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History of radar

Discussion in 'Electronic Design' started by martin griffith, Sep 25, 2005.

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  1. Just found this

    might be interesting for some of the younger inhabitants here
    I liked

    "A engineer named Richard Roberts began by performing a series of
    increasingly rigorous experiments to show that a vacuum tube could
    survive thousands of gees of acceleration, as would be required if an
    electronic circuit were to be shot out of a gun."


  2. So what is wrong with Greg as a name?

    but from the index page
    Greg Goebel (full name Gregory Vaughn Goebel)
    friends call me "Mister G"
    Born 1953 in Spokane, state of Washington (NOT Washington DC), NW
    Now living in Loveland, Colorado, north of Denver

  3. I read in that martin griffith
    <>) about 'History of radar',
    Yes, well, note the smiley. Clearly, he doesn't take any notice of the
  4. I wonder how many gees a usenet troll could stand if it were fired
    out of the same type of gun? ;-)
  5. sorry John, didnt notice that smiley!

  6. Hey, a troll is just a bunch of electrons, isnt it? how many angels
    can you stand on a head of a pin?

  7. I read in that martin griffith
    <>) about 'History of radar',
    I suspect the story has a number of holes in it. A lot of work was done
    in the UK on proximity fuses at the defence establishment at Fort
    Halstead. I think that a lot of that is still even now classified. I
    knew a guy who worked there during WW II up to about 20 years ago when
    he popped his clogs, and he certainly wouldn't talk about what was done.
    There was input on subminiature valves/tubes from specialist UK
    manufacturer Hivac, and from Mullard, the UK arm of Philips.
  8. John Larkin

    John Larkin Guest

    Read Baldwin, "The Deadly Fuze".

  9. Angels? I can barely see to work with SMD anymore. ;-)
  10. Robert Baer

    Robert Baer Guest

    Angels will *not* stand for a troll; they do not want to even be
    associated with trolls!
  11. Robert Baer

    Robert Baer Guest

    The nuvistor was made for use in space...small, rugged.
  12. Robert Baer

    Robert Baer Guest

    Yup! SMDs are getting smaller than the proverbial pinhead.
  13. I read in that Robert Baer
    Around 25 years later.
  14. Arthur C. Clarke mentions in the preface to another author's SF
    book that he had often wondered what crackpot invented the radar
    proximity fuzes installed in artillery shells. The other author,
    American George O. Smith, was involved in that design. I assume they
    were friends.

    I'm amazed what the Brits accomplished with so little men, time,
    and materials to work with.
    Or was hastily reclassified when the Soviets were found to use
    toob radars in their Cold War state of the art fighter planes...
    those holes may never be publicly filled in.
    There're lots of old(er than me) farts around here; I think I'll
    start bringing the subject up...

    Mark L. Fergerson
  15. Pooh Bear

    Pooh Bear Guest

    War clearly focuses the mind rather well.

    I'm staggered frankly that Bowen's team could even consider airborne radar
    given the technology of the day.

    They got something up and running and the rest is history as they say.

  16. N Cook

    N Cook Guest

    An uncle of mine died earlier this year.
    It came out that he was involved with the developement/deployment of a
    man-portable radar set-up towards the end of 39-45 war.
    Would anyone know any more about this mission or where to research it with
    such scant starting info ?
    Undercover and at night mission landing on a small mountainous island off
    Sicily or South Italy having come over from N Africa as part of preliminary
    to the invasion of Italy.
    Mission was to set up this radar gear on top of the mountain to monitor
    enemy's movements and radio back the info. The gear was only just portable
    bearing in mind it had to be dismantlable and man ported up a mountain at
    night. The only trouble, because of need-to-know basis, no one in their
    group had actually been informed what channels/times were to be used for
    radioing back the intelligence. Then it transpired they were totally
    forgotten about , stuck on this island for some months.
  17. It's reasonably possible that the plane he was dropped from
    was piloted by my mother's uncle or one of his close colleagues.
    He's just written a book about his war experience. He did a lot
    of difficult insertions in the Mediterranean around that time.
    Email me and I'll put you in email contact with him.

    Clifford Heath.
  18. Barry Lennox

    Barry Lennox Guest

    Some of the info on this website is supported by the "History of
    Engineering and Science in the Bell System" in the Vol entitled
    "National Service in War and Peace"

    Barry Lennox
  19. Bob Monsen

    Bob Monsen Guest

    I just watched a documentary the other night on the proximity fuze.

    Sounds like this weapon shortened WWII considerably. They used tiny tubes
    that were originally designed for hearing aids to build the devices, which
    would arm themselves upon being fired (maybe 100 feet from the gun) and
    explode when near an enemy aircraft. This magnified the effectiveness of
    guns to take down planes by about 10x, saving many ships. They were
    deployed in England and Europe as well, where they were used in
    fragmentation devices, which would be fired in sequence from many guns so
    as to explode over a huge area simultaneously. The film of hundreds of
    them exploding 100 feet above the ground over an area of about a square
    mile was impressive.

    Bob Monsen

    When earlier, new functions were invented, the purpose was to apply them.
    Today, on the contrary, one constructs functions to contradict the
    conclusions of our predecessors and one will never be able to apply them
    for any other purpose.
    - Poincare
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