I have been selling these rectifiers on ebay for 19 years. They will fit most British bikes with single phase alternator. Positive or negative earth and 6 or 12 volt. They are much more efficient than the original plate type and very easy to fit. They will barely get warm in use and last for many years. Corrosion resistant plating and rain resistant. Usually the existing spade terminals on the wiring loom just go onto three of the new rectifier terminals. You then need a short wire from one spade to the frame. 
A drawing will be included.
I post these every day 7 days a week on the same day as purchase by first class post in a padded bag and the spade terminals are protected by rigid foam to avoid damage in the post.
These are the best rectifiers you can buy for a classic bike and not to be confused with others on sale showing no part numbers which are generally very cheap components.
I sell to many motorcycle sellers and restorers who buy again knowing the item will arrive as fast as Royal Mail can deliver it.
If looking for these rectifiers, just check you are not paying extra for post. I charge the actual postage cost.
I will not run out of stock as i buy in very large boxes.
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