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Preamp Mods & Design
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Go to first unread post 6v6 preamp
mooreamps, 06-26-2023, 08:17 PM
 4 83 06-28-2023, 05:15 PM
Last Post: mooreamps
   
Go to first unread post Preamp mods
K O'Connor, 08-22-2018, 04:25 PM
 16 5,159 04-27-2023, 05:20 PM
Last Post: K O'Connor
   
Go to first unread post Load Line Assistance Needed
dtbradio, 11-10-2022, 10:57 AM
 2 84 11-11-2022, 05:47 PM
Last Post: dtbradio
   
5 3,314 07-20-2022, 07:44 PM
Last Post: Murrayatuptown
    2 212 01-30-2022, 08:07 PM
Last Post: K O'Connor
   
Go to first unread post Tremolo Design Question
makinrose, 04-07-2020, 05:04 PM
 7 2,703 01-28-2022, 03:03 PM
Last Post: makinrose
   
Go to first unread post Submini tubes
SGillespie, 12-24-2021, 12:25 PM
 7 512 01-03-2022, 09:22 PM
Last Post: nauta
    4 1,217 08-02-2021, 07:42 PM
Last Post: makinrose
   
Go to first unread post Power Resistors in kits
Strelok, 06-02-2021, 04:53 AM
 5 1,414 06-04-2021, 08:53 PM
Last Post: makinrose
   
Go to first unread post FX Loop Bypass - Signal Loss
NGW, 04-25-2021, 04:56 AM
 2 1,497 04-25-2021, 01:19 PM
Last Post: K O'Connor
   
Go to first unread post Stereo Reverb as in TUT2
Strelok, 03-28-2021, 10:32 AM
 10 2,468 04-20-2021, 12:43 PM
Last Post: K O'Connor
   
Go to first unread post Not So Subtle Sag
Strelok, 04-15-2021, 08:24 AM
 2 1,096 04-16-2021, 06:46 AM
Last Post: Strelok
   
Go to first unread post Which cable?
Strelok, 04-12-2021, 02:13 PM
 4 1,290 04-13-2021, 02:35 PM
Last Post: Strelok
    13 3,311 03-19-2021, 07:33 AM
Last Post: Strelok
    5 1,689 03-04-2021, 02:54 PM
Last Post: K O'Connor
   
Go to first unread post Distorting reverb tube (Pages: 1 2 )
Tomislaw, 06-26-2020, 03:28 PM
 24 7,946 09-05-2020, 05:27 PM
Last Post: Tomislaw
   
Go to first unread post fx loops
Adam, 08-19-2020, 11:15 AM
 2 2,026 08-21-2020, 10:26 AM
Last Post: Adam
   
Go to first unread post BYPASSING A GAIN STAGE - QUERY
NGW, 09-11-2019, 12:45 AM
 13 6,415 03-09-2020, 12:21 PM
Last Post: K O'Connor
   
Go to first unread post YBA-1 bridged T circuit
jmcd, 01-05-2020, 04:58 PM
 9 4,099 01-19-2020, 07:00 PM
Last Post: K O'Connor
   
Go to first unread post Master volumes
jmcd, 11-24-2018, 03:11 PM
 10 7,254 11-27-2018, 07:52 PM
Last Post: K O'Connor
    3 3,249 11-18-2018, 09:36 AM
Last Post: Tomislaw
   
Go to first unread post pickup noise
jmcd, 11-11-2018, 05:01 PM
 5 4,246 11-14-2018, 05:41 PM
Last Post: K O'Connor
   
Go to first unread post Grid leak biasing
Tomislaw, 11-05-2018, 04:06 PM
 11 8,571 11-11-2018, 07:02 PM
Last Post: Tomislaw
   
Go to first unread post zener diode bounding circuits
jmcd, 11-08-2018, 02:18 AM
 3 3,246 11-09-2018, 12:46 AM
Last Post: K O'Connor
   
Go to first unread post Dual-Drive designs
jmcd, 10-31-2018, 01:23 AM
 2 2,928 10-31-2018, 12:22 PM
Last Post: jmcd


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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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