Re: pull-mid resistors on Smart sockets
- There is the possibility that pull-mids could help, because even though a fade is created by switching rapidly between two digit cathodes, each individual cathode is being switched between 0V and HV+ during that time. A pull mid will reduce the total switched potential by holding the cathode at a lower off state voltage than if no pull mid were used.
It is certainly worth trying as an option.
The noise,as far as I can tell, is a result of the small amount of movement which each cathode exhibits, when it is switched, as a result of electrostatic forces. The cathodes are not fixed rigidly, or clamped, to their supports and the sml amoint of fitting tolerance allows them to move slightly.
Has any tried this and gotten any results? I could cage the tubes in plastic but would prefer not to.