XPost: 24hoursupport.helpdesk   
   From: ianREMOVETHISjackson@g3ohx.demon.co.uk   
      
   In message , Any one   
   writes   
   >Ian Jackson wrote on 29-Jul-09 14:40 :   
   >> In message , rf   
   >> writes   
   >>> Roger Dewhurst wrote:   
   >>>>> You can get simple to use regulator chips that drop the voltage   
   >>>>> down, you only need a couple of components to make a working voltage   
   >>>>> regulator. Ask on News:sci.electronics.basic - the folk on there are   
   >>>>> usually very helpful and should explain all you need.   
   >>>>>   
   >>>>>   
   >>>> Why not just drop the voltage through a few diodes?  Very simple. Very   
   >>>> cheap.   
   >>>   
   >>> A *few* diodes at a couple of ten cents per each. A single 7809 for less   
   >>> that a $.   
   >>>   
   >> More like "a *few* diodes at a couple of cents per each".   
   >>  3V to drop = 5 diodes @ 0.6V per diode. No other circuitry required.   
   >   
   >BWHAHAHAHAHAHAHAHA!!!! *cough* *wheeze* *wheeze*   
   >   
   >-if- junction temperature remains constant.   
   >-if- load current remains constant.   
   >-if- each selected diode returns precisely 0.6v @ 'load current'.   
   >   
   >> More than good enough for the job.   
   >   
   >AHAHAHAHAHAHAHA!!!   
   >   
   >-if- source voltage remains constant   
   >-if- there aren't any ICs that could suffer over-voltage damage   
   >-if- you're as cheap and gullible as a Republicunt   
   >   
   >lemme guess -- you're a close relative of teh chucktard?   
      
   Lemme guess....   
   You have a degree in Electrical Over-Engineering?   
   --   
   Ian   
      
   --- SoupGate-Win32 v1.05   
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