Mesa/Boogie Comprehensive Guide to Tube Functions and Tasks for Mesa Boogie Amplifiers

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Dual Caliber DC-3TUBE TASK CHART NOTE: BEFORE CHANGING TUBES FLIP POWER SWITCH TO STANDBY.

Partial View Of Chassis

 

 

 

 

 

 

(Each 12AX7 contains two separate Triodes)

 

 

 

 

12AX7

 

 

B A

B A

B A

B A

B A

B A

V 6

V 5

V 4

V 3

V 2

V 1

 

 

 

EL-84

 

 

 

 

 

 

 

12

GRAY

 

 

 

 

PAGE

REVERB

 

 

 

 

 

 

 

 

 

WHITE

 

 

 

 

 

 

 

REAR OF CHASSIS

 

 

Description of Tube Functions

V1A= First Rhythm

V4A= Third Rhythm

V1B= First Lead

V4B= Second Rhythm

V2A= Second Lead

V5A= Reverb Send

V2B= Third Lead

V5B= Reverb Return

V3A= Fourth Lead

V6A=

Phase Splitter / Driver

V3B= FX Return

V6B=

 

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Contents Dual Caliber DC Hello from the Tone Farm USE Common Sense and Always Observe These Precautions DC-3 DC-3Operating Instructions Gain POWER-UPUse of the EQ. see page 5 for more information on EQ Treble MidrangePurpose MID Control From 0 to about BassPresence AroundINPUTdominant in the mix MasterOutput Level Graphic EQPower Toggle Switches Rhythm / LeadOn / Standby Fuse EQ SelectFtsw EQ/REV Ing tradition and save the replaced set as sparesFX Loop Send / Return FX MIXRecording Silent RecordingSlave SpeakersSample ChannelPersonal Settings 12AX7 Tube Noise & Microphonics Diagnosing Power Tube FailuresTube Noise Diagnosing PRE-AMP Tube Problems Why doesn’t Mesa put bias adjustments in their amplifiers? Here’s a question we often hearBias Adjustment Your amp needed biasing Cheers Randall Smith Designer & PresidentFront View DC Rear View DCMesa Boogie 707 778-6565 FAX no

DC3 specifications

The Mesa/Boogie DC-3 is a highly regarded guitar amplifier known for its versatility, power, and distinctive tone. Introduced during the early 1990s, the DC-3 has become a staple among musicians who appreciate its unique blend of classic and modern sounds. The amplifier is part of the Mark series, renowned for its innovative design and exceptional sound quality.

One of the standout features of the DC-3 is its all-tube preamp, which contributes to its warm and rich tonal characteristics. The amplifier utilizes three 12AX7 tubes in the preamp stage, providing a dynamic response that enhances the natural tonal qualities of the guitar. This all-tube configuration is complemented by a powerful 2x6L6 power tube setup, delivering a powerful 30 watts of output. This combination allows the DC-3 to produce a wide range of tones, from clean and sparkling to thick and saturated drive.

The DC-3 is equipped with a unique two-channel design, offering a Clean channel and a Lead channel, each with its own set of controls for ultimate tonal shaping. The Clean channel is characterized by its bright and articulate sound, making it suitable for a variety of genres, including jazz, pop, and rock. The Lead channel, on the other hand, offers greater gain and sustain, perfect for heavier styles like hard rock and metal. These channels can be blended together using the shared EQ, allowing for a truly customizable sonic experience.

Mesa/Boogie's innovative graphic equalizer further enhances the versatility of the DC-3. It features a five-band EQ that allows players to sculpt their sound with precision. This feature makes it easy to dial in the perfect tone for different performance environments, whether in the studio or on stage.

The DC-3 also includes a built-in reverb, adding depth and ambience to the overall sound. This is a valuable addition for musicians looking to enrich their performances without the need for additional effects pedals.

Robust construction and attention to detail are hallmarks of Mesa/Boogie amplifiers, and the DC-3 is no exception. It is built to withstand the rigors of touring and the demands of professional musicians. With its impressive tonal palette, reliable performance, and durable design, the Mesa/Boogie DC-3 continues to be a favorite among guitarists, making it a worthy investment for anyone serious about their craft.