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Ohm Bands

Violet Grey Silver Gold — 0.78 Ω

Read left to right, starting from the end where the bands are grouped. The gold band is the tolerance and always sits alone at the far end.

78×0.01±5%
Violet7Grey8Silver×0.01Gold±5%

Value

0.78 Ω

Range at ±5%

0.741 Ω – 0.819 Ω

Standard value

Non-standard

No E24 part carries this value — check you are reading from the right end.


What each band says

BandColourMeaning
1Violet1st digit — 7
2Grey2nd digit — 8
3SilverMultiplier — ×0.01
4GoldTolerance — ±5%

In a circuit

Across 5 V

6.41 A · 32.1 W · part

Across 12 V

15.4 A · 185 W · part

Surface-mount marking for the same value: R78.

If you misread one band

Brown and red, or orange and red, are easy to confuse under a desk lamp. These are the codes one band away from this one.