DG’s Practical Notes, R#14 Hammarlund HQ 100A, 1959-1962
Channel: Daniele Giacomini
Date: 2023-10-31

DG’s Practical Notes
© 2021-2023 Daniele Giacomini, appunti2@gmail.com
https://linkedin.com/in/appunti2/
https://sites.google.com/view/daniele-giacomini/dgpn
https://daniele-giacomini.blogspot.com/p/dgpn.html 
https://archive.org/download/dgs-practical-notes

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 content appearing in these videos is available in traditional form at:
https://sites.google.com/view/daniele-giacomini/dgpn
https://daniele-giacomini.blogspot.com/p/dgpn.html 

The full project is available at Internet Archive: 
https://archive.org/download/dgs-practical-notes

This work is published with NO GUARANTEE AT ALL, OF ANY KIND.

======== Content of this video ========
(00:00) - Front cover
(00:10) - ⚠ Warning    
(00:20) - Table of context
(00:40) - Introduction
(03:48) - Original documentation and schematics
(05:09) - Removing the extras and verifying the progress
(07:28) - Power supply (safety)
(10:08) - Current limiting light bulbs
(11:14) - Variable capacitor short and stator screws
(12:08) - Right tools for the alignment
(13:53) - Restoration of the I.F. transformers
(26:58) - A new Function Switch
(27:43) - Proper I.F. alignment
(30:03) - Q Multiplier
(31:42) - BFO alignment
(32:56) - S-Meter zero adjustment
(33:43) - R.F. alignment
(36:27) - Dials and front-panel
(37:35) - Metal cabinet and exposed chassis
(38:42) - Front panel and 3D labels
(40:09) - Casualties and screws
(40:25) - Reveal
(50:58) - A story, if you like it
(55:03) - Back cover
==================================

Tags: vacuum tubes, antique radios, old radios, vintage radios, old electronics, vintage electronics, vacuum tube equipment