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NAD 1969 Traynor YBA-1 Bass Master

Discussion in 'Amp Central Station' started by KeepItSimpleTele, Dec 3, 2020.

  1. KeepItSimpleTele

    KeepItSimpleTele Tele-Meister

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    Got another Traynor Bass Master YBA-1. It has the transformer choke in this one from 1969. Huge iron. Sounds massive but I"m a little surprised the two different channels sounds fairly similar to each other. IMG_9404.JPG IMG_9409.JPG IMG_9410.JPG IMG_9403.JPG IMG_9466.JPG IMG_9405.JPG
     
  2. Brian J.

    Brian J. Tele-Afflicted

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    love it
     
  3. LoveHz

    LoveHz Tele-Holic

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    Had mine for almost 30 years -- paid £70 (UK) for it. I changed the knobs to chicken heads because I find them easiest to read at a quick glance. A reliable and great sounding amp, but on mine there's definitely a considerable difference in tone between the two channels. For guitar I generally just use the bass channel. If I'm playing a guitar that tends to sound a bit too dark then I'll use a patch lead to link both channels and dial in a little more top. I partner the amp with a 1x12 cab with an Eminence Wizard speaker for a compact, straightforward rig that's as loud as I've ever needed without turning it past 4 on the dial -- normally 2 is enough. I play mostly clean and if I want any drive I use a pedal -- at the moment that's provided by a TC Spark Booster (not the mini version).

    20201009_122230.jpg
     
    Last edited: Dec 3, 2020
    drewg and KeepItSimpleTele like this.
  4. uriah1

    uriah1 Telefied Gold Supporter

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  5. dougstrum

    dougstrum Tele-Afflicted

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    Nice~looks like you are using it for music time at school:)
     
  6. NTC

    NTC Tele-Meister

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    My first amp is one of these. You still have the original signal caps. My original amp was used as intended- as a bass amp.

    The one that LoveHZ has may have the circuit change that changes the cathode follower to another gain stage, has a mid-cut filter, and smaller iron. Apparently the earliest YBA-1's have even bigger iron and use 7027 output tubes.

    I have two '69s and one of the 72s. My 72chas been modded back into more of a 5F6A bassman and has a resistor to simulate a 5AR4 rectifier and 6L6WGB output tubes. Very sweet sounding.

    YBA-1'S are 5F6A's at heart. When I first played a Victoria bassman clone, I was surprised at how familiar the sound was to me. I had one at home in my first amp...

    If you use actal EL34's they have a very different sound. 6CA7's sound more like 6L6's. EL34'schave more of that famous crunchy distortion while the 6CA7's roar. Both at really high volume...
     
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  7. ce24

    ce24 Poster Extraordinaire

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    Congrats. Vintage traynors are the bomb. Here's my YRM-1 "73". IMG_20200919_184842.jpg
     
  8. noname_dragon

    noname_dragon Tele-Meister

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    Wow... my first bass rig was a YBA Bass Master with 2 Traynor YVC-18 folded bins, and a '68 P bass.
    It was an earth mover!
     
    Last edited: Dec 4, 2020
  9. KeepItSimpleTele

    KeepItSimpleTele Tele-Meister

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    Yeah I’m a bit confused with the two channels being similar in tone. Not clones...but way more similar than my later 73’ YBA-1. I wonder if bright cap had been removed...

     
  10. Bob Womack

    Bob Womack Tele-Afflicted

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    Great amps. Here's my 1973 YRM-1 Reverb Master:
    [​IMG]

    Bob
     
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  11. joshote

    joshote Tele-Meister

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    Man I always wanted one of those. Beautiful amp!
     
  12. tah1962

    tah1962 Friend of Leo's

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    Nice score. Congratulations.
     
  13. Bellacaster

    Bellacaster Tele-Afflicted

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    I have a '70 or '71 YBA-1 and removed the bright cap and the bright channel is still very much brighter than the bass channel. Mine doesn't have the choke. Congrats on your recent acquisition!
     
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