Changing Tubes on Vacuum Tube Amplifiers : How to Correct Crossover Distortion on a Tube Amp

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Uploaded by on Jan 19, 2008

Learn how to correct crossover 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

  • Oh shit. I cant find my sine wave generator. I think I left it in my other pants.

  • I think Jack Black and Jim Carrey had a baby. This baby is now grown up and posting vids on youtube about biasing...

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All Comments (39)

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  • I would have liked to seen the bias current measured on a DMM while he adjusted it so I could see the relationship btwn bias current and xover distortion.

    But that's a great video, very easy to unnerstand.

  • did anyone else notice how damn cold that bias was?? holy sh--!

  • Oh no, wheres MY rack with a sine wave generator, oscilloscope and amplifier dummy load??

    Probably left them by my Ferraris in my garage, section B56

  • you can find a sweet spot with your ear. the amp will sound better as the bias gets hotter but at a certain point it dosn't do you any good to go hotter. you can easily listen to find it when all the fizz in your sound goes away.

  • Super Nerd!!!!!!!!!!

  • @melonheed3 i just get the shop to do it now lol only 20quid so its a bargin for the amount of time this needs done.

  • @lantyboy not that this helps too much but, i know there is a way to bias your amp using a voltage meter. still, another peice of equipment but i'd bet my bean bag that it's cheaper than buying a fucking ociloscope.

  • If replacing tubes is it nessasery to bias the tube's every time or can the tube simply be replaced.?

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