[AMPS] TL-922 Filament Transformer Protection

[Ian White, G3SEK]

Jon Ogden wrote:
>I sell resistors for a living.  High power resistors at that.  RESISTOR 
>DISSIPATION DROPS AS TEMPERATURE INCREASES!!!  That is a fact.  There is a 
>temperature at which a resistors dissipation is ZERO. 

There's one little word missing there: you mean dissipation RATING.

The resistor's dissipation limit is set by the maximum working
temperature, so the dissipation rating - the dissipation that is
available to be used - decreases with temperature.

If the resistor is already at its maximum working temperature, its
dissipation RATING is zero.

Maybe that little extra word doesn't matter, a lot of the time, but you
can't criticize Rich for using "dissipation" in its strictly correct
sense when you're not.

73 from Ian G3SEK          Editor, 'The VHF/UHF DX Book'
                          'In Practice' columnist for RadCom (RSGB)
                           http://www.ifwtech.demon.co.uk/g3sek

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