In this video I will show a small master class on remaking existing pointer measuring devices into devices for measuring currents and voltages in the required ranges. I will draw the scales of the devices using a simple program for drawing scales of pointer devices. *** You can help in the development of the Channel: Yandex Money: https://yoomoney.ru/to/410013004521132 Web Money: Z546631268395 This makes it possible to purchase the necessary electronic components for shooting videos according to your requests. Thank you for your help, friends! *** Playlists: "Push-pull tube amplifiers" • Push-pull PP tube amplifier. Sche... "Pre-Audio Amplifiers" • Tube Phase Inverters. Part 5. The scale drawing program is taken from: https://forum.cxem.net/index.php?/top... Scale drawing program Author: Starichok (forum.cxem.net) Link to video materials: https://drive.google.com/drive/folder... 00:00 Unknown Physics Channel - welcomes you! 00:15 How to remake pointer measuring instruments? 00:20 How to disassemble pointer measuring instruments. 01:03 Disassembled M42101 device. 01:35 Disassembled M2001 device. 02:06 Disassembled M4203 device. 02:25 Table of radio tubes and their parameters. 03:11 Summary photo of scales of devices being remade. 03:37 "Scale 6.0" program. 07:26 Prepared scales for devices. 08:20 Features of assembling pointer measuring instruments. 10:02 Equivalent circuit of a pointer measuring instrument. 10:46 Value of resistance of the coil of the instrument. 11:10 Circuit and technique for measuring the value of the current of full deflection of the pointer of the instrument. 11:53 Practical measurement of the value of the current of full deflection of the pointer of the instrument. 14:00 Circuit and technique for measuring the value of resistance of the coil of the pointer instrument. 15:28 Practical measurement of the value of resistance of the coil of the pointer instrument. 19:53 Calculation of shunts for pointer instruments is the topic of the next video. #ammeter #voltmeter #pointer_instrument Videos, in the form of short stories and stories about Physics in the world around us, are released every week. If you liked the story - like and subscribe to the channel so as not to miss the continuation! QUESTIONS can be asked in the comments to any video, on social networks and by e-mail of the channel: [email protected] I answer all SPECIFIC questions. I hope that your questions and joint answers will help make the channel "Unknown Physics" 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