Numbers sequence

[midrange]

I have noticed that the commonly available capacitors, and resistors have the same sequence of values

1.0, 1.5, 2.2, 3.3, 3.7, 4.7, 5.6, 6.8, 8.2

Is there a reason for these values?

 

[rfbrw]

E series of preferred numbers - Wikipedia

 

[system7]

Whoah there. Schoolboy mistake...

1.0, 1.5, 2.2, 3.3, 3.7, 4.7, 5.6, 6.8, 8.2

3.9uF surely, not 3.7uF...

 

[Capt Grogg]

add 1.2,1.8 ,2.7 and 9.1

 

[system7]

I did pick that one up myself.

Strangely Wilmslow Audio have an entirely different scheme on Coils:

Air Cored Inductors

Prefer whole values rather than Logarithmic.

 

[midrange]

Whoah there. Schoolboy mistake...



3.9uF surely, not 3.7uF...

You should have seen the errors I :made when I was a schoolboy. rolleyes: