Those that have a radio background will point out that you definitely need a load on a transmitter otherwise you'll risk blowing the output stages. Being a microwave oven is effectively a self-contained microwave transmitter, it makes sense you could do damage with a light load.
The Frigidaire and Whirlpool warnings are especially interesting as Amana actually PROMOTED popping popcorn in the Radarange. Anyone else remember the yellow-cone poppers that made just awful styrofoam flavored popcorn? Made exclusively for the Radarange by Amana...I'm sure most got used about twice.
While I haven't heard of an RR failure due to a light popcorn load, I have heard of the concentrated heat in the kernels causing the glass tray to crack. That's actually more common than you'd think. -Cory
The Frigidaire and Whirlpool warnings are especially interesting as Amana actually PROMOTED popping popcorn in the Radarange. Anyone else remember the yellow-cone poppers that made just awful styrofoam flavored popcorn? Made exclusively for the Radarange by Amana...I'm sure most got used about twice.
While I haven't heard of an RR failure due to a light popcorn load, I have heard of the concentrated heat in the kernels causing the glass tray to crack. That's actually more common than you'd think. -Cory