Table of Contents
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Table of Contents
Related Manuals for Crate V18-112
Summary of Contents for Crate V18-112
- Page 1 V18-112 V18-212 Tube Guitar Amplifier with Reverb Owner’s Manual...
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Page 2: Table Of Contents
V18-112/V18-212 Tube Guitar Amplifier with Reverb TABLE OF CONTENTS Introduction ...3 The Front Panel ...4 The Rear Panel ...5 Important Information About Tubes and Tube Products ...6 A Brief History of Tubes ...6 Tube Types and Usage ...6 The Nature of Tubes: Why (and When) to Replace Them ...7 The Importance of Proper Biasing ...8... -
Page 3: Introduction
The V18-112 and V18-212 are single-channel amplifiers with gain and master volume controls, treble/mid/bass tone controls, and an inter- nal spring reverb. They crank out 18 watts from a pair of EL84 tubes into either one (V18-112) or two (V18-212) internal speakers. -
Page 4: The Front Panel
V18-112/V18-212 Tube Guitar Amplifier with Reverb The Front Panel G A I N L E V E L I N P U T INPUT: Use this jack to connect your guitar to the amplifier using a shielded instrument cable. GAIN: Use this to adjust the gain for the channel’s Overdrive. -
Page 5: The Rear Panel
V18-112/V18-212 Tube Guitar Amplifier with Reverb The Rear Panel ~120-240VAC SERIAL NUMBER 50-60 Hz N222 3031613 CONFORMS TO IEC 60065 MANUFACTURING DATE WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. DO NOT REMOVE COVER. NO USER SERVICEABLE PARTS INSIDE. -
Page 6: Important Information About Tubes And Tube Products
V18-112/V18-212 Tube Guitar Amplifier with Reverb Important Information about Tubes and Tube Products: A Brief History Of The Tube: In 1883, Edison discovered that electrons would flow from a suspended filament when enclosed in an evacuated lamp. Years later, in 1905, Fleming expanded on Edison’s discovery and created the “Fleming Valve.”... -
Page 7: The Nature Of Tubes: Why (And When) To Replace Them
V18-112/V18-212 Tube Guitar Amplifier with Reverb Important Information About Tubes and Tube Products (continued): The power tubes are the largest tubes used in an amplifier. These tubes convert the low-level, conditioned signal from the preamplifier into a level that is sufficient to drive the speakers. -
Page 8: The Importance Of Proper Biasing
V18-112/V18-212 Tube Guitar Amplifier with Reverb Important Information About Tubes and Tube Products (continued): Whenever you replace the power tube(s): • Always have the amplifier’s bias voltage checked by a qualified service center. Improper bias voltage will cause degradation in performance and possibly damage the tubes and/or the amplifier. -
Page 9: Survival Tips For Tube Amplifiers
V18-112/V18-212 Tube Guitar Amplifier with Reverb Important Information About Tubes and Tube Products (continued): Survival Tips For Tube Amplifiers: To prolong tube life, observe these tips and recommendations: • Match the impedance of your speaker cabinet(s) to your amplifier. Improper impedance matching will contribute to early tube degradation and may cause premature tube failure. -
Page 10: System Block Diagram
V18-112/V18-212 Tube Guitar Amplifier with Reverb System Block Diagram 12AX7A GUITAR 12AX7A INPUT OVERDRIVE GAIN LINE OVERDRIVE LEVEL REVERB REVERB 12AX7A 12AX7A TREBLE MID EL84 PHASE SPLITTER 12AX7A 12AX7A EL84 REVERB LEVEL BASS 8 OHM INTERNAL SPEAKER... -
Page 11: Service Information
V18-112/V18-212 Tube Guitar Amplifier with Reverb Service Information If you are having a problem with your V18-112 or V18-212, you can go to our website (www.crateamps.com) and click on Support for service information, or call 1-800-898-3211 during business hours (7 am to 5 pm PST, Monday-Friday). If you are outside of the U.S., contact your local distributor for technical support and service. -
Page 12: Technical Specifications
V18-112/V18-212 Tube Guitar Amplifier with Reverb V18-112/V18-212 TECHNICAL SPECIFICATIONS Output Power Rating Signal-to-Noise Ratio Gain Speaker Specs V18-112: V18-212: Preamp Tubes Power Tubes Power Requirements Size (H x W x D) V18-112: V18-212: Weight V18-112: V18-212: 16220 Wood-Red Road NE • Woodinville, WA 98072...