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The Ultimate Tone Community
Forums on designing and building audio amplifiers and accessories.
Forum Threads Posts Last Post
TUT Q&A
Q&A regarding Kevin O'Connor's "The Ultimate Tone" book series
8 31 Question about the Sigma ...
01-05-2019, 12:33 AM
by makinrose
Power Scaling
Discussion of London Power's Power Scaling methodology
2 20 Power Scaling WORKS!
12-18-2018, 05:58 PM
by soundmasterg
PCB Design
5 40 PCB design for guitar amp...
10-09-2018, 03:03 PM
by K O'Connor
Power Supplies
3 10 Power Supply Caps Replace...
12-18-2018, 01:38 PM
by makinrose
Preamp Mods & Design
7 44 Master volumes
11-27-2018, 07:52 PM
by K O'Connor
Sag & Sustain
1 1 What is sag?
08-22-2018, 05:07 PM
by K O'Connor
Switching
2 11 Help with Relay Switching...
02-10-2019, 01:51 AM
by makinrose
Wiring
3 21 Wire choice
02-09-2019, 01:25 PM
by makinrose
Personal Projects
6 71 Silverface Bandmaster Rev...
Yesterday, 12:57 AM
by K O'Connor
Test & Measurement
Testing your project and test equipment selection
10 29 TEST WITHOUT TUBES
01-02-2019, 01:50 PM
by K O'Connor
New Member Introductions
You are welcome to let forum members know more about you! We're glad you are here.
8 11 New member
Yesterday, 12:44 AM
by makinrose

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London Power Amps & Gear
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London Power Kits & Mods
4 7 London Power - Power Scal...
11-04-2018, 05:36 PM
by makinrose
Gear for Sale by Forum Members
3 3 Amp Giveaway - V2 Vibe
12-17-2018, 03:15 AM
by jmcd
Vendor Info
Post here if you sell parts or services of interest to audio builders/hobbyists
1 1 Power Scaling Builders an...
10-26-2018, 05:49 PM
by London Power
Miscellaneous for Sale
Selling roosters, hammocks or shoe-horns? Post them here.
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Come in where it's warm!
A warm welcome to those interested in tube and hi-fi audio! Fans of Kevin O'Connor's The Ultimate Tone (TUT) book series form a part of our population. Kevin O'Connor is the creator of the popular Power Scaling methodology for amplifiers.
Please remember these three principles: respect, sharing, community.
Not familiar with The Ultimate Tone book series? See discussion topics, or click here to visit London Power/Power Press Publishing.

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