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Mark this forum read Power Scaling Thread / Author Replies Views Last Post [asc]     Alternatives to Power Scaling? K O'Connor, 12-26-2025, 09:03 PM 2 116 12-27-2025, 01:16 PM Last Post: K O'Connor     Selecting Speaker For Low Volumes?? makinrose, 10-19-2025, 09:21 PM 2 420 12-14-2025, 05:04 PM Last Post: makinrose     Applicability of RBX Raw Bias Auxiliary Supply K O'Connor, 12-11-2025, 02:34 PM 0 113 12-11-2025, 02:34 PM Last Post: K O'Connor     Precision Power Scale Circuit K O'Connor, 12-11-2025, 01:53 PM 0 108 12-11-2025, 01:53 PM Last Post: K O'Connor     Power Scale pot sweep K O'Connor, 02-05-2024, 02:28 PM 3 1,803 04-16-2025, 12:35 PM Last Post: K O'Connor     SV1 and SV2 assembly K O'Connor, 05-28-2024, 12:40 PM 0 847 05-28-2024, 12:40 PM Last Post: K O'Connor     Upgrading the VHT "WATTS" Circuit Looselectron, 02-01-2024, 05:48 AM 14 3,831 02-19-2024, 12:45 PM Last Post: K O'Connor     Single-knob Power Scaling K O'Connor, 04-25-2023, 12:06 AM 10 3,413 02-13-2024, 02:06 PM Last Post: K O'Connor     Field-coil speakers with variable FC K O'Connor, 04-25-2023, 01:10 AM 1 1,061 04-26-2023, 08:58 PM Last Post: makinrose     Variacs and other things K O'Connor, 04-25-2023, 12:26 AM 0 573 04-25-2023, 12:26 AM Last Post: K O'Connor     SV1, SV2, SV-TT update K O'Connor, 07-12-2021, 02:20 PM 3 1,914 04-24-2023, 11:50 PM Last Post: K O'Connor     Question about filament transformer for bias supply in a Power Scaled Amp makinrose, 02-06-2020, 02:05 PM 2 4,203 02-07-2020, 05:17 PM Last Post: makinrose     Heat management with Power Scaling?? makinrose, 04-02-2019, 08:06 PM 1 3,298 04-02-2019, 09:08 PM Last Post: K O'Connor     Power Scaling WORKS! King TUT, 08-22-2018, 03:54 PM 19 16,256 02-20-2019, 12:35 PM Last Post: K O'Connor     Thermal grease? K O'Connor, 10-17-2018, 10:55 PM 1 2,951 10-20-2018, 12:07 AM Last Post: makinrose Sort by: Subject Sort by: Last Post Sort by: Author Sort by: Creation Time Sort by: Replies Sort by: Views Order: Ascending Order: Descending From: Today From: 5 Days Ago From: 10 Days Ago From: 20 Days Ago From: 50 Days Ago From: 75 Days Ago From: 100 Days Ago From: The Last Year From: The Beginning   New Posts   Hot Thread (New)   Hot Thread (No New)   No New Posts   Contains Posts by You   Closed Thread Search this Forum: Forum Jump: Private Messages User Control Panel Who's Online Search Forum Home Tube Amp Community (Hi-fi too!) -- TUT Q&A -- Power Scaling -- PCB Design -- Power Supplies -- Power Amps -- Preamp Mods & Design -- Sag & Sustain -- Switching -- Wiring -- Personal Projects -- Test & Measurement -- New Member Introductions Marketplace & Products -- London Power Amps & Gear -- London Power Kits & Mods -- Gear for Sale by Forum Members -- Vendor Info -- Miscellaneous for Sale Recording & Playback -- Recording Methods -- Headphones for Music Playback -- Playback of Recorded Music -- Specialized Headphone Amplifiers -- Stereo Playback Systems for Music

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. Tube Amp Forum Hosted by London Power