"Andre Jute" wrote:
Perhaps hub dynamos have been coming in for more than just 3-4 years;

Clive George wrote:
Fitted my first one in 1997, so over 10 years ago.

A Muzi
Yes, well over ten. My 1953 GH-6 Dynohub still works fine (if you prefer
a dull yellow Lucas-like glow).
The Sanyo Dynohubs on staff from early 1980s are quite bright. Newish
models are both bright and about 25% cheaper but that's not news any longer.

wrote:
Humber advertised its "amazing patent Dynohub Lighting unit" with the
claim that it was "frictionless" in 1938:

http://www.classicrendezvous.com/Bri...ber_ad1938.htm

Sheldon wrote about the Sturmey Archer Dynohub and included a 1952 ad:
http://www.sheldonbrown.com/dynohubs.html

There, the claim was modified to "mechanically frictionless."

S-A fans can read the short 50th anniversary Sturmey-Archer history
pamphlet at Sheldon's site by going here and clicking on next:
http://sheldonbrown.com/sa50/index.html

Caution: giant butterfly axle nuts and piratical eye-patches.

These amazing Sturmey-Archer mileage claims raised my eyebrows:

"In 1939 Tommy Godwin, using a Sturmey~Archer hub, broke the year's
mileage record with the amazing total of 75,065 miles. Not content
with this he went on to cover 100,000 miles in 499 days."
http://www.sheldonbrown.com/org/sa50/page7.html

That's 205.65 miles _every_ day for a year in 1939, and 200.40 miles
per day in 499 days.

Some details about Godwin's amazing mileage appear he

http://www.phased.co.uk/index.php?op...=11&Itemi d=7

But my eyebrows disappear skyward again when I read that he maintained
a "strict vegetarian diet" throughout his feat and then "spent weeks
learning how to walk again" after he stopped.

Still, 200 miles a day for all but 8 days of a year is possible, so my
eyebrows have returned to a normal level:
http://miles4melanoma.com/hoffman.html

Freddie Hoffman never claimed to need to learn to walk again and the
noticeable spare tire mentioned in the article suggests a carnivorous
diet.

There was a rural electrical kit in the 30s with the SA early (12v, 8v)
Dynohubs, windmill to drive it through batteries and light bulbs for the
farmhouse (or milking shed). Probably not as bright as a Coleman lantern
I assume ...
--
Andrew Muzi
www.yellowjersey.org
Open every day since 1 April, 1971