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The Ultimate Tone Community
Forums on designing and building audio amplifiers and accessories.
Forum Threads Posts Last Post
Q&A regarding Kevin O'Connor's "The Ultimate Tone" book series
12 77 Fixed to Cathode Bias swi...
10-14-2019, 07:27 PM
by liquidair
Power Scaling
Discussion of London Power's Power Scaling methodology
3 24 Heat management with Powe...
04-02-2019, 09:08 PM
by K O'Connor
PCB Design
6 45 Schematic management
08-07-2019, 01:49 PM
by K O'Connor
Power Supplies
4 14 power supply to separate ...
03-11-2019, 09:38 PM
by K O'Connor
Preamp Mods & Design
09-17-2019, 10:44 AM
by NGW
Sag & Sustain
2 8 Question about Applying S...
05-13-2019, 01:30 AM
by makinrose
2 11 Help with Relay Switching...
02-10-2019, 01:51 AM
by makinrose
4 29 Pots! What brands are go...
02-28-2019, 12:03 PM
by jmcd
Personal Projects
8 89 London Power 3 channels a...
04-28-2019, 02:16 PM
by jmcd
Test & Measurement
Testing your project and test equipment selection
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.
9 13 New kid
05-21-2019, 05:26 PM
by FormyxAmps

Forum Threads Posts Last Post
London Power Amps & Gear
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London Power Kits & Mods
5 13 London Power Best All-Tub...
03-17-2019, 08:56 PM
by Adam
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.
0 0

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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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