/ Register

Benefit of Mesa’s multiple rectifier tubes

Discussion in 'Amp Central Station' started by mexicanyella, Aug 9, 2020.

  1. Aug 9, 2020 #1
    mexicanyella

    mexicanyella Tele-Afflicted

    Posts:
    1,778
    Joined:
    Jan 26, 2012
    Location:
    Troy, MO
    I’ve assumed Mesa dual- and triple-rectifier amps used the multiple rectifier tubes to achieve harder-hitting transients due to less power supply sag.

    If that’s true, then what is the benefit of using multiple rectifier tubes over just using solid-state rectification?

    Do rectifier tubes impart tonal artifacts as well as sag characteristics?
     
  2. Aug 9, 2020 #2
    100LL

    100LL Tele-Meister Ad Free Member

    Posts:
    123
    Joined:
    Jun 23, 2020
    Location:
    Houston, TX
    funny i was just speaking to a long time amp tech and this came up. He did all the warranty work in the region for Mesa. His comment [paraphrased] to my question regarding their rectification philosophy was that he considered it silly. that is, why use tube rectifiers if you don't let them be tube rectifiers.

    i think its kind of clear that mesa likes solid state rec's but they'll do some tube rec's kicking and screaming to satisfy those customers demanding them.. but by god they're going to stack them so you'll never hear it.
     
    Tim S, archetype and corliss1 like this.
  3. Aug 9, 2020 #3
    corliss1

    corliss1 Friend of Leo's Platinum Supporter

    Posts:
    4,311
    Joined:
    Sep 13, 2008
    Location:
    Lansing, MI
    ^Exactly that
     
    Andy B likes this.
  4. Aug 10, 2020 #4
    green_henry

    green_henry TDPRI Member

    Posts:
    62
    Joined:
    Nov 2, 2013
    Location:
    Pleasant Hill, CA
    My Blue Angel is a dual rectifier, but there's no option to switch between them -- I guess this is what you mean by "stacked". On the other hand, I can switch between tube and solid state on my Maverick -- and they respond differently. Are the other dual rectifiers non-switchable?
     
  5. Aug 10, 2020 #5
    mexicanyella

    mexicanyella Tele-Afflicted

    Posts:
    1,778
    Joined:
    Jan 26, 2012
    Location:
    Troy, MO
    Thanks for answering my question!

    I used to play through a pair of Valco 1 X 10 tweed combos from around 1959-1960. Both originally came with 5Y3 rectifier tubes, but one of the amps had a the rectifier heater winding on the way out in its power supply transformer. So I put a plug-in solid state rectifier in its tube socket as a stop-gap measure. The difference in feel and perceived loudness was immediately obvious. It was a louder, harder-feeling amp after that.
     
  6. Aug 10, 2020 #6
    DougM

    DougM Friend of Leo's

    Posts:
    4,762
    Joined:
    Jul 5, 2017
    Location:
    Honolulu, HI
    Doesn't using more than one increase the current capability without losing the tube rectifier feel?
     
  7. Aug 10, 2020 #7
    Frodebro

    Frodebro Doctor of Teleocity Ad Free Member

    Age:
    50
    Posts:
    15,986
    Joined:
    Aug 17, 2012
    Location:
    Seattle
    Yes. That's why a 50 watt Mesa Single Rectifier has one rectifier tube, the 100 watt Dual Rec has two, and the 150 watt Triple Rec has three.
     
    DougM likes this.
IMPORTANT: Treat everyone here with respect, no matter how difficult!
No sex, drug, political, religion or hate discussion permitted here.