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Changing Tubes on Vacuum Tube Amplifiers : How to Use a Voltmeter to Test a Tube Amp

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Uploaded by on Jan 18, 2008

Learn how to use a voltmeter when changing the tubes on a vacuum tube amplifier in this free video.

Expert: Jeff Naylor
Contact: www.Mtroniks.com
Bio: Jeff Naylor is the owner and operator of Mtroniks Engineering in Mesa, Arizona.
Filmmaker: Eric George

Category:

Science & Technology

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License:

Standard YouTube License

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Top Comments

  • THANKYOU!

  • Hey the meter changed from an 8x to a 177 midway through the video.

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All Comments (14)

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  • Marantz 1060 on the Rack! Great amp!

  • try doing it sober and You may not get shocked !

  • wow. i just wasted 2 minutes of my youth

  • i kept waiting for something to explode... dangit

  • DO NOT stick your tongue on the tubes while they are on, THEY ARE FUCKING HOT !!

  • good day. I have a problem with a marshall jcm 2000 dsl head. latch on properly, the tubes light up fine, but nothing is heard it all, I opened it and everything looks good does not look that burned inside, the fuses are good, you could help me

  • 0:00

  • @Axeman2006 LOL. I found that out years ago. It actually happened at a pawn shop where I was desperately trying to sell/pawn a Fender Vibrochamp that had a bad fuse. Thank god it fizzled out. I still have the Champ and 3 others.

  • @Chuckjagermeister dude you got shocked changing your tubes lol

    try changing them with the power off and unplugged!!!

    I always use gloves and your only touching the glass bro....lol

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