I suppose you could put a NE-2 bulb and a resistor in parallel with the fuse. Just not when the fuse is protecting your house wiring. Then if the amp tries to draw current, the bulb will glow when the fuse is open.

73 Bill AE6JV

On 7/15/18 at 10:49 AM, [email protected] (Bob McGraw K4TAX) wrote:

Hence the reason for 3AC fuses. They have a ceramic body and don't explode. Of course the only way to tell if they are open is to measure them.

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