Ian Bell wrote:

Eeyore wrote:
Ian Bell wrote:

So apart from the possible variation of gm with anode
current, the noise added by a triode seems to to fairly independent of
anode current. This seems strange to me since shot noise is caused by
random fluctuations in anode current so I would expect higher anode
currents to produce higher noise.

Not because of the shot effect for sure.

A higher anode current means the relative size of the unit electronic
charge is actually *smaller* in influence.

Er, surely it means there are more of them to create noise?

You've misunderstood how shot noise is generated.

Graham