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Safety Tips for Changing Tubes on an Amplifier

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Part of the video series: Changing Tubes on Vacuum Tube Amplifiers

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Summary: Learn safety tips when changing the tubes on a vacuum tube amplifier in this free video.

Views: 992 | Tags: repair, change, amplifier, tube, tubes, repairs, amp, vacuum, circuits, amplifiers, musical equipment, tube amps

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About the Expert
Contact: Mtroniks.com

Jeff Naylor Jeff Naylor is the owner and operator of Mtroniks Engineering in Mesa, Arizona. Mtroniks has been in business for over twenty-five years, specializing in elec... read more

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Video Transcript

Safety Tips for Changing Tubes on an Amplifier

Hello, this is Jeff Naylor from Mtroniks Engineering in Mesa, AZ, for Expert Village. Today, we're going to be covering the basics in tube amp maintenance; which include safety, tools, tube selection, bias, basic terminology, and diagnostics. For demonstration purposes today, I have chosen Marshall TSL 60. This is one of many amps in the JCM 2000 series. I've chosen this amp because of its simplicity in biasing, and its inherent safety features. These same techniques can be used in all the JCM 2000 series amps, which include anything in the DSL and TSL line. Before we begin today's lesson, I wanna mention my safety concerns. Inside any tube amp there are residual voltages of several hundred volts that can kill you long after the amp has been unplugged. I do not recommend, in any circumstance, taking the amp out of its wooden case. I also recommend extreme caution while replacing the tubes. If your amp has been played recently, it can be extremely hot, and can burn your fingers. Always read your owner's manual, and obey the operational instructions, and if you have more advanced problems with your tube amp, make sure to take it to a professional. In our next segment, we'll discuss the basic tools you'll need to change and bias your tubes. See you there!

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