UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - The h-field transanalyser

Argus25 · 24th Feb 2018, 10:23 am

I built this device to test and align vintage AM broadcast band transistor radios.

The idea is to have one compact piece of kit to do it all, without needing an general laboratory RF generator with accurate counter and a scope. Also to provide a system to assess the transistor radio's sensitivity. Three radios have been measured and their data added to the article.

I have uploaded the article on it to my website:

http://worldphaco.com/uploads/The__H...nsanalyser.pdf

I have attached some photos of the unit and the block diagram and the attenuator, which is one of the more interesting parts of it. The reasoning behind the design of it all is explained in the article.

24th Feb 2018, 10:23 am	#1
Argus25 No Longer a Member Join Date: Oct 2016 Location: Maroochydore, Queensland, Australia. Posts: 2,679	The h-field transanalyser I built this device to test and align vintage AM broadcast band transistor radios. The idea is to have one compact piece of kit to do it all, without needing an general laboratory RF generator with accurate counter and a scope. Also to provide a system to assess the transistor radio's sensitivity. Three radios have been measured and their data added to the article. I have uploaded the article on it to my website: http://worldphaco.com/uploads/The__H...nsanalyser.pdf I have attached some photos of the unit and the block diagram and the attenuator, which is one of the more interesting parts of it. The reasoning behind the design of it all is explained in the article. Attached Thumbnails