UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - MuTek Pre-amps for the FT290R

Jon_G4MDC · 15th Oct 2018, 7:57 pm

I think that is pretty close to the nub of the problem.

It just ends up surprising me from time to time. Obviously the lids with their snap on
buttons do not do very much to screen the front end since they are painted and approaching lambda/4 on a side.

It wouldn't fair well in a shack that was hot with 2m RF from a computer or such.

Some ATU manufacturers (one is quite well known- I mention no names) could take some lessons from Chris about spacing around HighQ inductors...

15th Oct 2018, 7:57 pm	#12
Jon_G4MDC Nonode Join Date: Nov 2015 Location: Welwyn Garden City, Hertfordshire, UK. Posts: 2,015	Re: MuTek Pre-amps for the FT290R I think that is pretty close to the nub of the problem. It just ends up surprising me from time to time. Obviously the lids with their snap on buttons do not do very much to screen the front end since they are painted and approaching lambda/4 on a side. It wouldn't fair well in a shack that was hot with 2m RF from a computer or such. Some ATU manufacturers (one is quite well known- I mention no names) could take some lessons from Chris about spacing around HighQ inductors...