I bypassed the drop down resistor on the FR+ and
fed the fan directly from my small variac. As Ben
said, about 20 - 21 volts was enough to move 4
ounces of beans. The roaster didn't complain, and
the cooldown only takes 2 minutes instead of 3.
Managed only 2 good roasts out of 5 on my first
try, since the roaster is very different now; but
I'm sure I'll be back to consistent quality in a
few more tries.
I will go from 1.5 to 3 inches on my extender,
since the beans are pushing against the lid in the
current configuration. I hope that will reduce the
tendency of the beans to go into thermal runaway
(I'm not saying the e-word).
20 ounces roasted in an hour's session is nice.
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