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Amplifier lamp exposure circuit

2016-08-14 04:34  
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Amplifier lamp exposure circuit
Potentiometer R1 is used to adjust automatic timing exposure of amplifier lamp, to this amplifier lamp which has 500W maximum power, the adjustable automatic timing exposure is about 0.01~60.00s. If C1 adopts high quality electrolytic capacitor, then the accuracy of repetition timing is higher than 2%. In figure, K1 is 24V AC relay, T1 is filament transformer with center tapped, and it has 12.6V secondary voltage.