Swart Atomic Space Tone AST

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Atomic Space Tone AST

The idea for the Atomic Space Tone hit Michael Swart when he was working on a vintage Gibson Scout guitar amp. It had Reverb, Tremolo, and 15 watts of pure rocking vintage tone power but only three preamp tubes and two EL-84 output tubes. He thought to himself - "I have never seen an amp that could do so much with so little and sound surprisingly good." But he knew it could be even better. He knew something could be built revolving around his favorite little tone generator, the 6V6. He sent a note of thanks to his cohort for the inspiration for one of the best amplifiers he has ever built and the only thing he has found to equal the soul and amazing tone of the ST-6V6se but with MORE power.

This amp brings more tube soul than thought possible, even compared to most classic vintage amps. We are talking ALL TUBE circuitry, even the Tremolo and Reverb, all leading into the excellent 12" Mojotone BV-25m speaker.


  • powered All tube circuit. 
  • 18-20 w twin 6V6 High Class A Biased AB
  • Can be powered by 6V6 or 6L6
  • Cathode "AUTO" Biased (no need to bias for tube rolling)
  • JJ/Tung-Sol 12AX7(2) - JJ 12DW7 - JJ 6V6 - JJ GZ34
  • Tube Rectification: GZ34
  • Sub NOS 5Y3 for earlier breakup/increased compression
  • 100% Tube Reverb & Tremolo ~ Quality Spring Tank
  • Hi/Lo Inputs for better PU Output matching
  • Hand wired point to point 
  • Standby Switch - Amp warmed up / extends tube life
  • Carbon Comp Resistors for BEST TONE
  • Mallory, Sprague, and JJ Caps selected for Application
  • Finest silver tinned cloth & Teflon covered wire 
  • 8 Ohm High Quality Custom Output Transformer
  • Dedicated 2 button foot switch included
  • Rubber Feet for Vibration/Protection
  • Solid, finger-jointed Cabinet ~ Lacquered Tweed
  • Standard with 12" MojoTone BV-25 ~ Excellent Vintage Tone!
  • Can fit Celestion Alnico Blue/Gold/Cream
  • FUSE: 1A Slow Blow 250v 3AG 1/4 x 1-1/4(30mm)
  • Dimensions: 18" T x 15 1/2 W x 9 1/2 D ~
  • Weight: 29lbs

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