Theory & Design

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Topics	Statistics	Last Post
Sticky: making sure I understand OT secondary ground by dmartn149 Started by dmartn149, 08-31-2019, 08:08 PM	9 responses 2,888 views 0 likes	Last Post by sparkies 02-10-2024, 03:47 PM
Tilt-leg amps - winner or loser? by radioguy Started by radioguy, 10-15-2013, 02:05 AM	21 responses 5,894 views 0 likes	Last Post by Paleo Pete 10-23-2013, 02:01 PM
Bletchley Park by trem Started by trem, 10-07-2013, 11:31 PM	9 responses 1,954 views 0 likes	Last Post by trem 10-21-2013, 02:43 AM
OT relationship between tube impedance and speaker impedance by 5thumbs Started by 5thumbs, 10-03-2013, 05:22 AM	13 responses 2,658 views 0 likes	Last Post by bob p 10-19-2013, 02:46 AM
Help with Fault finding on valve amps by blindboybenton Started by blindboybenton, 10-16-2013, 09:05 PM	15 responses 1,781 views 0 likes	Last Post by trobbins 10-17-2013, 11:42 PM
Tube tester in your shop? by Randall Started by Randall, 10-15-2013, 09:21 PM	3 responses 1,066 views 0 likes	Last Post by trevorus 10-15-2013, 10:46 PM
Been thinking about a simplified attenuator, wonder if anyone has tried it by imaradiostar Started by imaradiostar, 10-15-2013, 05:16 AM	9 responses 1,971 views 0 likes	Last Post by imaradiostar 10-15-2013, 05:06 PM
cathode bias vibroverb style amp. need help for choke and cathode math by pietro_moog Started by pietro_moog, 10-13-2013, 11:24 PM	16 responses 4,827 views 0 likes	Last Post by pietro_moog 10-15-2013, 12:31 PM
Designing around PT tolerances by number11 Started by number11, 10-14-2013, 04:31 AM	1 response 956 views 0 likes	Last Post by loudthud 10-14-2013, 03:44 PM
Correcting speaker resonance without removing output stage distortions by anson Started by anson, 09-29-2013, 07:16 AM	12 responses 1,914 views 0 likes	Last Post by Steve Conner 10-14-2013, 07:10 AM
12AU7 as cathodyne phase inverter by laterider Started by laterider, 10-06-2013, 11:57 PM	7 responses 5,565 views 0 likes	Last Post by laterider 10-12-2013, 01:19 AM