Well at least it's not a multiy (4) gyrotron tube build. Requiring cooling ponds. Producing 40 MW of RF. Talk about an antenna farm. Thx for sharing brother.

Budweiser is getting set up and ready to get back on

Smiling! Crazy, in a good way. 73

Hello Luke: Nice 50 cal action. I believe that the firearm is a DESERT EAGLE. God Bless, and stay safe. TMP, Unit 22 from N.J.

A hospital sized diesel generator might just be enough to power that puppy.

Wowser, What a great process of going through and troubleshooting shooting 😊 very skilled

I own one of these amplifiers. Works great but occasionally loses its mind and oscillates.

thanks for the video... didn't work for me. I used a heat gun on low and got the lower corner hot like you suggested... pinched for several minutes... still no workie.

does anyone know where i could buy three of these with out breaking the bank. (DPS-1200SB A)..

Awesome job as always BBI...

, each device is separately plugged into a wall outlet with an Earth ground connection that is common to the electrical distribution system. As a result, a loop is formed, which can act as a loop antenna

Smiling! Always wanted to build one, I built a one holer in 1976, been modified some over the years but still runs well, use it almost ever week on 75 meters. Grounder Grid, 3950 Volts DC puts out about 1500 watts with Icom 7300 driving it, little more with the TS 830S. Once had a 5000-volt AC transformer in it running it on a big old Variac, but once you passed 5700 it would find its path to ground. Not sure how much power it put out but would bounce the needle off the peg like it was on the 100-watt scale not 2000 on a Drake W4 meter. Still have the transformer but need capacitors to handle it and I dropped the variac on one of the many mods and busted the wiper arm off. Home brew Filament transformer on a switch and never had a problem in all these years, but like the idea of the variac. 73 Ed/K5EDD

How come you're not interviewing . Kilgore from fort Worth Texas He's 80 years old and he's the real legend.

Really interested in the feed to the antenna.

Looks good I would add it's a shame all the control circuity is from the 1930s. this is a good thing only to a point, if you have a fault there will be damage sorry relays don't work that fast and energy stored in caps will go somewhere. No need to explain why you guys do what you do, I already know the answer. Right on on the stainless steel hardware. Please NEVER buy hardware from China; the good hardware comes from Taiwan. I ALWAYS shop by Country of o origin. Never China, for any reliable electronics Unless You have No other choice. I have watched enough videos to know you follow this to a degree. I started in CB back in 68 I was in middle school, got bit by the electronics but four years before. Got out in 96, after doing radio mods, repairs, and lots of amplifier bias mods, I started doing those in 1975 to TPL 11 meter amps. Built a few tube and solid state amps from bare metal 1972 to go behind my Siltronix 1011B. I am an old Bat now with a Ham license. Love working on gear and I still Do. Keep up the good work.

You can't compare apples to oranges you get what you pay for

You can't compare apples to oranges you get what you pay for

I’m pretty sure if and when this all works out , he’s gonna charge everyone DX rent talk time , cause he’s gonna rule the airwaves lol

Thanks, BBI, my friend who works in the machine shop will make a cover, this Amp will do just fine 👍

I think they use deionized or distilled water to cool them. For the megawatt level tubes they use distilled water.

@ 19:49 That happened to my DX250HDV, seems like previous "rework" needed to be prepped & clean.

What kind of electric service are you using. I dont believe the power co. could supply enough. What kind of antenna are you using?

plate voltage is 11.5kv @9a is the sweet spot for this tube. Use distilled water to cool it. i ran this tube for 17 years in an am transmitter.

When does it end? It will, and will involve trucks, heavy equipment, scrapyards, recycle places, and families with no idea how much to sell it all for…. Have fun, big fun, while it lasts. We are all aging at the exact same rate. Tesla, Darwin, and Freud would have gotten a kick out of y’all and your gear and devotion to ….your mission. 73 - Beaver Mechanic

Just bought one !!! 😊 should be here in the next couple of days !!!

