DG’s Practical Notes, E#3 Heathkit tube checker IT-21, 1960 скачать в хорошем качестве

DG’s Practical Notes, E#3 Heathkit tube checker IT-21, 1960

DG’s Practical Notes © 2021-2022 Daniele Giacomini, appunti2@gmail.com   / appunti2   https://sites.google.com/view/daniele... https://daniele-giacomini.blogspot.co... https://archive.org/download/dgs-prac... This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International license and is published with NO GUARANTEE AT ALL, OF ANY KIND. Full documentation of the restoration appearing in these videos is available in traditional form at: https://sites.google.com/view/daniele... https://daniele-giacomini.blogspot.co... The full project is available at Internet Archive: https://archive.org/download/dgs-prac... This work is published with NO GUARANTEE AT ALL, OF ANY KIND. ======== Content of this video ======== (00:00) - Front cover (00:06) - ⚠ Warning: (00:32) - Table of context (00:42) - Introduction (02:14) - Initial troubleshooting (06:47) - If the selenium rectifier is replaced (07:36) - Some resistor values should be checked carefully (08:10) - Schematic diagram and operation modes (10:10) - Accessing and changing the pilot lamps (10:49) - Accessing the meter (16:55) - Electrostatics (17:49) - Testing tubes (22:13) - ⚠ What could go wrong testing tubes (24:34) - Building a tube checker from scratch (26:55) - Written documentation coming along with this video (28:49) - Back cover ================================== Tags: vacuum tubes, antique radios, old radios, vintage radios, old electronics, vintage electronics, vacuum tube equipment