Phil Allison wrote:
"Sylvia Else"


As for whether I could substitute a 6.8, maybe I could, though I'd have
trouble getting one that has a 350 volt rating.


** Huh ??????????

No need for that whatsoever.

In operation, the resistor is not subjected to more than a few volts.

As I commented earlier, if the switching transistor fails by shorting
out, then the resistor will blow. After it's blown it'll have 340V
across it. There's not much point in having a fuisible there if it
remains conductive through insulation break down after it has fused.

Sylvia.