Mesa/Boogie 5Y3 Rectifier Tube

Replacement Rectifier Tube
Write review Item ID: MB5Y3Rect
Mesa/Boogie 5Y3 Rectifier Tube image 1
Mesa/Boogie 5Y3 Rectifier Tube image 1
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Mesa/Boogie 5Y3 Rectifier Tube
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Premium Mesa/Boogie Tone!

You'll find the MESA 5Y3 inside all the Mesa/Boogie Lone Star Special tube amplifier. The MESA 5Y3 is a true, authentic 5Y3 NOS (New Old Stock) tube based on the original Phillips 5Y3 and is built to Mesa/Boogie's exacting specifications. This tube produces a sultry vintage sag, creating a silky, smooth feel on the strings and provides the most sag of all of Mesa/Boogie rectifier tubes. Get vintage tone with the MESA 5Y3.

Mesa/Boogie MESA 5Y3 Rectifier Tube Features:
  • Based on classic Phillips 5Y3
  • Delivers that traditional vintage sag
  • Found on Lone Star Special amplifiers
  • Important Notice for International Customers: Mesa/Boogie products sold by Sweetwater are intended for use within the United States. We are unable to ship any Mesa/Boogie products outside of the US.
The Mesa/Boogie MESA 5Y3 sports amazing feel and exceptional quality!

Additional Media

Guitar Amp Buying Guide

Tech Specs

Type Rectifier
Model 5Y3
Manufacturer Part Number 750770F

Customer Reviews

Based on 1 review
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Do not use in Lone Star Special amp

This Sweetwater ad states this tube is NOS and comes in the Lone Star Special amp. They do come in the amp, and the Mesa folks have come up with three different mods to lower the voltage but this tube still burns out. Usually in a month. Sometimes right away. You need a real NOS tube like Bendix 6106 in the Lone Star Special.
Music background: pro hobbyist
See also: Replacement Tubes, Mesa/Boogie, Mesa/Boogie Miscellaneous Guitar Amp Accessories, Mesa/Boogie Guitar Amp Tubes