Method of setting emission animation to be a colour value instead of white

[r4ytrace1 (r4ytrace)]

Hi,

I am trying to create an animated neon sign shader:

basically I want it to glow as ‘red’(#cc0000) and fade back to close to black.

at the moment, all I can achieve is going from White as emissive glow and back to red as base colour.

Is there a type of parameter I can pass between the sine and emissive color input, (i.e. some form of forcing it be ‘red’)

If i could do this, I could maybe set the base colour to be almost black and then it would pulse between the two.

Any help is very much appreciated

[r4ytrace1 (r4ytrace)]

is there a simpler way to do this - or is it not possible to make something animate a coloured emission?