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Swart Space Tone Atomic Jr., Ocean Sparkle - Used  From Swart Amps

Great ocean sparkle finish and comes installed with Swarts "Night Light" attenuator 

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This specific item was photographed by us here in Durham, North Carolina. We are a very small team dedicated to providing you the most accurate photos possible, through our obsessive focus - individually photographing nearly everything that comes through the door. Questions about what you see? Want more information, photos, or just a friendly conversation with someone that cares and who has actually had their hands on this exact item? Contact us now!
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Sound Pure's dedication to pre-owned products is unprecedented in the industry. We are a small team of dedicated experts that buys, trades, and consigns. We are trusted by customers all over the world. Our curated collection, is thoroughly tested and inspected by some of the best in the business. Our inventory is constantly changing, ever-evolving, with some items sold before reaching the website. Looking for something specific? Have questions about this product's condition or history? Want more photos, or to simply chat with an expert who's had his hands on this actual piece? Contact us now.
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Swart Amplifiers

"Gone, Baby, Gone"

This one is sold. Don't miss the next one. Some things never even make it to the site so stay up to date on our used collection.

We get in many oddities, rare and vintage products, most of which go fast. If you're on the hunt for something specific, something unique, or something priced right, let us notify you on our used collection before the items even hit the site.

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What We Think

Love that swampy tone !!!

Loaded with Swart's Night Light Jr.

Perfect for recording, practice, and blending with acoustics

Manufacturer's Description from Swart Amps

If only words could actually convey sound fully; they always fall short to some extent.  And that's where I stand with the Space Tone Atomic Jr, the latest amazing, soulful little amp from the hands of Michael Swart.

The new ST-Atomic Jr starts off with the heart of our ever-popular ST-6V6se with the addition of a year in the making, triode reverb stage utilizing a dedicated 12DW7 fed into a nifty spring tank for surprisingly BIG REVERB, especially for a cabinet this size. Actually, for ANY size cabinet.  (Wait till you hear Greg V's samples ).

The tonal variations and REVERB in this little monster must be heard to be believed.  Most amps this size attempting reverb and big tone tend to be underwhelming.  Not so with the 14lb Class A ST-Atomic Jr.

The circuit remains amazingly simple, including this reverb stage, and will feature volume, tone, and Swart's patented "Space" reverb.  I've been playing this beast non-stop since the prototype hit my apartment, never to leave.  It's the perfect amp for those craving AST type sound in a package that weighs no more than a ribald ole Tom Cat.

There is a cool switchable gain option in place of the 6V6se feedback switch. When in circuit, the amp has more cleans and take a bit longer to break-up.  It's a slightly more controlled result.  Flip it out of circuit and you have slightly less compression with a more raw take, quicker to get into the fun stuff. Think of it as HOT SWITCH NOW like the good ole Krispy Kreme Donut Shop.

Like all Swart amps, the circuit is point to point, hand-wired and CATHODE BIASED with no need to mess with adjustments when rolling tubes. 

The Atomic Jr has two driver/preamp tubes comprised of one 12AX7 and one 12DW7 feeding either a 6V6 (stock) or 6L6 family power tube.  We also keep the simple tone cut bringing the least complexity, integral in keeping touch sensitivity and transparency.   Of course, the Atomic Jr. relies on tube rectification for PS filtering with a JJ 5AR4/GZ-34 as stock with the ability to run a NOS 5Y3 for more Sag, compression, earlier breakup, and that Brown Sound (it also brings 34v less on the tubes).We want to avoid that harshness that seems to ride along with solid state rectification. Try a vintage 5Y3 for a bit more SAG and less voltage on the power tubes.

It has the same excellent 6V6se 4ohm output transformer and comes stock with the Weber Signature 8 Ceramic.  The tweed covered, finger-jointed pine cab resembles a baby AST with light tweed and dark side panels. Other covering options are available.

Swart Amplifiers

Specifications

  • Space Tone Atomic Jr Specifications
  • Single-Ended Output - Zero Negative Feedback
  • 100% Tube Circuit - GZ34 or 5Y3 Valve Rectifier
  • Big Swart Tube Reverb via 12DW7 & Spring Tank
  • Hot and Clean mode Switch
  • Powered by choice of 6V6 or 6L6 (shod w/6V6)
  • JJ 12AX7 - JJ 12DW7 - JJ 6V6GT - JJ GZ34 Rectifier
  • Point to Point Hand Wired Circuit
  • Cathode Biased (no need to bias)
  • Carbon Comp Resistors ~ Mallory Caps
  • Cloth Hook-Up Wire
  • Heaters referenced to ground
  • All Swart Amplifiers employ Star Grounding
  • 4 ohm 1/4" Out - Drive other Speaker/Cabinet
  • Switchcraft 1/4 inch input and output
  • CTS Potentiometers
  • Custom High Quality USA Built Swart Spec Iron
  • Speaker: 8" Weber Signature ~ 4 ohm
  • Finger-Jointed, solid Pine Cab w/ Lacquer Tweed Cover
  • Vintage Jewel Lamp ~ Circuit Fuse Protected
  • Dimensions: 13 3/4T x 13W x 7 1/4 D @ 14lbs
  • 5W CLASS A ~ JUST INSANELY BIG TONE wReverb