What's a 50 call?

a few years ago I demoed a comark transmitter after wiring it's solid state replacement. it was a 4 section. The tubes were on a caddy that rolled into place in the cabinet. neat setup. the HV supplies were in another room on the opposite side of the building. unfortunately they decided to abandon the supplies in place. oil filled transformers with submerged rectifier boards and filter caps contained in a single very heavy cabinet. 22.4kv, if I remember correctly. been a few years. they ran the high voltage leads in rigid conduit to the transmitter cabinets. (very well grounded rigid conduits, I might add)

I'm waiting to see the part for the antenna. Makes you wonder what that's going to be like. Just think Keying 200 plus K. In swinging 500K....WOw !!! Let the fireworks begin. Awesome awesome video.

I'd love to know what "prime" is putting out wattage wize. After seeing his video of his amp room I'm definitely curious. Dont blame him for not putting it out there though.

Game over. Im selling my junk😢

So what kind of circuit will this amp need to power it?

Very nice 💪💪

If the FCC doesn't finally get involved ( and i prey they dont) i better not hear even ONE ham arse hat tell me ever again that my sb220 is going to get me in trouble. 😂

Jesus Harold Christ! 😂

Now that is freaking impressive. 💪🇺🇸💪

855 number?! Not good, and no where is EPD to be found. 855 numbers are scam numbers

And yet you wounder why they didnt just let you drop off the parts n go bbi lets be truthful i know you not beating your chest but your the most knowledgeable and scientific mud duck on the band man and that project woulda never happen if it wasnt for you i just hope you get the patience on day to teach somebody else just half or 3/4 of what you know so they can keep us going with safety then with the hobby keep doing what you doing man alot of people can talk but very few can walk in your shoes if any im serious

And yet you wounder why they didnt just let you drop off the parts n go bbi lets be truthful i know you not beating your chest but your the most knowledgeable and scientific mud duck on the band man and that project woulda never happen if it wasnt for you i just hope you get the patience on day to teach somebody else just half or 3/4 of what you know so they can keep us going with safety then with the hobby keep doing what you doing man alot of people can talk but very few can walk in your shoes if any im serious

I just want one 4cx5000 box

You are the funniest nerd I've ever met. Your humor alone has me watch these videos and I have almost no knowledge of what the hell you are talking about. I'm just a big truck driver with a cb.

Yeah, gain dryer sheets! Makes your equipment minty mint 😂 lol but seriously cool stuff

Thank you, BBI. Prices have changed in a year. Wonder if you would sell a completed one?

I can only ask... Why? Just so you can say you did it? Friday night linear fight? Something to occupy time? King of the hill? The next guy will have to do half a million watts to squeeze out another s-unit... When it gets cold this winter throw another stack of 100 dollar bills on the fire...

Is there a formula to calculate tube placement to avoid tuning issues?

You seen very knowlegable in electronics, is this something you learn as a trade? i'm learning from you or at least get a good idea on this field, thanks nice video I know editing and fixing things up take hours to edit, but you doing great,

Breezes over that joke. "My tool feels good in my hand" 🤣

I can’t wait to hear this thing!!!!

That is wild. I don't my ass from a hole in the ground as far as RF stuff goes. Just surface level stuff, and almost entirely on the RX side of things. But I do find all this incredibly interesting, and you do explain things in a way that even a layman like me doesn't get completely lost in the woods. But that rig is some next level stuff. Having to put in that much forethought to account for x-ray emissions, good Lord. Absolutely wild to hear where that tube came from. That is one heck of a project you all did there. Impressive as all heck. The launch was beyond cool as well. I wish I had been old enough to catch the Apollo missions, but I missed the last of those by a few years. One of the things I got a huge kick out of was when I got a chance to see the Liberty Bell 7 on display after they had fished it out of the ocean. It was hilarious seeing all the crap they found inside it. These days, everything is done as sterile as humanly possible. Seeing all the junk they found in that capsule left by the engineers was just hilarious. Plastic cups, a whole pile of cigarette butts, little taped up wads of coins they hid up behind the control panels and under the seat so they could retrieve them after the mission and give them away as coins that had been to space, the odd tool or two, just random crap that fell out of a pocket or whatever. It was a very cool thing to see. They were also able to analyze what had happened after splashdown and clear Gus Grissom of any fault for the hatch blowing off early and sinking the capsule. It's a shame he couldn't be there to hear it himself and get the apology he deserved, but at least it did get sorted out after all.