[Stoves] Hand Crank Dynamo for Fanned Stove?

[Paul S. Anderson]

Stovers,

>> Jeff Davis wrote:

>>> Found an interesting product at Harbor Freight. It's a hand crank LED
>>> lantern.
>>> Crank for 60 seconds and get 20 minutes of light.

For the blower in my TLUD in India, I need 300 milliamps at 12 volts DC 
maximum
power, and I "turn it down" with a PWM (pulse width modulator) that has a 500
milliamps maximum.

Question:  How many minutes of 300 milliamps 12 volt power can I get from
existing hand-crank devices?

I am also considering this concerning short-time blower assistance to a mainly
natural draft TLUD.

Tom Reed wrote:

>> What is wrong with the fan-battery-solar charger that everyone seems
>> keen on replacing with more expensive alternatives?

I want ALL options to be considered and available to each niche 
population. Consider cave explorers without sunlight.  Or the dark 
season in polar areas. Or damaged solar equipment so need for a backup. 
  Or late-night cooking after
the battery has been drained by a short or something.  Or whatever.

So, I am still curious about the power output of the hand-crank devices.

Paul


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