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Help with identifying vintage resistor value

snapman

Apr 2, 2013
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Any help greatly appreciated, and a Merry Christmas and Happy New Year to all.

Douglas


Am I correct with 4.73 ohms 2%.

Thank you
 

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(*steve*)

¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
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Jan 21, 2010
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given its age, i would say 47k 10%

473 is not a preferred value even for E192
 

snapman

Apr 2, 2013
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more help requested

What formula is used to read these values
 

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tech56

Dec 25, 2013
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picture 1: 61 ohm
picture 2: 1K ohm 10%
picture 3: 4.7M ohm 20%
resistor color code:
first band=first number
second band=second number
third band=multiplier
black 0
brown 1
red 2
orange 3
yellow 4
green 5
blue 6
violet 7
gray 8
white 9
fourth band:
gold 5%
silver 10%
no band 20%
 

davenn

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Sep 5, 2009
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What formula is used to read these values

the first 2 images show old carbon resistors

image 1) - 68 Ohm 10% tol.
image 2) - 1000 Ohms ( 1k Ohm) 10% tol.


the 3rd image shows 2 carbon resistors and a disc ceramic capacitor

top resistor 4.7 M Ohms ( 4,700,000 Ohms )
then 0.005uF disc ceramic cap
lower resistor appears to be a 150,000 Ohm (150k Ohm) 10 % tol but there is also a red band out to the right
not sure what that is indicating


Dave
 
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KJ6EAD

Aug 13, 2011
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That last band is either a reliability/failure rating or a temperature rating. I can't find the reference right now.
 

snapman

Apr 2, 2013
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Thank you.

The item in my first posting is a

Sprague Bumble Bee Capacitor

I haven't had chance to check color values yet, but I am positive that one is a cap.

o, and I just bought the PACKARD-BELL 531 RADIO PHOTOFACT
Contains schematic and full parts list. I found one on net, but bad quality image. This is not a copy so should be able to read it

Sorry for cap lletters, was cut n paist.
Again thank you to everybody and have a Merry Christmas and a Happy New Year. got about an hour before dinner I guess I'll start to write down values of components.
 
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