yes, I suggest you increase the resistor to well over 22r.I have just been doing a bit of experimenting on this very subject. .................................
Well, the result is the amp now works happily with a 3A fast fuse in the plug - no blown fuses yet, and the audible buzz seems to have gone. No speaker thump either. The resistor doesn't get at all warm and I think the bi-metallic switch is overkill. Should I increase the resistor to 47R?
I don't know if T700mA is available, but I know you can buy T600mA, T800mA and T1A fuses.I have a toroid with 120VA, so an T 0.7A will fit?
A soft-start rated at 10A for a 120VA transformer will not be very soft, as the resistor will be too small in value. It will make very little difference.