[Arny Krueger]

"Patrick Turner" wrote in message

Ian Bell wrote:

snip,


If you are worried by magnetically induced noise in WW
R, then use a pair of equal value and same brand with
one reverse connected and close to the other. Thus the
magnetic noise of one cancels that in the other.


Interesting idea. Unfortunately it means finding WW
resistors of double the value and it's hard enough
finding ones of the original value.

The circuit working should not be that critical.

You may have 4 x 5W stacked together, with short leads,
correctly phased to minimise hum....

Using 5 x 220k parallelled metal films each of 1/2 a watt
gives you 44k, 5W, and maybe excess noise is lower,
but Johnson is the same as a 44k single R.....

Interesting how 5 x 1/2 = 5.

I keep getting 5 x 1/2 = 2.5

What is wrong with me?