All Books, Kits & Mods

Master list of all London Power / Power Press Publishing books, kits, mods and downloads.

1U-8 - Single Rack Space Chassis 8" Deep

1U-8 - Single Rack Space Chassis 8" Deep

$110.00

Aluminum rack-mount chassis 1U tall (1.75", 44mm) and 8" deep (203mm). Textured black paint, exce.....

1U-13 - Single Rack Space Chassis 13" deep

1U-13 - Single Rack Space Chassis 13" deep

$130.00

Aluminum rack-mount chassis 1U tall (1.75", 44mm) and 13" deep (330mm). Textured black paint, exc.....

2U-8 - Two Rack Space Chassis 8" deep

2U-8 - Two Rack Space Chassis 8" deep

$140.00

Aluminum rack-mount chassis 2U tall (3.5", 88mm) and 8" deep (203mm). Textured black paint, excep.....

2U-13 - Two Rack Space Chassis 13" deep

2U-13 - Two Rack Space Chassis 13" deep

$160.00

Aluminum rack-mount chassis 2U tall (3.5", 88mm) and 13" deep (330mm). Textured black paint, exce.....

3U-13 - Three Rack Space Chassis 13" deep

3U-13 - Three Rack Space Chassis 13" deep

$180.00

Aluminum rack-mount chassis 3U tall (5.25", 133mm) and 13" deep (330mm). Textured black paint, ex.....

4U-13 - Four Rack Space Chassis 13" deep

4U-13 - Four Rack Space Chassis 13" deep

$210.00

Aluminum rack-mount chassis 4U tall (7", 177mm) and 13" deep (330mm). Textured black paint, excep.....

AMP-10 - 10W Tube Power Amp with Matching Power Supply

AMP-10 - 10W Tube Power Amp with Matching Power Supply

$516.00

AMP-10 is a 10W tube power amp with a matching power supply. AMP-10 is comprised of two eleme.....

AMP-25 - 25W Tube Power Amp with Matching Power Supply

AMP-25 - 25W Tube Power Amp with Matching Power Supply

$564.00

AMP-25 is a 25W tube power amp with a matching power supply. AMP-25 is comprised of two eleme.....

AMP-50 - 50W Tube Power Amp with Matching Power Supply

AMP-50 - 50W Tube Power Amp with Matching Power Supply

$664.00

AMP-50 is a 50W tube power amp with a matching power supply. AMP-50 is comprised of two eleme.....

All 11 Books - Special Deal

All 11 Books - Special Deal

$543.00$490.00

ALL ELEVEN of Kevin O'Connor's audio books! Order all eleven current books by Kevin O'Connor.....

BFX - Best All-Tube Effects Loop Kit

BFX - Best All-Tube Effects Loop Kit

$98.00

BFX can be incorporated into any tube amp, providing a tube solution to active effects loop requi.....

BFX-BLT - Pre-assembly of BFX

BFX-BLT - Pre-assembly of BFX

$40.00

Add BFX-BLT to your order for BFX - Best All-Tube Effects Loop Kit to have the BFX pre-assembled......

BFX-HP - PCB + Tube Socket only

BFX-HP - PCB + Tube Socket only

$42.00

BFX-HP is the PCB plus tube socket for the BFX - Best All-tube Effects Loop. .....

BFX-PCB - PCB only

BFX-PCB - PCB only

$38.00

BFX is the Best All-Tube Effects Loop, and BFX-PCB is the printed circuit board and kit notes for.....

BL20 - "Baby" Leach Power Amp Design

BL20 - "Baby" Leach Power Amp Design

$4.00

BL20 is the "Baby" Leach amp. Where most similar designs are aimed at 100W+, BL20 is targeted for.....

BLQE - "Baby" Leach w/ Quad-Comp EF Output Design

BLQE - "Baby" Leach w/ Quad-Comp EF Output Design

$4.00

BLQE is the "Baby" Leach power amp with a Bryston-style Quad-Complementary output stage wired for.....

BMK2 - Bias Mod Kit for 2 Tubes

BMK2 - Bias Mod Kit for 2 Tubes

$24.00

Bias Mod Kits allow easy checking of output tube bias currents, regardless of whether those tubes.....

BMK4 - Bias Mod Kit for 4 Tubes

BMK4 - Bias Mod Kit for 4 Tubes

$35.00

Bias Mod Kits allow easy checking of output tube bias currents, regardless of whether those tubes.....

BMK6 - Bias Mod Kit for 6 Tubes

BMK6 - Bias Mod Kit for 6 Tubes

$44.00

Bias Mod Kits allow easy checking of output tube bias currents, regardless of whether those tubes.....

BMK8 - Bias Mod Kit for 8 Tubes

BMK8 - Bias Mod Kit for 8 Tubes

$53.00

Bias Mod Kits allow easy checking of output tube bias currents, regardless of whether those tubes.....

CARD - Circuit Card Refill

CARD - Circuit Card Refill

$7.00

6" x 12" x 1/16" thick glass-epoxy card stock. Rigid material - can be cut to size by the user. .....

CCK - Circuit Card Kit

CCK - Circuit Card Kit

$62.00

200 eyelets one piece of 6" x 12" x 1/16" thick glass-epoxy card stock hand staki.....

CH-8 - Insert Panel for 8" Deep Chassis

CH-8 - Insert Panel for 8" Deep Chassis

$40.00

This 6" (152mm) aluminum sub-chassis can be mounted inside an 8" deep (203mm) or deeper chassis, .....

CH-13 - Insert Panel for 13" Deep Chassis

CH-13 - Insert Panel for 13" Deep Chassis

$50.00

This 11" (280mm) aluminum sub-chassis can be mounted inside a 13" deep (330mm) or deeper chassis,.....

D-PRE - Mini-Marshmallow Preamp Kit

D-PRE - Mini-Marshmallow Preamp Kit

$128.00

D-PRE is based on London Power's Mini-Marshmallow amp, which was a tribute to Howard Dumble. The .....

About London Power

London Power was founded in 1990 by Kevin O'Connor, after two decades of research into innovative audio amplification techniques. Kevin is an audio designer, author and speaker, known for his proprietary methodology called Power Scaling, and for his eleven books on audio subjects. Whether you seek amps, kits or information, you'll find useful answers here on not just the "how" but the "why" of audio amplifier design. Please enjoy the information on this site, and don't hesitate to contact us with questions.

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