Thanks for the source, Jeff. Like Rene, I've never seen nor heard of a solid brass Edison mandrel, although I've only been collecting for 45 years!SonnyPhono wrote: As for the solid brass mandrel, I found this information on the Phono-L message board. Someone else was asking the same question regarding mandrel variations a few years ago and the following was written in a response:
http://www.intellitechcomputing.com/pip ... 13255.html
This solid mandrel information may not be accurate judging by the last comment in the response. I must have missed the part about the information possibly being only 50% correct!

George P.