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That's exactly what he's saying. He mentioned it several times in discussing the initial development and uses of 531 tube. He didn't say if it was gas torch or electric welded. I've always assumed it was gas torch, similar to early aircraft practice in the US with 4130 tube.The book is definitely worth reading. All sorts of first hand info in it. "Ken Sprayson The Frame Man," ISBN 978-0-9564975-6-7, published by Panther Publishing Ltd. in 2012.Ken
That's exactly what he's saying. He mentioned it several times in discussing the initial development and uses of 531 tube. He didn't say if it was gas torch or electric welded. I've always assumed it was gas torch, similar to early aircraft practice in the US with 4130 tube.
The book is definitely worth reading. All sorts of first hand info in it. "Ken Sprayson The Frame Man," ISBN 978-0-9564975-6-7, published by Panther Publishing Ltd. in 2012.
Ken
