Radio Electronics

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@sidbhattacharjee1872 Ай бұрын

Excellent video, exactly the feature I am looking for rather than plain vanilla input and output. How did you connect the CI-V of the two radios to the amplifier, is that just physically connecting the two wires from two radios or via the CI-V router? 73's de VK2SID

@AbdulMalik-in3cl Ай бұрын

ITS very good desind Can I get this PCB and how much will it cost if plus components de yb2bam

@harry4516 Ай бұрын

you can get this board from [email protected] , please contact him

@welersonfoxx1 3 ай бұрын

top d++++ maravilha esse seu projetor como faço para ter uma dessa aqui?

@Leopoldino2020 4 ай бұрын

It's a very beautiful job. Respect from RUSSIA.RA3ASA. 73!!!

@TheSiliconchip 4 ай бұрын

Super (AP2SM)

@m1geo 5 ай бұрын

Nicely done! George, M1GEO!

@ua9lhu1 6 ай бұрын

Hello, are the capacitors c1,c2,c5,c6 10uF or 10nF ?

@frankthetank3342 6 ай бұрын

Can we run dual LDMOS boards into dual LPF boards, before the combiner? (To allow higher powers/duty cycle)

@wesleymatthews137 7 ай бұрын

I don’t see the schematic on the English version of your website. Did I miss it?

@davidshapiro5616 7 ай бұрын

One cannot contact DJ0ABR. Does anyone else produce similar? I would very much like a controller driving an OLED display.

@Obscure121gw 8 ай бұрын

Great job! Love your heatsink design. Not sure what gauge wiring you are using between the PSU and the distribution panel. The twin pairs look small in the video. I would expect you would need a total wire gauge of 6 AWG or 16 mm2 metric for 50 amps.

@muckemark4318 9 ай бұрын

woher bekommt man so einen guten wiederstand für sowas selber zu bauen? und wievil braucht man dazu? wäre super wenn man das erfahren könnte.

@hamshallofshame9890 2 ай бұрын

Entweder Du hast das Video nicht wirklich angeguckt oder Dein Englisch ist so schlecht wie mein Mandarin.

@zaywas 9 ай бұрын

Hi. I love your projects, I think the execution is perfect. Just out of curiosity, what is the behaviour of the controller when two PTTs are pressed down constantly ?

@jensfischer3546 11 ай бұрын

Hi what cooler are you using to cool the water. I did not see it in the videos. 73 Jens DF5HC

@dancosminmarza2974 Жыл бұрын

hi nice desig i wont pot mor then 1.5 kw in it som componest vont taki it specialy the relays 20 amps or biger ld mos amps and tub amps are similar but difrent hawe a sovit era r140 capable of 500w 1kw 1,5kw 2kw and u to maximum 6 kw evreting is hevy and big ,very big air gaps betwen component main antena filter everything is silver or silver plated the relys are made 4 120amps continus work at 25kv the coils on them are 48v i sugets going wit biger voltage on your caps 3kv or higher 73

@dancosminmarza2974 Жыл бұрын

hi beautiful project i reali like the aprochy specialy wit water culling in sted of power prongs a anderson conector is a beter upgrade 73

@MikePeace Жыл бұрын

Where may I purchase the 2 PC Boards for this LDMOS amplifier?

@michafpv628 Жыл бұрын

Hi, gibt es von der IC Platte eine Download Datei? Würde die gerne nachbauen.

@ssmbssmbssmb Жыл бұрын

Hello, is your pcb pattern free to download, if so where to download please ? I just want the directional coupler pattern. Thanks

@guoss7741 Жыл бұрын

Connecting 9 resistors like this will affect the inductance or not.

@zeljkoadzic1692 Жыл бұрын

is this really 750 W continuous load?

@justicelut Жыл бұрын

A very nice job sir. Well done!

@MikeG-js1jt Жыл бұрын

How noisy is it?............. dont these create a lot of QRM?

@pitpbrukr4518 Жыл бұрын

Hallo - mich würde interresiern wo ich bestückte Platinen bekommen könnte w ? Quelle für nur die Platinen habe ich. DANKE

@ghlscitel6714 Жыл бұрын

Nicht schlecht, Herr Specht!

@Francisco-qq5mv Жыл бұрын

Para que quieren hacer tanta mierda refrigerado por agua como si fuera un motor

@michaeltietzyou Жыл бұрын

ich bitte um Kontaktaufnahme zu diesem Projekt 73 dj4mt

@michaeltietzyou Жыл бұрын

Hallo - wo kann ich bestückte Platinen bekommen ? Quelle für nur die Platinen habe ich. DANKE

@andreas5168 Жыл бұрын

Please show me how the ALC and PTT radios were connected Andreas

@pingvinpatriot3858 Жыл бұрын

Where can I download the program and drivers for video cameras? Где найти программу и драйвера для камер?

