Audiovalve BALDUR 300 Talimatlar - Sayfa 11

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BALDUR 300

triode power amplifier

DO NOT FIT A FUSE WITH HIGHER RATING.

AUTOMATIC BIAS CONTROL FUNCTION ( ABR )

Each from the 10 * 6AS7G ( 6H13C ) power tube is controlled by an ABR

for each system in the tube. The correct function of the ABR is shown by

three LED`s at each side, next to the power tube.

When the amplifier is operating, no LED is shinning.

In case that any of the power tubes is faulty one of the LED`s,

which are at the right and left side of the power tubes ,

immidiatly indicated.

If this happens, you have to change the power tube of this place.

After changing the power tube, the LED must be off again.

If still any of the LED`s is on, please contact your AudioValve

dealer.

Please notice:

Please take notice when switching on the amp , the

STAND BY SWITCH has to be in operate ( rocker switch up) !

All handling at the open amplifier has to be done

when the main power plug is disconnected .

In STAND BY MODE, two of the LED`s of the ABR of each

power tube is shinning.

When the amplifier is driven in a very high level output,

the ABRs are regulating the power tubes and there is a slighty

shinning of the two LEDs together.