27MHz LDMOS Pallet Kit Assembly 

Man....I'm sure I've ranted and raved enough about how awesome you are for your impact on the new amp builder community. And the amp building community in general. But man....these last couple videos ??? The 27 MHz kits are just phenomenal and so very well explained. And them to go as far as to make an entire video showing assembly and explaining proper tuning and low pass filter and ...just man what a great job. ....and no question about it.....when I buy a kit. There is absolutely NO question about it.....I will he buying one of yours. Theres just no kit that comes close to yours as far as being well put together and complete woth everything you need.....and even an instructional walk though assembly video? Man....your unmatched sharky.. your quality and your commitment is in a leaugh on its own. Truly.impressed my friend and im stoked to know now which kit im gonna start my ldmos adventure with. And this one is a no-brainer . And Any newb should be doing the same. What better way to start into a hobby with $200+ devices then with a kit this well.detailed and with that much support. I hope your ready to sell some kits. Cause I'm quite sure there's gonna be a surge of people throwing money at you. And they should be.

This has to be the best amplifier build video I have ever watched. The little details shown are what really matters. I would buy this kit in a heartbeat if you had one for 50 MHz. I'm sure it would be easy to modify to work there, I'm just not at that skill level yet.

Without a shadow of a doubt, your very thorough, technical, professional and keep a sanitary work space, that says alot!!!. Excellent tutorial, Thank you for sharing this with us.✌👍🍻

Watched end to end ,It's 1:45am again and my backside aches . I recall this happened watching the lead up videos . Thank you , well done on all fronts . I'm going to try to walk now. World Wide Professor Sharkey the Generous 73's Sir

Sharky, Thanks for sharing your insight & knowledge it's greatly appreciated.

Great video, enjoyed the education!

Dude you are the man.

This is exactly what I’ve been looking for. I do not want to buy a box to just plug it in and talk. I want to learn and you have put in the work and time to make this happen for anyone else who actually enjoys the smell of boiling flux 😂 and putting shit together. Sourcing products is a hard stop for many of us who just don’t have the time. I’ll definitely be putting my bread together and send a loaf your way soon as I get my beak outta the mud 😂.

Thank you for the Video

BBI's channel brought me here and you got another follower. This might be the project I need.

sharky great work!!!!!! i can't wait to build one of these whoo whoo, have make sure that you have antenna to handle to watt lol

Here we go

Really cool kit. Watched the bbi visit with you at your place. You 2 guys are great teachers. On the kit, does it have a t/r relay or it that up to the builder to design into the amp build?

I can't wait till I get home from Sturgis motorcycle rally to start on my own kit. Sounds like a fun project to do.

That was very good

The greatest linear amp video in youtube !! What should I need more other than lowpass filter sets for multi-band operation ?

great teacher 73;s

I'm just floored man! The ABC model car kit step by step installation paper guide Ok nice. Then a how to picture component placement. ( .. NOPE.. ) Not Sharky! This guy does a full diy video with 0 editing front to back pallet build with component labeling placements to boot! But man your KISS thought out pallet with a video! Just wow!!!

A very interesting video...

Thinks alot

Hello. Can the lowered then declared output be the reason of using the ferrites of deferent type in the output transformer? Also question to power supply, but still. The PA is build say with irfp460. Not ldmos) Thanks.

Is it variable power? Or is it the full 2Kw all the time?

I'm shocked you got the price down so far, especially with the fact that the mosfets went from $250 to $400 a piece. Very nice pallet! I'm currently working on a pretty bizarre little amplifier using these mosfets that's probably going to oscillate until I figure some miracle out.

How many amps does it dray at 1 amp of bias?

DOW CORNING make excellent silicone based cooling compound Also RF approved (HF VHF UHF SHF )

Would it be more feasible to use that particular pallet but instead of having pump liquid into the block. Use dielectric immersion liquid instead and immerse the entire pallet. And then just equip a condenser at the top that would condense the liquid back in to whatever container was housing the pallet. Something similar to PC gaming computers that use liquid cooling (dielectric fluid) or similar to bit-mining racks that are now being immersed in dielectric fluid for cooling. They say it works the best. Thoughts?

Good job, Just I wonder that what was the bias voltage when you adjust main IN for 50Vdc/200mA Id current

Sharky, another tool other than the VNA that’s mentioned and used to tune the low pass and other things, can be a spectrum analyzer with a tracking generator. Some are built in and others are not and you’d use two pieces of equipment. Though the VNA can be had for much less cost than the other too. I’m not sure how accurate they are? I use an HP8924C or an HP8591E with the tracking generator option installed. I’d love to see a broadband option for us hams that love cb too and love it all! Thanks!

Nice bench Sharky! That is insane the power this thing is cranking for its size! Is this something you have designed or codesigned?

Good Build ! I Love This Shit 😁

Mad duck I tell you I've been watching your videos and I retired recently quit riding my motorcycle do the heart trouble so I'm trying to sell it as soon as I do I definitely want one of your boxes but in the meantime please keep making long videos because there is good as Bob Ross relaxing and putting me to sleep and that's a compliment not to put down. Thanks again and that's some of the cleanest work I've seen,, PS what's the price on this box now has the price gone up due to problems getting supplies or are they about the same

I have seen these amps before but they get so hot there kinda unuseable. What is the big triangle white power wafer number and where did you get them. I want to buy 2 of then by summer. To see they perform. I have been interested since they came out

❤

Hi, what ferrite core are you using on the transformer (size and type)? Best regards from Finland!

