UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Full-Range IF Selectivity; The Hammarlund Variable Crystal Filter

ms660 · 27th Dec 2022, 3:37 pm

A link to the QST article (QST Dec. 1938, mag. page 33):

https://worldradiohistory.com/Archiv...ST-1938-12.pdf

Lawrence.

27th Dec 2022, 3:37 pm	#23
ms660 Dekatron Join Date: Apr 2011 Location: Cornwall, UK. Posts: 13,454	Re: Full-Range IF Selectivity; The Hammarlund Variable Crystal Filter A link to the QST article (QST Dec. 1938, mag. page 33): https://worldradiohistory.com/Archiv...ST-1938-12.pdf Lawrence.