@1883GotDown Жыл бұрын

This is amazing but where do we buy this? This is like dangling a piece of candy 🍬 in front of a baby buddy come on help us out lol.

@sudriyodriyo8557 2 жыл бұрын

Resistor 2 kaki belinya dimana??

@hickenc2187 2 жыл бұрын

자세히는 못 봤는데 ㅎ 내부에 물과 반응하지 않는 코팅을 했나? 안 했나? 예를 들어서, 수산화알루미늄은 잘 자랍니다.. 금속은 다 그러함. 수냉방식 펠티에냉장고 만들어 보니 그렇더라구요. 가공하실 분 참고를 하소서. 그리고 원터치피팅은 기체용도임 그 구조와 리테이너의 재질상 액체용도로 쓰면 단명함. +덕분에 공정 잘 보았고 대단히 고맙습니다.

@hickenc2187 2 жыл бұрын

I didn't look closely, but is there a coating on the inside that doesn't react with water? didn't you? For example, aluminum hydroxide grows well. All metals do. It was like that when I made a water-cooled Peltier refrigerator. Please refer to the person who is processing. And one-touch fittings are for gas use. Due to their structure and retainer material, they are short-lived when used for liquid applications. +Thank you, I saw the film and thank you very much~~~ !!!!

@ohmschool 2 жыл бұрын

Questions (N=2) if I may? *Q1:* The water pump datasheet shows maximum flow rate of 16 Liters/minute, however what is the flow rate you recommend? *Q2:* It appears you are using 100% water, maybe tap or drinking water only. I imagine there is a problem with growth of micro-organisms and algae if the water is not changed and cleaned frequently (e.g. every 3 months or so). How do you handle this problem. Do you simply drain the system of water each time you use it, or do you add some type of chemical to water to kill the bacteria? Growth of micro-organisms + algae is a common problem for closed-loop cooling systems, such as those of CPU cooling, or commercial chilling systems / heat exchangers, so I am curious how you handle it for your amplifier. Thank you and amazing work by the way!!

@southboundsuarez9832 7 ай бұрын

I imagine that the copper itself offers antimicrobial qualities similiar to the properties of copper pipe in potable watervsupplies

@CT1JRZ 2 жыл бұрын

Very nice video!

@DD4DA 2 жыл бұрын

That's a DJ0ABR Controller and he share the code and the project on git-hub, if i remember me right.

@RC-Heli835 2 жыл бұрын

This is very nice! Why could you not place a gasket in between the soldered plates and screw them together instead for easy maintenance? Car water pumps do it every day for years and years they work.

@f2uiv1w4 2 жыл бұрын

Hello Sir, 6:36 did you bake it afterwards and how?

@tonyhagen9716 2 жыл бұрын

where can we get more details of this project - IS IT A OPEN SOURCE

@on2mvh937 2 жыл бұрын

Is this still available?

@geoffreylotz3661 2 жыл бұрын

Excellent work - I don't like the sound of fans running either. Water cooling is, well......cool. 73 de CT7/ZR1XZ

@princetn 2 жыл бұрын

how is it only outputting 1000watts? each of the transistors is rated up to 1400watts RF output?

@harry4516 2 жыл бұрын

since the output power does not depend on the transistor. It depends on the winding ratio of the output transformers, and there is a physical limit by the impedances in the whole system compared to the 50 ohms antenna resistance. So, with all these usual designs you will end at about 1000 watts. For higher power you need to combine multiple boards together. Changing the winding ratio is not a good idea, because it will result in much (!) higher current which cannot be handled by the usual PCB designs.

@princetn 2 жыл бұрын

@@harry4516 It sounds to me like you are not exploiting the transistors to their full potential. You simply settled with a design that running at lower than what the transistors are capable of. For the transformers to handle higher current just use thicker cables. Also I think your filter is killing too much of the output power probably. I don't know why you decided to use transformers for combining the output power? But overall your work and craftsman is really good. I am sure you can make additional improvements to make it output higher power and your main reason for this inefficiency is the broadband design trying to make the amplifier linearly outputing the same power across a large band of frequency. usually RF transmitters/emitters will be only used for one single frequency or a small band. You can't have a design at high power efficient on a large band of frequency.

@princetn 2 жыл бұрын

Nice work! You have really great attention to details. I like your work. How much did it cost you to buy all the equipment for smd placement machine and soldering? Friend from Tunisia.

@unclequack5445 2 жыл бұрын

I promise you that placement machine was not cheap like he says he has some nice equipment.