Seller notes:
Listing is for a single NEW Frequency Central Thermo Nuclear in brand new condition for the following piece(s) of equipment: Eurorack Modular. Madisynths is an official Frequency Central dealer. We stand behind these fantastic modules as long time users, with about half of our personal racks consisting of FC synth gear!

Need to warm up your studio? Add a bunch of these to your rack, with the side benefit of warming up your tone with some tube distrtion!

Stock Update:
In stock and ready for same day shipping!

About the Frequency Central Thermo Nuclear:
ThermoNuclear is a sub-miniature vacuum tube based overdrive. The first stage is a MOSFET with switchable mu-amp. The second stage is a self biased sub-miniature pentode with switchable triode/pentode. Then there’s a tonestack based on the EH Big Muff. Finally, there’s a blend control and another MOSFET stage for some gain recovery after the tonestack. ThermoNuclear will crush and destroy your tone with a pleasing warm tubey goodness.

Although the filament of the tube will glow, it’s not a lightbulb, and the level of glow may vary between different tubes.

There are 3 LEDs in this design:
  • The two on the main PCB are being used for their diodic properties to protect the MOSFETs. Whether they light up or not is irrelevant (they might, just a tiny bit).
  • The third LED on the sockets PCB is used to bias the tube’s cathode. This has the same effect as a bias resistor with a perfect bypass capacitor. The LED will slowly come on as the valve warms up.

FAQ

Q: Is this a Valvecaster/Safety Valve variant?
A: Ha! In as much as you are a fish variant. No!

Q: Is the tube fragile?
A: Physically, yes – don’t drop it. Electronically the tube is as strong as a great mountain range which has stood for millions of years against wind, weather, war, plague, pestilence, famine and fascism.

History
Millions of years ago we created the Thermionic Overdrive pedal. Last year (2021), this one (picture of original pedal format) came back in for repair. We fell back in love and decided to recreate it as a Eurorack module. If you think that Frequency Central should return to commercial pedal building, please pay for a huge billboard in your village/town/city saying “I think that Frequency Central should return to commercial pedal building” and send us a photo.

Product specifications:
  • Depth      35 mm
  • Width     4 HP
  • 12V draw   175 mA
  • -12V draw  4 mA
  • 5V draw    0 mA


  • Shipping notes:
    FAST SHIPPING IS OUR STANDARD SERVICE, WITH SAME DAY SHIPPING & DROP OFF, AND TWO-DAY SHIPPING IS AVAILABLE AS AN UPGRADE ON MOST SHIPPING PROFILES! Saturday afternoon & Sunday sales will be taken to the shipper early on Monday mornings. If you are in the Madison, WI area, a showing can be arranged, and free local pickup is available. In-person cash payment can be arranged to avoid the payment processing fees, but not the Reverb seller fees (those will be reported and the 5% paid to Reverb).

    DUE TO RECENT CHANGES IN REVERB SHIPPING OPTIONS, COMBINED SHIPPING MAY NOT AUTOMATICALLY BE AVAILABLE. IF NOT, PLEASE MESSAGE US, AND ADJUSTMENTS CAN BE MADE ON ORDERS WITH MULTIPLE ITEMS.

    For all small and some medium items, the item will be bubble wrapped and well secured in a strong box. For some medium items (sizable drum machines, table top synths) and all large items (keyboards and rack mount devices), item will be double-wrapped and double boxed.

    NOTE: We will combine shipping for parts and small items, and often have more in-stock than what is listed (especially replacement keys). Please message us your requirements for multiple parts needed (where multiple items are available, but only one can be purchased at a time), and we will adjust shipping and/or bulk discounts accordingly.

    Madisynths stands by the items that we sell with Reverb's standard used/vintage gear return policy (within 7 days of delivery) as well as the standard new gear return policy (within 14 days of delivery, excluding parts that have been soldered or are otherwise no longer new). Shipping charges to (including actual charges for free shipping items) and from will be deducted from refund on all returns. Very few specific listings have been designated “as described with no returns, mostly items noted as “for parts” or “non-functioning.“

    ConditionBrand New (New)
    Brand New items are sold by an authorized dealer or original builder and include all original packaging.Learn more
    Brand
    Model
    • Thermo Nuclear (Tube Overdrive) for Eurorack Modular
    Finish
    • Black
    Categories
    Year
    • 2022
    Made In
    • United Kingdom

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    Madisynths

    Waunakee, WI, United States
    Sales:1,024
    Joined Reverb:2017

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