70 Watt Amplifier - Two Tone test
Автор: NA5Y
Загружено: 2021-12-30
Просмотров: 2347
Описание:
Just a quick followup from the previous video
• 70 Watt Amplifier Kit Build
Where I do the two tone test against the 70 W amplifier kit. Funnily enough just after I finished the video two more IRF530s gave their lives - next vid will definitely have the temperature protection in.
Here's the video and site I mentioned with all the mods
https://f5npv.wordpress.com/irf530-mo...
• F5NPV - 50w IRF530 MOSFET RF amplifier des...
(thank you for the tip Peter - for some reason your comments aren't appearing on the previous video)
Schematic
https://github.com/thaaraak/70W-Ampli...
0:00 Intro
1:08 Test Setup with Magnis as Exciter
3:01 Two tone with Magnis as Baseline
3:50 Magnis on Spectrum Analyzer
5:19 Two tones not quite Pure?
5:39 Two tone from the Amplifier
7:00 Amplifier on the Spectrum analyzer
8:44 Close up of Amplifier and other mods to do
11:31 Some tests with a 15 ohm resistor at R6 (see schematic link)
11:54 on the oscilloscope
12:23 and on the spectrum analyzer
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