3rd Power BRITISH DREAM 112 HEAD Manual del usuario - Página 13

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Operational Notes:

TUBE CHART

Tube Layout and Requirements:

V1: JJ EF806 (Preamp Pentode)

V2 and V3: JJ 12AX7 (Preamp)

V4: Sovtek 12AX7LPS (Phase Inverter)

V4 and V5: Mullard "Reissue" EL34 output tubes

Your BRITISH DREAM comes from the factory biased for EL34 tubes.

Bias adjustments are not intended to be user-serviceable. Attempting to

adjust the bias yourself will expose you to very dangerous high-voltage

electricity that can kill you. Special test equipment and knowledge of

amp circuits and tubes are required to perform this function. DO NOT

ATTEMPT TO DO THIS YOURSELF.

WE RECOMMEND TAKING YOUR AMPLIFIER TO A QUALI-

FIED TECHNICIAN FOR SERVICING YOUR TUBES. Make certain

the amplifier is turned off and has been allowed ample time to cool down.

Be very careful when you remove the tubes as they might still be very

hot! Do not touch tube sockets with fingers! Even after turning your amp

off and unplugging it from the power outlet there could be enough volt-

age stored in the capacitors to give you a lethal electrical shock.

WARNING:

1) Do not remove the back panel.

2) Do not attempt to check or replace tubes yourself. Refer to an author-

ized service center.

3) Never touch the tubes while the amplifier is turned on or has recently

been turned ON. You can severely burn your fingers and hands.