......
>Is it better to leave an amp on, or turn it off if its not going to
>be in use for a couple hours???
>
>I usually leave mine on but have been told it weakens the filaments. I am
>specifically referring to the Drake L4-b and TenTec Centurion both with
>3-500s.
>
>73 Jeff K4JNY ex KQ4HC
>jnyeager@southern.edu
It depends on how much voltage one measures across the filament during
standby. Information on useful emission life vs. filament voltage can be
found in the January, 1994 *QST* article "The Nearly Perfect Amplifier*.
Rich---
R. L. Measures, 805-386-3734, AG6K
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