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Tube Amp Community (Hi-fi too!)
Forums on designing and building tube guitar amplifiers, hi-fi amps and accessories.
Forum Threads Posts Last Post
TUT Q&A
Q&A regarding Kevin O'Connor's "The Ultimate Tone" book series
14 84 Tube Microphone Pre-amp I...
01-07-2020, 02:01 PM
by K O'Connor
Power Scaling
Discussion of London Power's Power Scaling methodology
4 27 Question about filament t...
02-07-2020, 05:17 PM
by makinrose
PCB Design
6 45 Schematic management
08-07-2019, 01:49 PM
by K O'Connor
Power Supplies
5 21 PSU testing
11-27-2019, 06:32 PM
by FormyxAmps
Preamp Mods & Design
9 65 YBA-1 bridged T circuit
01-19-2020, 07:00 PM
by K O'Connor
Sag & Sustain
2 8 Question about Applying S...
05-13-2019, 01:30 AM
by makinrose
Switching
2 11 Help with Relay Switching...
02-10-2019, 01:51 AM
by makinrose
Wiring
5 34 Hammond chassis mounting ...
12-04-2019, 12:55 PM
by makinrose
Personal Projects
9 102 10W amp
01-31-2020, 03:25 PM
by enriqueperez
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.
11 21 New kid
12-01-2019, 01:33 PM
by King TUT

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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.
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Come in where it's warm!
A warm welcome to tube amp modding fans and those interested in hi-fi audio! Readers 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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