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Tuesday, May 21, 2024

on video LM350T VS LM317T 1 2v 25v 3A Adjustable power supply


 LM350T VS LM317T 1 2v 25v 3A Adjustable power supply

In previous videos I mentioned that you can make your own tubular capacitors for things like antenna traps.

In this video, I am going to show you how to build the new and improved version of the tubular capacitors that I created for my 20m/40m trapped inverted-vee antenna.

The purpose of the improvements is to increase their high voltage capability.

I estimate that this improved version should be good to at least 20 kV based on the dielectric strength of the polypropylene tubing and the mechanical construction.

I absolutely know that they will work just fine in an antenna intended for use with 100W because their lesser capable cousins (the ones in my traps for the 20m/40m inverted-vee) worked great with my 100 watt transmitter.

Unfortunately, I do not have the means to test what their actual voltage and current limits might be.   If *YOU* do, please feel free to share your test results with me if you care to do the testing.


 LM350T VS LM317T 1 2v 25v 3A Adjustable power supply

In previous videos I mentioned that you can make your own tubular capacitors for things like antenna traps.

In this video, I am going to show you how to build the new and improved version of the tubular capacitors that I created for my 20m/40m trapped inverted-vee antenna.

The purpose of the improvements is to increase their high voltage capability.

I estimate that this improved version should be good to at least 20 kV based on the dielectric strength of the polypropylene tubing and the mechanical construction.

I absolutely know that they will work just fine in an antenna intended for use with 100W because their lesser capable cousins (the ones in my traps for the 20m/40m inverted-vee) worked great with my 100 watt transmitter.

Unfortunately, I do not have the means to test what their actual voltage and current limits might be.   If *YOU* do, please feel free to share your test results with me if you care to do the testing.

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