The cost of the
smallest outfit of the kind is about $3 for the water motor and $4
for the dynamo. This dynamo has an output of 12 watts, and will
produce from 18 to 25 cp., according to the water pressure
obtainable. It is advisable to install the outfit in the basement,
where the water pressure is the greatest, and then lead No. 18 B &
S. double insulated wire wherever needed. The dynamo can also be
used as a motor,
[Illustration: Fig. 3]
and is wound for any voltage up to ten. The winding should
correspond to the voltage of the lamps which you desire to run.
However, if wound for 6 volts, one could run parallel series of
two 3-volt, 1-cp. lamps; making, as in Fig. 3, 11 series, or 22
lights. If wound for 10 volts, it would give 1-1/4 amperes and run
four 6-cp. lamps. Thus, it will be seen that any candle power lamp
can be operated by putting the proper number of lights in each
series, and running the series in parallel. So, to secure light by
this method, we simply turn on the water, and the water
consumption is not so great as might be imagined.
For the party who has electric light in his house there is still
an easier solution for the problem of power.
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