Power Scaling Kits

Power Scaling™ is London Power's proprietary methodology for achieving the same tone from "unusably loud down to unusably quiet". We invented Power Scaling. No one else offers the same dynamic range of control or versatility of performance. The original and still the best!

These kits are designed by Kevin O'Connor and supplied with the highest quality parts. 

WHICH KIT? Make sure you see our Selecting a Power Scaling Kit page.

Or begin your search here:

• 99% of all fixed-biased amps use SV1 + RBX
• Cathode biased amps (so-called class-A) use SV2 + VCK

If you have questions about application or installation, please email us at amps@londonpower.com, or phone 807-473-0952 from 11am-6pm, M-F EST.  Get correct advice and help right from the source.

SV-BLT - Pre-assembly of Power Scaling Kit

$80.00

Add SV-BLT if you would like to receive your Power Scaling kit pre-assembled. This applies to: .....

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SV1 - Super-Versatile Super-Value Power Scaling Kit for Fixed Bias

$78.00

London Power's SV1 Power Scaling Kit, along with our RBX Raw Bias Auxiliary Supply Kit, make up t.....

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SV-TT - Super-Versatile 2/3rds Power Scaling Kit for Tube Amp

$74.00

SV-TT is a truly universal Power Scaling solution for 100% of guitar and bass amps. SV-TT is .....

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SV2 - Super-Versatile Super-Value Power Scaling Kit for Cathode Bias

$64.00

SV2 + our VCK Voltage Clamp Kit comprise the Power Scaling solution for 99% of all cathode-biased.....

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SV3 - Super-Versatile Tracking High-Voltage Regulator

$54.00

The SV3 Is a Tracking High-voltage Regulator used as part of a Power Scaling solution in tube amp.....

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VCK - Voltage Clamp Kit

$50.00

VCK Voltage Clamp Kit stabilises voltages in a tube preamp, helping to keep tone consistent with .....

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RBX - Raw Bias Auxiliary Supply Kit

$49.00

The RBX provides a high-voltage low-impedance raw bias supply when one is not readily available i.....

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SV84 - Super-Versatile Super-Value Power Scaling Kit for Single-Node

$48.00

Most guitar amplifiers have separate power supply nodes for the the screen and plate of the outpu.....

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VCK-BLT - Pre-assembly of VCK

$40.00

Add VCK-BLT to your VCK order if you would like to receive this kit pre-assembled. The assemb.....

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TBS - Tracking Bias Supply Kit for Fixed-Bias

$28.00

The TBS provides an easy installation of a tracking bias supply for fixed-biased amplifiers. The .....

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RBX-BLT - Pre-assembly of RBX

$20.00

If you would like to receive RBX Raw Bias Auxiliary Supply pre-assembled, add RBX-BLT to your RBX.....

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TREM - Tremolo Level Tracker

$15.00

TREM provides automatic tremolo modulation depth control with Power Scale control adjustment for .....

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PSX - Power Scale Control Switch

$15.00

PSX provides an easy interface between ERK Electronic Relay Kit and multiple Power Scale controls.....

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MOS - Replacement Mosfet + Thermopad

$8.00

Did you damage the mosfet in your London Power kit installation? It always saves time to follow t.....

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LIC - Technology Licence (per unit, for commercial builders and installers)

$5.00

NOTE: Installations and constructions using London Power kits are inherently licenced, and no add.....

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