How do I get this kit

A book on how this exact design with schematic will work and explanations of circuit is planned?

Mr. Sharky I think I used way too much alcohol during the cleanup. I had to stop cause I was just too faded to keep going! 🤣🤣 Happy New Year sir. Question: what would the output be if I’m inputting 10w at 12 volts?

Great video are these kits still on sale

Can you show a two tone modulated ssb signal on the spectrum analyzer? Both wide and narrow bandwidth,,, say 250kc and as you had it set in the video. To me the low signal gain curve looks problematic..

I'd like to see one of these on a scope I have heard that they have a lot of harmonics

HOW DO I BUY ONE?

I'd have to buy a pile of tools and the tuning equipment it's better for me to just buy it all built.

Anyone know where a power supply can be found to run one of these? I have been googling my but off but have found no results. Best I can find is a 65v 5amp?

You should invest in a hot air rework station

What solder are you recommending 60/40 or 63/37 ?

Where can I order these kits?

hi, very nice, so how much for the kit, air cool and for water cooled one...tnx

Any chance that you will wind coils for other bands?? By the way great work "sharky" the art of radio is better off because of people like you. 🖐🏼 🎙73's kd9oam

Can I buy 3 units?

You might want to consider tailoring your audio frequency response..... does not need to be full range

want to order a air cooled kit how do i order

Still like to get one.

Would like to purchase one of these kits to play with

Man every thing looks so beautiful, everything I make looks like a rats nest.

For some reason, all I hear is the theme song from Benny Hill.

Hi! I'm from the philippines. I hope you 500watts for 144mhz. Can i order?

You need a pop and puff filter for your microphone.

Die Antenne glüht.Etwas Größenwahn.Mit 4 Watt Phone DX fahre ich QSO über mehrere 100Km in CB...Der arme Mosfet.💖💖💖In Deutschland🇩🇪hättest Du die Post am Halse.Tipp:auf der Rückseite Pfanne mit Spiegeleiern auflegen🗿👍🆓🆓🆓🙋😹🐓🐔🐔🐔🍳🍳🍳☕☕☕

Some scope drain 1 and drain 2 pictures

Well, you have simplified it so its not rocket science. Not sure if I wanna spend that much right now on an experiment as I have never built anything near that caliber. But maybe soon!!

Well .. 10 11 12 Is dor on dor I like 10 and 12m too So not makin a optional "" wide version"" Just stupid!!

A head Up bro!! When you cut the ende .. you leawe Cooper ende open .. re solder after cutting!! Lege off Belive me!! This is a secur way to fail If you doe's this for a levin At some point .. B&o SAILOR SHIPMATE and Meny Meny other's Has solder and cut .. then a few yers went by Suddenly things started faling !! Components lege coroded inside And broke!! Like cutting the huge lege cause stress fractur If watched under microskope!! Just reheat solder and solder open ends

Looks like just a 3rd order LP filter. While that is better than nothing, you really need a 5th order to get decent harmonic suppression.

Don't be testing your radios out on channel 19. Use channel 20 like everybody else does. I know you got slugs in and you don't think it transmits that far. But it does and US truck drivers are starting to get a little bit annoyed. Especially when we're in snowstorms and we're trying to give out weather information and road conditions to other drivers and we're getting walked over by everybody else transmitting on channel 19 because they think they're so cool because they have big radios. I love the radio game, and I love everybody that is into The hobby. But you guys really need to start showing some more respect to the truck drivers that are out there trying to use the CV for safety purposes. You guys are walking all over us all the time and it's starting to get annoying. I'm getting ready to start taking down DX numbers the reporting them to the FCC. Sorry for the rant. The reason I'm getting irritated. Is because the reason everybody stopped using their CVS in the first place was because you guys on channel 19 acting like fools. Are you guys testing your radios out on channel 19 and skipping across the country on channel 19 with your big huge radios over keying every semi truck driver out there that's got a radio. Most drivers took their radios out of their trucks because of you guys. Now due to a few pileups over the last couple years the new drivers are starting to put radios in their trucks. But now they're starting to regret it and they leave the radios turned off because you guys won't leave channel 19 alone. If you want new people to get in the hobby you got to leave channel 19 alone. Then the new truck drivers that got new radios when they're exploring other channels at the end of the day they'll be like how is that guy getting out so far. Then they'll start to explore the hobby more. But at the end of the day if they're all pissed off about the stupid shit that's being put out on channel 19 all day. They won't explore the other channels or be excited to get into the hobby. Please pass the word and stop doing stupid shit on channel 19. Keep channel 19 professional. And channel 20 is the channel you use for testing your darn radios. And trust me I know the FCC isn't going around and hunting people down. But they start looking if they get complaints. Again sorry for the rant.

They may build yours but audio from Ohio mud duck scientist, sci guy creamy corn, Santa. Aka don't care welcome to OHIO

illegal in any civilized country.

Great video, enjoyed the education!