looks like .047 but im unsure of the color of the 4th band is blue or gray, if you have 600 v i would use it depending on what circuit its in.

N2IXK
05-04-2013, 09:22 AM
.047 @ 400v

twbranch
05-04-2013, 09:29 AM
Man it must be early. I though you meant cash value! Geez coffee please!

N2IXK
05-04-2013, 10:39 AM
The ones with cash value are .022 @ 400V. Here's a pair of used ones for $75:

http://www.ebay.com/itm/2-Sprague-Bumble-Bee-Capacitor-Pulls-Gibson-022-400v-Vintage-1950s-/171021720048?pt=Vintage_Electronics_R2&hash=item27d1b059f0

The vintage guitar guys are giving the audiophools a run for their money in the gullibility department...

snelson903
05-04-2013, 11:50 AM
isnt that something ,dont people checkout anything, iv seen this before with wax paper too.

Celt
05-04-2013, 06:33 PM
I have a modern Mallory .047uF ~ 600V, Tim...you want it?

Kamakiri
05-05-2013, 04:58 AM
I actually stock plenty of the .047 @ 630v. I buy em in bulk :)

Kamakiri
05-05-2013, 07:15 AM
Two more of these, guys, if you would. These are on the Zenith Custom 23 Super H Chassis. I just don't trust my eyes, and I don't have a schematic handy :)

N2IXK
05-05-2013, 02:32 PM
First Pic--0.1uF @ 600V
Second Pic--0.1uF @ 200V

Electronic M
05-08-2013, 01:02 AM
I like to use a conversion chart such as this: http://antiqueradio.org/art/recap13.jpg
I have a better one printed out, but can't remember where I found it on the net.

If you can read resistor color code, the capacitance is the resistor color code of those 'K' numbers on modern yellow replacements. For example a bumble bee with the first three bands YEL PUR ORG decodes to 473 which can be replaced by a modern cap with value of 473K(this is 47*10^3 thousand pico farads or .047uF)

Kamakiri
05-21-2013, 07:24 PM
Still a bit confusing for me. How do you get the voltage rating?

One more, gentlemen, if you don't mind :)

Eric H
05-21-2013, 08:42 PM
Still a bit confusing for me. How do you get the voltage rating?

One more, gentlemen, if you don't mind :)

A little hard to make that one out.
If it's Brown, Black, Yellow it would be .1, the Blue stripe at the end would make it 600 volts.

The last stripe is the voltage and it's the same color code, Brown=100v, red=200v, yellow=400v, Blue=600v.

Not sure what that 4th band is, possibly tolerance?

Eric H
05-21-2013, 08:46 PM
Here's a link to a chart for BB Caps. 4th band is tolerance, Black is 20%, probably don't have to worry tolerance unless it's a green stripe, that's 5%, white is 10% and most modern caps are probably going to be within that.

http://www.pickguardian.com/pickguardian/Images/Sprague%20Bumblebee%20Chart.pdf

ChrisW6ATV
05-22-2013, 06:15 PM
I agree with 0.1uF/600v for that last one.

Kamakiri
06-08-2013, 06:49 AM
Let's see if I've got this. I read this as 473, or .047 uF, I'd put in a 630V.

Eric H
06-08-2013, 02:19 PM
Let's see if I've got this. I read this as 473, or .047 uF, I'd put in a 630V.

Yep. .047, I can't see the voltage stripe clearly but looks red? That would be 200 volts so the 630 will handle it nicely.