Bit of an update to the 572B HF linear amplifier project. It is now firing and soon I will make a power and efficiency test video followed by an on air test.
Smiling! I know it's an old post but I couldn't resist. Guess this is what the call bread boarding in the solid state world. Wires all over the place, deadly voltage just a slip away. Got to love it! The way it was done back in the day, and I must admit I have done the same thing with my home brew 4-1000A amp and power supply in 76 and it's still working today. Good one Sir! 73
Scares the livin' daylights outta me! 2.7kV all over the place! I have been collecting stuff to build something like this for years but I dont know that I ever will, not game. Good luck to you, I'm sure you will get it going! vk3hn
you have 6 turns on your parcitics that why your resistors burnt out it will cause them to over heat on 10 meters and 11 meters and 12 meters go to 5 turns and the resistors will not get as hot and burn out
Smiling!
I know it's an old post but I couldn't resist.
Guess this is what the call bread boarding in the solid state world. Wires all over the place, deadly voltage just a slip away. Got to love it! The way it was done back in the day, and I must admit I have done the same thing with my home brew 4-1000A amp and power supply in 76 and it's still working today.
Good one Sir!
73
Thanks k5EDD, it was a lot of fun build and operate. Appreciate the comment.
Scares the livin' daylights outta me! 2.7kV all over the place! I have been collecting stuff to build something like this for years but I dont know that I ever will, not game. Good luck to you, I'm sure you will get it going! vk3hn
Paul, thank you for your comment, "Fear is just a state of mind that is overcome through experience." Yes it works, see my on the air video. cheers.
I'd like to observe from across the room.
Hi, some of these amps have 5 turns on the coils that are connected to the tubes and some have 6 turns. Do you know what the difference is?
Can you explain how you did bias circuit and cut off resistor?? Tnx
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you have 6 turns on your parcitics that why your resistors burnt out it will cause them to over heat on 10 meters and 11 meters and 12 meters go to 5 turns and the resistors will not get as hot and burn out
so do you want to elmer a person on the other side of the big pond. to build a linear. va1dwg
Hi Dewaine, consider visiting our friendly technical rants, echolink KD5MHQ on weekends, I often dial in that way.
great
Even Tesla would run as fast as he could from this disaster. Not the idiot car Tesla, the real Tesla.
Let's see your non disaster.