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For temporary files, use the file folder created for that. Makes it much easier for the mods. /g/loopantennas/files/111AAATemporaryFiles If it is just a graphic, consider uploading

A reminder, files posted without description or adequate description will be deleted. Think about someone coming across that file? 6 months from now. Will they be able to figure out why it is

What have people found to work the best for taming oscillations in designs using 2SC5551 or other high frequency transistors at HF frequencies? Ferrite bead on base/collector/both? Or other

Hi Steve Wow, instantaneous reply!!! Thanks: I think I understood and I uploaded a schematic as per my understanting :-) It can be viewed in the file area, under IN3IWZ\Windings folder. It's an pdf

Hi Andrea, The four augmentation transformers have the primary winding connected 180 degrees out of phase with the secondary winding--that's what the dots mean--the dots are phasing dots. Using a

Hello Steve Thanks for the link, for experimentation and for the comments on making this LNA. Would you be so kind to give some hints about the winding method for the transformers? I mean, i know

Nice to see that someone actually took a stab at this. Many people complained that it was just too complicated, but then you can't achieve much without some effort. Chris When the going gets weird,

Bonjour Steve. Happy to read about one of Alain SWL FE7523 Site youtube?: SWL FE7523 - YouTube ( https://www.youtube.com/@R9500F/featured ) He is a remarkable technician and very well equipped,

outstanding Steve Paul VE3PVB Chris will be happy you used his augmentation invention

Tom Seeger VE3PSZ told me about a YouTube video he'd come across by Alain, a Frenchman, showing a dual stage common base balanced loop amp using Trask augmentation. I admit I didn't understand

How much you want for them Everett?

I built up 5 LZ1AQ Loop amp boards, 2 of which are sold, so 3 left. They are all built with SMP parts using the 2SC5551 transistors. If anyone is interest please contact me of list at everettsharp

Please check his listing on HamShack.ca Lots of goodies -- for those in Canada and the America's - fairly affordable

While not directly related to loop antennas, there is a folder in

I will try to check some things...... but busy right now with grandsons' playoff hockey. They both play in Brantford AAA and we are travelling all over the place, including Cambridge. Interesting to

I also despair when I see the number of W6LVP loops in use, particularly on North American KiWi web sdr's. http://rx.linkfanel.net/ None of them could really be considered to be stellar performers,

John, If, when you're transmitting the dog isn't rubbing his hind end across the carpet and your skin doesn't feel hot you should be good to go. Sounds like a fun project! Carl

Thanks for your comments. I guess you only listen for HF signals as that's all the MFJ and the W6LVP loop amps are good for. Both have high input impedance which are very poor matches to a loop at MW

The amp died in my three year-old 1886 (not the TR) due to a very common issue with these models; water ingress. Over time, the elements (sun, mostly) will cause the rubber gasket on the amp assembly

True. I picked up a somewhat calibrated field strength meter meant to be used for TV antennas. Of course, there is no antenna that comes with it, but it'll tell you the microvolts at the coax