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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
Q&A regarding Kevin O'Connor's "The Ultimate Tone" book series
20 152 Rrecommended Soldering Ir...
01-27-2022, 12:46 PM
by ZeusMC
Power Scaling
Discussion of London Power's Power Scaling methodology
5 28 SV1, SV2, SV-TT update
07-12-2021, 02:20 PM
by K O'Connor
PCB Design
7 54 Upgrading Eagle version
08-20-2021, 12:04 PM
by K O'Connor
Power Supplies
13 60 Valve Power Transformer t...
04-17-2022, 07:25 PM
by makinrose
Preamp Mods & Design
23 182 Mods to Preamp with 7025/...
07-20-2022, 07:44 PM
by Murrayatuptown
Sag & Sustain
3 13 Applying a SUS control in...
05-30-2020, 04:38 PM
by makinrose
5 30 Random Access Footswitch
10-19-2021, 08:39 PM
by K O'Connor
7 50 Correct Size Knock Out Ho...
02-02-2022, 07:24 PM
by ZeusMC
Personal Projects
21 174 "Cigar Box" Amp
07-20-2022, 03:29 PM
by K O'Connor
Test & Measurement
Testing your project and test equipment selection
15 43 A Safer Test Probe
01-27-2022, 01:48 PM
by nauta
New Member Introductions
You are welcome to let forum members know more about you! We're glad you are here.
19 40 Hello - not sure where to...
04-11-2022, 11:18 AM
by K O'Connor

Forum Threads Posts Last Post
London Power Amps & Gear
0 0
London Power Kits & Mods
10 42 S-PRE-2
08-29-2021, 06:40 PM
by K O'Connor
Gear for Sale by Forum Members
4 6 Wanted Merlin Blencowes B...
08-03-2021, 05:48 AM
by ZeusMC
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 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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