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Speaker overload (tweeter) protection using bulbs (repost)

Discussion in 'Electronic Repair' started by Eeyore, Nov 14, 2008.

  1. Eeyore

    Eeyore Guest

    Thank you for the endorsement George. I recall we got on fine when I first
    joined this group. For fear of provoking any further discord I'll avoid
    mentioning the name of a certain person who helped upset that.

    I was serious about you asking Jim Savery about the solder used by Behringer
    for N.A. destined products btw. If you're too busy, could you remind me of his
    contact details, email whatever and I'll enquire myself ?

    Graham
     
  2. Eeyore

    Eeyore Guest

    It'll be virtually a square wave with almost twice the sinewave power of the
    amp but not 'DC' though.

    Graham
     
  3. Eeyore

    Eeyore Guest

    Depends what you call saturate. It'll clip even if anti-saturation measures such
    as a Baker Clamp are used.

    Yeah. Might conceivably be a bit asymettrical but probably not to a large
    degree.

    Base charge storage. That's what the Baker Clamp stops.

    Around twice.

    Graham
     
  4. liquidator

    liquidator Guest

    Can I get an Amen?

    Been bitching at Graham to stop this shit for probably a year.
     
  5. liquidator

    liquidator Guest


    Most I ever counted was a festival system, 72 Phase 400's in racks. Not mine
    of course, we had two systems, both together were less than half that.

    I think we owned about 36, generally 6 on the bench, 6 as spares, 24 in
    actual use.

    But they were cheaper, lighter, and sounded better than Crowns.
     
  6. liquidator

    liquidator Guest


    Yeah, it's been hashed a dozen times, clipping ain't DC, and people with
    high levels of knowledge don't say it is.

    Just salesmen and and fader jocks. Not real engineers.

    In practice, the severely clipped amp won't do a perfect square wave, it
    will sag. so the "virtual DC" argument falls flat on it's face...most supply
    rails do not have enough storage to sustain a full square wave...some of the
    real heavy old iron may.

    But I don't talk about old amps to make a point, nobody uses them any more.
     
  7. liquidator

    liquidator Guest


    Arny and I agree?

    Chicken Little was right...

    I argue how close it is to virtual DC though.

    I certainly don't feel it fits the definition.
     
  8. liquidator

    liquidator Guest


    Hey, you and I still have our words...but wouldn't it be friggin' boring if
    everybody in th world agree on vanilla ice cream?

    But different folks can find common ground. I got no quarrel with guys who
    prefer blondes for instance...leaves more redheads for me...
     
  9. liquidator

    liquidator Guest

    Used to be a stock scene in old Science fiction movies...all the meters go
    into overload...someone yells out "Turn back you fool!"

    Then the Earth explodes/a dimensional gate opens/a guy is mutated into a
    nasty creature...(insert other options here).
     
  10. Eeyore

    Eeyore Guest

    I'm sure he understood it but King George won't like it one bit. He's a wee bit
    temperamental, you know.

    He also claims that MDF cabinets are crap despite buying them himself for his 'B
    rigs'.

    Graham
     
  11. Eeyore

    Eeyore Guest

    They should get engaged. ;~)

    Graham
     
  12. Eeyore

    Eeyore Guest

    It's been an interesting combination and as I've said, completely on topic for
    all. It's given me a chuckle too to see what the techs think of what Assilon
    calls 'fader jockeys'. And then there's Jamie. He's in his own league.

    Graham
     
  13. Eeyore

    Eeyore Guest

    Do you fix your own gear Your Highness ?

    Graham
     
  14. Eeyore

    Eeyore Guest

    I ONLY crosspost when it's on topic for all the groups as per netiquette
    standards. Which it clearly was here.

    In fact I normally trim groups more than anything, except you don't see that
    of course.

    Graham
     
  15. Eeyore

    Eeyore Guest

    Crowns of that era always sounded gritty to me and had no better heatsinks
    either. Never bothered with them then or since. Well especially as I 'roll my
    own' these days !

    Several UK companies like RSD/Studiomaster and Turner realised the heatsinking
    problem and dealt with it. We had a Turner in my rig for a while. Sounded fine
    too. It was driving mids (Philishave lookalikes - home made).

    Graham
     
  16. Eeyore

    Eeyore Guest

    Can't afford the fuel to carry them !

    Graham
     
  17. Eeyore

    Eeyore Guest

    It's AC not DC ! Damn, they were on the week before last. 8 Nov.
    http://thehorn.co.uk/ click on "What's On" then full listings. Not bad either.
    Oh and I could tell you a tale about that evening too ....!

    Graham
     
  18. Eeyore

    Eeyore Guest

    Totally agree. Had a chat about that on Sat in fact.

    Don't you DARE get near MY redheads ! Actually haven't seen many in ages but I
    can spot them at a fair distance.

    Anna was so stunning that - this has never happened before to me or since - my
    legs would physically go weak.

    I gave her a life home once (with her almost as perfect redhead friend Fiona).
    As she left, she gave me a kiss on the neck that felt like sucking and blowing
    at the same time. How DO they do it ?

    Graham
     
  19. Eeyore

    Eeyore Guest

    I caught the tail end of Alien vs Predator the other night. Boring really.

    But then there's 'The Forbidden Planet'. It can still make my flesh tingle.

    Graham
     
  20. Eeyore

    Eeyore Guest

    Well fancy that ! Nat Semi do make some of the best integrated audio amps.
    See Gainclone for example. Although this is only a driver.

    Graham
     
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