LICENSED POWER SCALING BUILDERS
These amplifier manufacturers have entered a licensing agreement with London Power, and are authorized to incorporate Power Scaling into their amplifier products, and to use the term "Power Scale" and "Power Scaling."
Parksville, BC V9P 2G4
250-954-2292 10am-5pm M-F Pacific Time
Mark Stephenson was the first licensed-PS amp builder. His line ranges from his Power Scaled 1W Stage Hog to 40W heads, and pedals like the FMD booster and an amp switcher.
John Suhr (SUHR GUITARS)
Lake Elsinore, California
www.suhrguitars.com (951) 471-2334 (Tues-Friday 9-5)
The Suhr Badger amp has been exciting players for quite a while - check it out.
Manny Bettencourt is a knowledgeable and friendly East-Coast amp builder who can repair, modify or build you an amp at a reasonable price. He is also a Power Scale installer.
San Jose, CA
Val King offers single-ended and push-pull amps of moderate power and Power Scaling.
Can be found on Facebook: Reinhardt Amps
Bob Reinhardt builds high-power stage amps with Power Scaling.
North Highlands, CA
EUROPE - UK
Tony at MasterTone Amplifiers provides an amp modification service for most single-ended amps including Valve Juniors, Fender Champs and Blackheart amps and sells fully modified amps direct from his website and via eBay.
Martin Whelan at MJW Amplification in North Derbyshire is your source for service, modification and design of tube sound equipment, and for Power Scaling builds/installations.
Andy Dokken modifies Valve Jr amps, adding Power Scaling and other mods. He sells only through eBay.
Offers a kit/prebuilt model with stepped Power Scaling - a modest 10dB loudness reduction at the lowest setting.
EUROPE - Sweden
Our friend Ola Lehnert produces wonderful Lehnert combo amps with Power Scaling - built with the player in mind. He's also a Power Scaling installer.
AUTHORIZED POWER SCALING INSTALLERS
Looking for someone to install Power Scaling in your amp? Here is a list of recommended Power Scaling installers.
Cory Davies (Davies Amplification)
Brian Ohman (Tube Amp Technologies)
St. John's, Newfoundland
Mike Putnam (Putnam Guitars Inc.)
Manny Bettencourt (Circuitrix)
NW Chicago, IL
Friendly, honest, professional mods and Power Scale installation
Val King (King Amplification)
John Suhr (Suhr Guitars)
Albert Rivera (ACR Amplification)
Frank Lamarra (Amp Lounge)
Europe - UK
West Midlands, Great Britain
Martin Whelan (MJW Amplification)
Tony Lovett (MasterTone Amplifiers)
Andy Dokken (Rat Amps)
EUROPE - The Netherlands
Ed Thoen (Ed's Custom Shop)
Maarssen, The Netherlands
EUROPE - Sweden
Ola Lehnert (Lehnert Amps)
Martin Kuhn (Kuhnamps)
Kalle Norman (LH Musik & Audio AB)