Tube Amp Forum: The Ultimate Tone

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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	33	230	Output Transformer Primar... 04-11-2025, 04:48 PM by K O'Connor
	Power Scaling Discussion of London Power's Power Scaling methodology	11	65	Power Scale pot sweep 04-16-2025, 12:35 PM by K O'Connor
	PCB Design	7	58	PCB layout guidelines for... Today, 12:36 AM by K O'Connor
	Power Supplies	23	121	Reverse PT for auxiliary ... 04-04-2025, 12:58 PM by K O'Connor
	Power Amps Design and modification of audio power amps	10	34	Toroidal PT and OT Suppli... 03-28-2025, 02:49 PM by K O'Connor
	Preamp Mods & Design	29	220	Friedman/Suhr PPIMV 02-18-2025, 06:04 AM by physics
	Sag & Sustain	3	14	What is sag? 12-31-2023, 08:58 PM by K O'Connor
	Switching	6	40	On/Off switching for pair... 02-19-2025, 05:50 PM by K O'Connor
	Wiring	11	94	Wiring and PCBs 09-12-2024, 11:30 AM by Sherlok Ohms
	Personal Projects	32	380	Compressor 03-28-2025, 12:32 PM by K O'Connor
	Test & Measurement Testing your project and test equipment selection	18	60	Oscilloscopes for Audio 05-31-2024, 08:20 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.	33	87	G'day all. 08-18-2024, 09:28 AM by Resistor001

Marketplace & Products
Forum		Threads	Posts	Last Post
	London Power Amps & Gear	0	0	Never
	London Power Kits & Mods	15	125	MICRO Cigar Box amplifier 08-22-2024, 11:43 AM by K O'Connor
	Gear for Sale by Forum Members	5	13	Wanted Merlin Blencowes B... 08-25-2024, 07:06 AM by Resistor001
	Vendor Info Post here if you sell parts or services of interest to audio builders/hobbyists	2	4	Speaker Repair Pros testi... 07-19-2023, 08:14 PM by physics
	Miscellaneous for Sale Selling roosters, hammocks or shoe-horns? Post them here.	0	0	Never

Recording & Playback Methods for recording musical performances and playing them back
Forum		Threads	Posts	Last Post
	Recording Methods How to record a live performance or individual instruments	3	20	PZM Experiments 02-25-2025, 12:09 AM by physics
	Headphones for Music Playback Discuss the types of headphones and their merits for music playback	1	4	Headphone selection 09-07-2023, 02:19 PM by K O'Connor
	Playback of Recorded Music Types of playback systems for listening to music	1	1	Ideal playback system 08-31-2023, 12:45 PM by K O'Connor
	Specialized Headphone Amplifiers Dedicated headphone amplifiers for music playback	3	3	Headphone amps for dynami... 08-31-2023, 05:28 PM by K O'Connor
	Stereo Playback Systems for Music Components of a stereo music playback system	1	1	The rule is: There are no... 08-31-2023, 05:58 PM by K O'Connor

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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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