Related Manuals for Oldfield Amplifiers Marquis Thirty
Summary of Contents for Oldfield Amplifiers Marquis Thirty
- Page 1 Marquis Thirty Owners Guide Oldfield Marquis Thirty Triode Volume 1 Volume 2 Top Cut Pentode Marquis 30 Page: 1...
- Page 2 Congratulations Welcome to the Oldfield family and thank you for putting your trust in Oldfield Amplifiers. We value that trust as much as you will enjoy your new Oldfield amplifier. Your new Oldfield amplifier is built to provide you with the best tonal experience and dura- bility available in a guitar amplifier.
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Page 3: Table Of Contents
Table Of Contents Important Safety Instructions..................4 thru 5 Overview........................Front Panel Controls And Features................7 thru 8 Rear Panel Controls And Features................Tube Layout......................... Warranty........................Page: 3... -
Page 4: Important Safety Instructions
Important Safety Instructions Δ For your safety read, retain, and follow all instructions. Heed all warnings. Δ Only connect the power supply cord to an earth-grounded AC receptacle. This amplifier is designed to operate on standard North American 115V AC and should only be plugged in to a receptacle meeting those specifications. - Page 5 Δ CAUTION: By nature vacuum tubes get very hot during operation. Do not touch vacuum tubes until they have sufficiently cooled. Δ Oldfield amplifiers are capable of producing very high sound pressure levels which may cause temporary or permanent hearing damage. Use care when setting and adjusting vol- ume levels during use.
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Page 6: Overview
Overview The Oldfield Marquis Thirty is a Class A 30 watt all tube, point to point hand wired guitar amplifier. The amplifier has two distinctly different channels with channel 1 using the warm and creamy EF86 preamp tube. It will provide you with rich warm tones when played clean and an all-out cranked tone at higher volumes. -
Page 7: Front Panel Controls And Features
Front Panel: Controls And Features Oldfield Marquis Thirty Triode Volume 1 Volume 2 Top Cut Pentode 1 • Inputs For Channel 1: These are the high and low impedance inputs for channel 1. Chan- nel 1 uses an EF86 as the preamp tube and bypasses the tone controls. - Page 8 7 • Bass: This control determines the amount of bass frequencies present in the amplifier tone. Too much bass will make the tone less focused and could sound “muddy”. This con- trol does not affect the tone of channel 1. 8 •...
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Page 9: Rear Panel Controls And Features
Rear Panel: Controls And Features EF86 Triode Pentode 1 • Fuse: Slo Blo fuse. Replace only with recommended value stamped on the back of your amplifier. Failure to comply with the recommended value could seriously damage the unit. 2 • Power Inlet: Inlet for the 3 prong power cord. Your amplifier is designed to use 120VAC. Using any other voltages will seriously damage the amplifier. -
Page 10: Tube Layout
Tube Layout EF86 Triode Pentode This is the view from the rear of amplifier. Tube Notes: Please refer to the warnings section before handling tubes. Biasing: This amplifier is cathode biased. Replacing power tubes will not require a rebias- ing of the amplifier. Replace power tubes only with a matched quad to achieve optimal tone from the amplifier and avoid power tube issues. -
Page 11: Warranty
Warranty The following warranties apply to the original owner of the amplifier. All warranty work must be performed by Oldfield for the warranty to be in effect. Warranties do not cover normal wear and tear or abuse. Failure to comply with the safety precautions outlined ear- lier in the owner’s manual will void all warranties.
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