[R-390] Vaguely on topic

Robert Simpson [email protected]
Thu, 09 Jan 2003 23:43:02 -0800


Dave

Interesting question.  One horsepower equals approx 745 watts and I have
seen test rigs (for endurance testing) where a human riding a bicycle-type
generator/alternator (don't remember which) was able to run a small
television set.  I would estimate that output to be around 100 to 150 watts
- or around 1/6 horsepower.  The subject was only able to maintain
television reception for a relatively short period of time before becoming
too fatigued (a matter of only a few minutes).  Don't remember what my
R390A draws, but believe it is more than 150 watts - too lazy to disconnect
and remove from rack :-))  I believe the R390 draws more current than a R390A.

Another problem would be the varying voltage depending upon the speed of
the bicycle rider which would require a voltage regulation system.  

Sounds like it might be an interesting experiment.

Bob

At 09:49 PM 1/9/03 -0500, [email protected] wrote:
>Fellow r-390(A) drivers,
>I remember years ago seeing advertised in various radio periodicals a human 
>powered radio set. Any of you older than me oldtimers have any data on
them ? 
>Anyone out there ever pedaled one while in military service ? Did the 
>generator set put out AC or DC ? 
>Would it be theoritically possible to power an R-390 with such a generator ?
>
>Regards,
>Dave
>
>
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