Hand Wired American Built All-Tube Tone Machines
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The ThunderTrain

The ThunderTrain

$1,199.00$1,599.00

The ValveTrain Thunderball is inspired by the highly revered Valco (S*pro) Thunderbolt of the mid 1960’s.

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Description

ValveTrain ThunderTrain

American Made 35 Watt Tube Amplifier

The ValveTrain ThunderTrain is inspired by the highly revered Valco (S*pro) Thunderbolt of the mid 1960’s. What sets The ThunderTrain apart from the other versions of this classic amp is that its circuit is accurate to the tube rectified version of the original amp.  To reinforce the ThunderTrain’s pedigree it is built using the 35 Watt Valco spec American made transformer set from ClassicTone. These transformers are manufactured to the original blueprints by the same factory and even on the same winding machines as the original mid 60’s Valco Parts.

The ThunderTrain makes every effort to truly capture the magic of the classic amps with it’s 35 watts of hand wired pure 5881 tube driven power.  Pushed hard, there’s a world of rich overdriven tones to be found. Rolled back, the amp produces wonderfully punchy clean tones.

The simple and utilitarian front panel controls consist of the original Volume and Tone controls.  To allow the modern player additional choices and flexibility we have added a Bright voicing switch and the Governor control. We also added a Pentode/Triode switch to the back panel to bring the amp down to 17 watts.

Our Bright Switch adds a bit of sting and vibrancy to the top end without being shrill or overpowering.

The Governor is a output power management control originally designed by Dennis Kager. ValveTrain is pleased to bring this control back to the market through a special arrangement with Dennis. The Governor can be completely switched out of the circuit enabling the full output from the power amp. Power reduction via the Governor is variable. The further the Governor is advanced the more the power is reduced. Once activated the Governor can variably tame the wicked good 35 watts of dual 5881 power down to an apartment friendly 2 watts.

With the Governor off, the amp in Pentode mode and the Bright switch off, it’s all Chicago 1965….
By staying true the original 1960’s circuit and using ClassicTone transformers built by the same factory and specs, the ThunderTrain captures all the magic that has made the Valco amps of the 60’s so desirable.

To meet the needs of today’s player the additional features all work together to take the classic design into the future allowing the player the ability get “their” ValveTrain sound every time!

Specs:

Models Head
1×12 Combo
2×10 Combo
2×10 Vintage Alnico Combo
Power 35 Watts – Class AB – Switchable to 17 Watts
Cathode Bias
Tubes 12AX7 Dual-Triode (preamp)
12AX7 Dual-Triode (phase splitter)
Matched 5881 Duet (power)
Rectifier 5AR4/GZ34
Size 22x11x20 (LxDxH) – Combo
17x9x10 (LxDxH) – Head
Weight 22 lbs – Head
38 lbs – Combo
Speakers 1×12 Combo – Eminence Wizard
2×10 Combo – Eminence Ramrod and Ragin Cajun
2×10 Vintage Combo – Custom Weber Red Basket Alnico
Features Vintage Correct Reproduction Transformers from ClassicTone
Hand Wired Point to Point Eyelet Board
Bright Switch
Volume, Treble, Bass and Reverb Controls
Vintage Style Chicken Head knobs
American Made High Grade Aluminum Chassis
American Made Transformers
American Made Baltic Birch Cabinet

All ValveTrain amplifiers continue to prove that high value and affordable hand wired production amplification is still built in America. All of the major components including cabinet, transformers, speakers, board and chassis are proudly made in America. The amp is hand wired at our ValveTrain facility in Altamonte Springs, Florida. There are over 50 American small to medium size businesses in the supply chain behind every one of these amps.

Additional information

Weight 49 lbs
Dimensions 28 x 14 x 24 in
Model

Head, Combo – 1×12, Combo – 2×10

Color

Black, Emerald Green, Garnet Red

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ValveTrain Amplification, LLC
658 Douglas Avenue
Suite 1106
Altamonte Springs, FL 32714
phone: 407 886-7656

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