From: bill.sloman@ieee.org   
      
   On 1/01/2026 12:39 am, Liz Tuddenham wrote:   
   > Bill Sloman  wrote:   
   >   
   >> On 31/12/2025 8:31 pm, Liz Tuddenham wrote:   
   >>> Bill Sloman  wrote:   
   >>> [...]   
   >>>   
   >>>> Driven shields have been around forever.   
   >>>   
   >>> Since the mid 1930s, invented by Blumlein.   
   >>   
   >> I worked at EMI Central Research for a couple of years (1976-1979), but   
   >> I'd heard of the Blumlein bridge even before that.   
   >>   
   >> https://en.wikipedia.org/wiki/Alan_Blumlein   
   >>   
   >> He died at age 38, and had his name on 128 patents. The IET has   
   >> published a biography, but it doesn't do him justice.   
   >>   
   >> "The Life and Times of A.D. Blumlein" by Russel Burns ISBN 0 85296 773 X   
   >> and 978-0-85296-773-7   
   >   
   > That is an excellent book - but be aware there is another book with a   
   > very similar title which is a complete load of rubbish.   
   >   
   > I was priviledged to have met Alan Blumlein's son, Simon, on several   
   > occasions and chatted to him about his father.  Simon died about a year   
   > ago; he was a lovely character with a similar sense of humour to his   
   > dad.   
      
   I envy you the personal acquaintance. I wasn't all that impressed by the   
   book. I don't think the author knew much about the electronics that   
   Blumlein worked on (few people do - he worked in a lot of different   
   areas) and it struck me as rather superficial in consequence.   
      
   --   
   Bill Sloman, Sydney   
      
   --- SoupGate-DOS v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)