Oh wow, I am so glad TH-cam has shown me your channel.. You're doing such an incredible service to people by showing this stuff, I've been curious about it for so long. My issue with RF in general is that it is often difficult to explain without maths which I am relatively weak in. For me the math can make sense but only after I have understood it, and you do a good job with sharing understanding. :) thank you
I'm very happy you are looking at new transistor versus using the same old ones. They are getting hard to get. I am just beginning the process of moving to smd so I can have an easier time selecting the new transitors to try. Thank you for the introduction!
Very interested in what those little transistors can do. I got some ERA-3 that seem similar but haven't got around to play with them yet. As I understand they can be used both as LNA and as an output amplifier? What power output could I get just connecting it to a si5351 module?
Nice Video. I made the exact same circuit and saw the same results by following the Vid. I used the TinySA as a driver and saw the same 20db gain on my Rigol 1054 Osciliscope's FFT Screen. The 1.1 , 2.1 , etc caps are hard to find sizes. I ordered versions that were good to 1100 volts , about $3 a piece, and very large. I should swap those out for some tiny cheap caps I have on hand that might be close to , but not exactly the sizes shown on the schematic. Probably the same 20db gain.
Excellent content, but please, please put the camera on a tripod. It moves way too much and on the scope its not evens showing the relevant content at times.
Oh wow, I am so glad TH-cam has shown me your channel..
You're doing such an incredible service to people by showing this stuff, I've been curious about it for so long.
My issue with RF in general is that it is often difficult to explain without maths which I am relatively weak in.
For me the math can make sense but only after I have understood it, and you do a good job with sharing understanding. :)
thank you
Thanks for your comments!!
Nice video. Well explained and organized. Well done.
Thanks for the positive feedback! Regards, RF Man
I'm very happy you are looking at new transistor versus using the same old ones. They are getting hard to get. I am just beginning the process of moving to smd so I can have an easier time selecting the new transitors to try. Thank you for the introduction!
You are very welcome. Parts 2 - 4 will also feature newer technology. Regards
@@rfmanchannel6915 That’s fantastic I can’t wait to see them! I’m going to add this one to my purchase list. It looks very handy.
Very interested in what those little transistors can do. I got some ERA-3 that seem similar but haven't got around to play with them yet. As I understand they can be used both as LNA and as an output amplifier? What power output could I get just connecting it to a si5351 module?
They are only suitable as a preamp (below 100 mW). If you need a few watts or more, you can use the MAR 6+ to drive a higher rated device.
Nice Video. I made the exact same circuit and saw the same results by following the Vid. I used the TinySA as a driver and saw the same 20db gain on my Rigol 1054 Osciliscope's FFT Screen. The 1.1 , 2.1 , etc caps are hard to find sizes. I ordered versions that were good to 1100 volts , about $3 a piece, and very large. I should swap those out for some tiny cheap caps I have on hand that might be close to , but not exactly the sizes shown on the schematic. Probably the same 20db gain.
Informative to say the least. 73
Thanks! RF Man
Excellent content, but please, please put the camera on a tripod. It moves way too much and on the scope its not evens showing the relevant content at times.
i am in love