® GVT5H Guitar Amplifier full on standby input volume treble bass half off power MODEL GVT5H OWNER’S MANUAL
TABLE OF CONTENTS Important Safety Instructions..................................................2 Introduction / Special Features...............................................4 The Front Panel.....................................................................5 The Rear Panel......................................................................6 Important Information about Tubes..........................................7 Block Diagram.....................................................................
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
Introduction Ampeg has a history of delivering pure all-tube tone for over 60 years. During that time we’ve made great friends and damaged some ear drums. We’ve seen it all, lived it all and lived to talk about it. The backbone of American Rock is back. Become a part of the American tone invasion with the all-new Ampeg GVT Series that delivers all-tube tone force that will set you apart from the rest.
The Front Panel full on standby input volume treble bass 1 2 3 4 1. INPUT: Connect a guitar to this 1/4" input using a high-quality shielded instrument cable. 2. VOLUME: This control adjusts the output level. 3. TREBLE: Use this to adjust the high frequency level of the amplifier. This provides up to 12 dB of boost or 12 dB of cut at 5 kHz. The high frequency output is flat at the center position. 4. BASS: Use this to adjust the low frequency level of the amplifier.
The Rear Panel POWER CONSUMPTION 45W AVIS: RISQUE DE CHOC ELECTRIQUE — NE PAS OUVRIR 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. REFER SERVICING TO QUALIFIED PERSONNEL. THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES FOR THE U.S. AND ICES-003, FOR CANADA.
Important Information about Tubes: The Nature Of Tubes — Why (And When To) Replace Them: Tubes are made up of a number of fragile mechanical components that are vacuum-sealed in a glass envelope or bubble. The tube’s longevity is based on a number of factors which include how hard and often the amplifier is played, vibration from the speakers, road travel, repeated set up and tear down, etc. Any time you notice a change in the amplifier’s performance, check the tubes first.
Important Information About Tubes (continued): Whenever you replace the power tube(s): Check the preamplifier tubes for microphonics by turning the amplifier on, turning up the gain and tapping lightly on each tube with the end of a pencil or a chopstick (my favorite). You will be able to hear the tapping through the speakers, which is normal. It is not normal for a tube to ring like a bell after it’s tapped. If it does ring, then it’s microphonic and should be replaced.
Important Information About Tubes (continued): Survival Tips for Tube Amplifiers: To prolong tube life, observe the following tips and recommendations: • Match the impedance of the speaker cabinet(s) to the amplifier. Improper impedance matching will contribute to early tube degradation and may cause premature tube failure. • Make sure the speaker(s) are properly connected prior to turning on the amplifier. • Allow sufficient time for the amplifier to properly cool down prior to moving it.
INPUT 1/2 12AX7A GVT5H 10 BASS TREBLE VOLUME TONE CONTROL CIRCUITRY 1/2 12AX7A ™ 6V6GT B+ FULL / STANDBY / HALF SWITCH POWER SPEAKER OUTPUTS 4Ω 4Ω 8Ω 8Ω 16 Ω Block Diagram Guitar Amplifier
TECHNICAL SPECIFICATIONS Preamp Tube Power Amp Tube Premium 1 x 12AX7 / ECC83 / 7025 Premium 1 x 6V6GT Output Power Rating 5 watts rms (“full” tetrode mode) / 2.
® H5TVG reifilpmA ratiuG POWER CONSUMPTION 45W AVIS: RISQUE DE CHOC ELECTRIQUE — NE PAS OUVRIR 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. REFER SERVICING TO QUALIFIED PERSONNEL. THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES FOR THE U.S. AND ICES-003, FOR CANADA.
