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   sci.electronics.design      Electronic circuit design      143,326 messages   

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   Message 141,773 of 143,326   
   john larkin to Liz Tuddenham   
   Re: PWM shunt regulator   
   21 Dec 25 11:37:19   
   
   From: jl@glen--canyon.com   
      
   On Sun, 21 Dec 2025 16:58:41 +0000, liz@poppyrecords.invalid.invalid   
   (Liz Tuddenham) wrote:   
      
   >john larkin  wrote:   
   >   
   >> On Sun, 21 Dec 2025 15:40:21 +0000, Jeff Layman    
   >> wrote:   
   >>   
   >> >On 21/12/2025 05:08, Bill Sloman wrote:   
   >> >   
   >> >> This is roughly equivalent to insisting that petrol-engined car won't   
   >> >> catch fire if you shoot a bullet into the petrol tank.   
   >> >   
   >> >It won't catch fire. You can search for this yourself:   
   >> >   
   >> >bullet gasoline tank fire   
   >> >   
   >> >It's a myth, mainly as a result of many Hollywood movies showing cars   
   >> >exploding from a single bullet to the tank. Even multiple bullets fired   
   >> >into a tank won't cause the fuel to ignite. You need an incendiary   
   >> >bullet, and even then you might require more than one.   
   >>   
   >> We (the good guys) got a great advantage in WWII, with planes that had   
   >> self-sealing gas tanks.   
   >   
   >I think you will find the Germans had them before WWII broke out but we   
   >didn't develop them until later.  Apparently the UK research was bogged   
   >down by mission drift or 'specification-runaway'.   
      
   Old cars had gas gauges that used a float and a wirewould pot, inside   
   the tank. It didn't blow up because the mix in the tank wasn't   
   flammible.   
      
      
   John Larkin   
   Highland Tech Glen Canyon Design Center   
   Lunatic Fringe Electronics   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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