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In documentation you'll see resistance labels like this: 470R.

What the heck??

Often, resistances less than 1K ohms are written with this International designation. Such as 1R, 470R. Resistances less than 1000 ohms have 'R' to indicate the position of the decimal point (radix point*). For example:

470R = 470 ohms
1R0 = 1.0 ohms
0R22 = 0.22 ohms


*Radix point
In mathematics, a radix point is the symbol used in numerical representations to separate the integer part of a number (to the left of the radix point) from its fractional part (to the right of the radix point). In base 10 notation, the radix point is more commonly called the decimal point.
- Wikipedia

_________________
Stephen
Web: www.trinityamps.com. Facebook: facebook.com/trinityamps. Twitter: @trinityamps

Neat!

You know how people write 1K2 which is just 1.2K. Apparently that is just because as schematics get photo copied over time they lose their clarity so the big K is clearer than a little dot. I always that the R was used in a similar way cause the omega symbol could start to look like a zero or o over time.

Anyways...

Thank you I actually remembered the Radix point and base 10 (Even on my meter, I remembered)
Hopefully it lasts for a while