11-01-2020, 09:07 PM
(This post was last modified: 11-01-2020, 09:11 PM by Mike Watterson.)
(10-01-2020, 02:17 PM)ppppenguin Wrote: Like Pamphonica, I don't understand how ferrites can affect DC.It's a 20V PWM supply for the Vh. Not DC!
The mark space ratio and the frequency means that the real average heat on the filament or heater is progressively less than desired as the Vh is lower and the number of beads / wiring distance is higher. A SINGLE socket with plug in adaptors is the best solution for a PWM heater supply.
I've a LARGE panel.
I've added an external 0.6V to 3V supply and switch as 5V is a realistic minimum anyway even without extra series inductance.
Ronald himself points out that larger panels with lots of beads won't do lower voltages accurately further away from the patch selector.
The 6.3V setting on my Noval socket is similar characteristics to about 5V from a bench supply.
See if you can name all the bases?
