This video continues the series about audio output transformers. I will tell you in detail about one method of taking the main characteristics of a transformer and about determining the suitability of a specific transformer steel for assembling an audio output transformer. A series of tests, with the help of which the characteristics of the transformer are determined, will be carried out on nine different transformers. Based on the test results, it is easy to determine the suitability of a specific transformer for an audio transformer. For those who want to translate the text of the video into other languages, a file with the full text of the video is attached - for substitution in an electronic translator. The mail of the Channel "Unknown Physics" has changed. Now you can write letters to the address [email protected] (the old mail [email protected] also works - where it is available!) *** You can help in the development of the Channel: Yandex Money: https://yoomoney.ru/to/410013004521132 VISA (Russia) 4048-0250-0094-9167 This makes it possible to purchase the necessary electronic components for shooting videos according to your requests. Thank you for your help, friends! *** Link to video materials: https://drive.google.com/drive/folder... Links to videos: "Winding the output SE audio transformer. Measuring the characteristics of the output transformer" • Winding the output SE transformer ... "Tube amplifier. Transformer calculation." • Tube amplifier. Transformer calculation ... "Measuring the characteristics of the output transformer. Tube amplifier" • Measuring the characteristics of the output tra ... "How to check a transformer. Computer diagnostics of a transformer. Transformer hysteresis» • How to check a transformer. Computer... «Push-pull PP tube amplifier. Output transformer test drive» • Push-pull PP tube amplifier. Te... «Tests of audio output transformers» • Tests of audio output transformers. «Output transformer for a tube amplifier» • Output transformer for a tube ... «Test of the FX-AUDIO TUBE P1 amplifier» • Test of the FX AUDIO TUBE P1 amplifier 00:00 Welcome to the «Unknown Physics» channel! 00:06 I continue the series of videos about audio output transformers. 00:28 General system of formulas for calculating SE of an audio transformer. 01:01 The main characteristic of a transformer core is hysteresis. 01:37 Description of transformers for testing. 05:00 Table of transformer characteristics. 05:10 Measurements of resistance and inductance of TVZ windings. 05:49 Geometrical dimensions of TVZ. 06:04 TVZ coil placement. 06:41 Overall power of the transformer. 07:44 Filling in the initial data in the table of transformer characteristics. 08:19 Verification of readings of Chinese devices. 09:18 Diagram and measurement of transformer winding inductances. 11:55 Filling in the obtained data in the table. 12:22 PP curve of the audio transformer. 12:54 Determining the number of turns of the TVZ windings. 16:38 Table of measured EMF of the windings. 17:33 Formulas for an ideal transformer. 18:08 Table of summary characteristics of TVZ. 18:31 Diagram for removing the hysteresis loop. 19:56 Removing hysteresis curves for transformers. 21:07 What to do with a Chinese PP transformer? 22:07 Removing the hysteresis of a Chinese PP transformer. 24:15 Determining the number of winding turns using hysteresis data. 25:15 Hysteresis curves of all tested transformers. 28:39 Effect of non-magnetic gap in the core. 29:37 Signal distortion by a transformer. 30:20 The purpose of this video. #Sound_Transformer #Determining_TVZ_Characteristics #Hysteresis Videos in the form of short stories and tales about Physics in the world around us are released every week. If you liked the story, like it and subscribe to the channel so you don't miss the sequel! QUESTIONS can be asked in the comments to any video, on social networks and by e-mail to the channel: [email protected] I answer all SPECIFIC questions. I hope that your questions and joint answers will help make the "Unknown Physics" channel more interesting! *********************************************************** The channel has many playlists with videos about birds and animals, about HANDMADE, DIY, HUMOR, entertaining PHYSICS, stories about TRAVELING, YUMMY, TRICKS, how to make a cartoon and much more... You will definitely find a video according to your interests! The CHANNEL NAVIGATOR will help you navigate the channel. LINKS to the channel's videos are posted on personal pages in social networks and in groups: Add yourself as a FRIEND! (When adding, PLEASE write - where are you from and on what issue) e-mail: [email protected] VKontakte: http://vk.com/afon2015 Odnoklassniki: https://goo.gl/VdSsCY Twitter: / afanasy83 Facebook: / afanasy83 Skype: afanasy83