SKU: 52380117550

Tube Works RT4250 ProValve Stereo Tube Power Amp Made In USA - 120V

Sale price$448.20 Regular price$498.00
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Pay in installments of $124.50 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 22 - Jul 27

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Description

Tube Works RT4250 ProValve Stereo Tube Power Amp Made In USA - 120VTube Works RT4250 ProValve Stereo Tube Power Amp Made In USA 120V The Tube Works RT 4250 ProValve is a stereo tube power amplifier designed by B. K. Butler and manufactured in the USA during the late 1980s and early 1990s. It delivers 50 watts per channel through a quartet of 6L6GC or 5881 power tubes, making it suitable for both guitar and bass applications. The RT 4250 features a hybrid design, combining a solid state front end with a tube driven

Tube Works RT4250 ProValve Stereo Tube Power Amp Made In USA - 120V

The Tube Works RT-4250 ProValve is a stereo tube power amplifier designed by B.K. Butler and manufactured in the USA during the late 1980s and early 1990s. It delivers 50 watts per channel through a quartet of 6L6GC or 5881 power tubes, making it suitable for both guitar and bass applications. The RT-4250 features a hybrid design, combining a solid-state front end with a tube-driven power section, and includes built-in attenuators for achieving saturated tube tones at lower volumes.

Condition:

  • This is a used unit. 


  • Physically this unit is in good condition. It shows some general wear from use and age like some rack rash, nicks, scratches and scuffs. There is nothing major and overall it is still a nice amp. Please see all photos for further details.

  • All switches and potentiometers function as they should. This unit is 100% functional and has not faults to note.

  • Please be aware this unit is 120V. This means it MUST be used with a step-down transformer, not a travel adaptor. This amp can draw up to 300W so will need a large step-down transformer. Please check in if you are unsure as we can help you source the correct and high quality step-down.

  • If you purchase from outside Australia you may need a step-down transformer to use this unit. Please contact us if you need any help sourcing the correct product. 

  • This beauty sounds great and is ready to go at home or in the studio! 

  • This sale is for the Tube Works unit only. 

Postage:

If you are in a remote area you may incur extra fees.

Your order will be processed within 5 business days.Your order will be processed within 5 business days.

International import tax, duty, vat, custom fees or any other charges are not covered by us, nor included in the shipping fees. These are the responsibility of the buyer. 

Return Policy:

We do not accept returns for incorrect purchase or change of mind. 

Returns will only be accepted for manufacture defects / faulty items. Please contact us if you have any problems with your purchase and we will strive to work it out with you.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 52380117550

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Edwin Cordero
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★★★★★ 5
Great quality
Size: 14 gauge silicone wire 10ft and 10ft, Color: silicone wire red and black
Very flexible and great quality.
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Reviewed in the United States on July 29, 2025
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MG
Battle Creek, US
★★★★★ 5
Works well, good quality
Size: 14 gauge silicone wire 5ft and 5ft, Color: silicone wire red and black
This has worked well over the last few years. Used moslty on battery leads for quadcopters. The wire and insulation has held up well, is good quality, solders fine. I have since used other BNTECHGO silicone wire as well, and not been dissapointed.
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Reviewed in the United States on August 10, 2024
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Makrel Johnson
West Palm Beach, US
★★★★★ 5
Great for re-wiring a 12/24v DC PSU for a 3D Printer
Size: 14 gauge silicone wire 10ft and 10ft, Color: silicone wire red and black
I'm familiar with this wire as it was just coming to market as I was fading out of the RC hobby back in ... well the 90's? When I got a roughly cared for and damaged CR-10 for cheap, I decided to remodel it and place the guts and gear under the frame. This wire is thick enough to wire the power plug, MOSFett, and main board with no concern for the 30 A amperage it could draw. It crimped easily, stripped cleanly and is super supple. I paired this with a 7 color pack to re-wire things to arrange plugs where I needed them to be. It's good wire and I may even use some when I dig out my old RC-10 graphite or Bo-Link fiberglass chassis...
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Reviewed in the United States on July 26, 2019
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Mr. G
Pawtucket, US
★★★★★ 5
As advertised
Size: 14 gauge silicone wire 10ft and 10ft, Color: silicone wire red and black
As advertised
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026
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Verified Purchase
Billy Burlinson
West Palm Beach, US
★★★★★ 4
Good wire.
Size: 14 gauge silicone wire 10ft and 10ft, Color: silicone wire red and black
Flexible. I need this type of wire for the high current. It's good.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 27, 2025

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