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Old 01-11-22, 07:24 PM
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Originally Posted by steelbikeguy View Post
Isn't the dynamo output rated at 1.8 watts or something?
6V @ 2W until the early 1970s, 1.8W afterwards. There are questions as to whether this was an actual down-rating or just a change in test method.

Sturmey-Archer developed an updated and improved 3W Dynohub in the late 70s/early 80s, called the XAG. This was shown at cycle trade shows in 1982 to positive reviews but - if you know anything about the history of Sturmey, you know where this is headed - they never put it in production!

Fun fact: the GH6 was introduced in 1946, replacing pre-war 12V and 8V models. Despite post-war shortages and supply chain disruptions, by early 1951 the factory was making 12,000 a week!

Last edited by tcs; 01-14-22 at 12:21 PM.
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