I have a couple videos on the KL703, great amp like the 503. Awesome DC and RF filtering and definitely more linear and cleaner than the actual home brew amp builds, only thing is there is no high SWR protection circuit. Great video Rooster, 73.
@ericklein4282 Жыл бұрын
You bet ya that they're well designed AND built amplifiers.! >> The KL-805 (28vdc, using MRF-422s) has a very well designed, high-SWR (about @ 3:1) auto shut-down circuit, but only because it's their most powerful "10-meter" amplifier (outside of their high quality Ham / HF / Amateur linear's) but are also reflected in their price.!) Regards from Eric Klein, of Klein Communications...
@vegasfordguy3 жыл бұрын
People talk a lot of smack about these mosfet amps. From my experience they perform just fine as long as you don't overdrive them and your dead key is set low. They are good little amps, people just burn them up because they run them incorrectly. I'm currently running a 2x8 Superior mosfet amp with ten Palomar Erf-9530's. I have no problem seeing 1kw. I'm driving it with 6 watts carrier and 45 swing.
@5940-c7w3 жыл бұрын
I am also running a 2x8 Superior excellent AB1 amp
@frankinstein64563 жыл бұрын
What's the name of the 1000 watt Mosfet linear you run im looking for one
@1000XL2 жыл бұрын
@@frankinstein6456 Rocketbox Electronics
@Bernard-John3 жыл бұрын
HI,good video, well explained, I have the RM 703 model, very clean and clear modulation, but she is hungry, I would recommend 60 Amp power supply, for the full potential, thanks from Rotterdam.
@125southernnh23 жыл бұрын
The high drive is a sweetheart. I'm using one now.
@albertrollan15613 жыл бұрын
Hi! Where did you purchase yours and how much does it cost?
@EdzashedFudwinkle3 жыл бұрын
@@albertrollan1561 about $700, £500 for me in the uk
@robertcook59723 жыл бұрын
This is a P to P linear no more than 35 watts P to P into it. Per KL seller to me . I have 2 of them Not 35 Watts it will kill linear only 35 P-P watts
@Iheartmyson7 ай бұрын
So i have to set my Crt variable radio max to ? how much watts? In this video he uses 2 watts. Mine does 2,5 watt lowest . On internet the specs state that you can put in max 35 watt . Which I dont want : use the top input to spare it. The radios output turn switch makes the wattage go out slow at first. But halfway it jumps real quick to the 38+ watt output. So what is a save output wattage to set my radio at please? Sorry for my bad english grammar btw.
@gkl59993 жыл бұрын
nothing wrong with mosfet amps as long as you have all your ducks in order, good antenna, good SWR, good coax, and a clean output radio
@jesseworkman44183 жыл бұрын
I don't have ducks they're not in a row. I have squirrels. 😆🤣😂
@INTHEMIX743 жыл бұрын
would be nice to see amp reveiwers do ssb output as well...we are not big into am in australia 80% of us use ssb ..we chuck am radios in the bin here....
@Rooster_Radio3 жыл бұрын
if you drive it with the same output on ssb it will do the same amount of power. 35 watts of peak power is 35 watts of peak power regardless of AM or SSB. Unless your radio does more on ssb than am the output will be the exact same
@mattwinn96073 жыл бұрын
It's still an AM radio on ssb
@dorianconor49833 жыл бұрын
I guess it is kinda randomly asking but does anyone know of a good website to stream new tv shows online?
@terrellbraxton193 жыл бұрын
@Dorian Conor I would suggest flixzone. Just search on google for it :)
@ZommBleed2 жыл бұрын
@Southern Gunslinger They chuck them in the bin, same as their guns. Now they have no choice but to comply with their COVID and VAXX overlords. SSB will soon be added to the list.
@robertsmotherman7408 Жыл бұрын
I just ordered one from you in excited about it.
@RogerSayers2 жыл бұрын
Howdy Rooster, Are you still amongst the living? I sure hope so cause I need your help. So, thanks for sharing this video with all of us. I'm wanting to get one of these 503 amps. Do you sell them? If so let me tell you what I have so far , I have a uniden 980 SSB and a SolarWinds A-99 omnidirectional base station antenna. I'm not a rich man so trying to set myself up with a fairly nice base radio. My question is can you guide me through this stuff? Will the 503 amp work with my bearcat 980 SSB radio? Will the radio need any internal adjustments? Any help or information you can provide me with will be greatly appreciated. Thank you very much....
@rallypoint13 жыл бұрын
I like that amp!! I guess my McKinley DK at 4w swinging to 12w should drive that amp. My 203 does 150w with a 1.5w DK. Awesome amps!!
@Rooster_Radio3 жыл бұрын
12 watts wont drive it to full potential. You'd be better off with a standard 503 or 503p. Even those models recommend 25 watts peak
@rallypoint13 жыл бұрын
@@Rooster_Radio Thanks for the quick reply!! Ok that’s good to know. Figuered with the HD I wouldn’t have to lower RF power when going from SSB to AM and vice versa. I will shoot you a text.👍🏼
@W5KJD11 ай бұрын
I got one from you and I love it.
@mikestone91292 жыл бұрын
My Uniden Washington is pretty much un-molested, so doing about 20 watts. Is this gonna be enough to get 300+ watts out of this 503HD? Or would I be better off going with a 503P?
@stevencarroll56443 жыл бұрын
Regards from Nov Scotia, Canada ! Just coming back to cb from the 90's..have a uniden pro520xl and k40 magnetmount. Was just given a trc-485 ssb to play with, local chatter is dead, love to get back into shooting skip..what amp would you recommend to kick it up a bit with reliability? Thanks and cheers!
@ronaldgrimmig66593 жыл бұрын
I have the same cb as you with the K30 magnet mount. Did you find an amp that works good, and did you have to do anything to the radio to not over drive the amp? Not sure what the dead key is on these.
@stevencarroll56443 жыл бұрын
@@ronaldgrimmig6659 no, been debating to order the rm italy or a bj 300..
@ronaldgrimmig66593 жыл бұрын
@@stevencarroll5644 I've been searching everywhere trying to find the dead key and peak watts for this uniden. Without buying everything to test it myself. Want to add an amp in my truck, camper, and sxs. All on same CB.
@321CatboxWA8 ай бұрын
FYI , warranty void if broken seals are not allowed or legal in the USA. In other words nobody can legally void a warranty over a broken seal and they know it. Thanks for posting.
@Rooster_Radio8 ай бұрын
Good thing there's no warranty on any of these amplifiers realistically anyways 😂😂😂. Ultimately a manufacturer can decide not to warranty for something for any reason they want.
@321CatboxWA8 ай бұрын
@@Rooster_Radio yup
@321CatboxWA8 ай бұрын
@@Rooster_Radio I like that you check 'em out.
@ramonnunez89512 жыл бұрын
Do amps mess up a semi truck ecu? I was told it will fry it by some tech out here in Nevada and another tech from California said no it shouldn’t as long as i got good coax and low swrs and another tech said well it can 🤨…. So im here asking you now what do you think is it safe to run an amp in a semi truck I took a huge interest in this amp over my Midnight Special 250 toó bulky this 503 HD looks slim enough to put over my cobra 29.
@thesuccessfulbarber Жыл бұрын
I used 100 watt amp in my wife's car and it put it in limp mode
@borri68 Жыл бұрын
Are linears listed on your site? If so under what? Thought I found them before.
@Rooster_Radio Жыл бұрын
They're not
@silverado15573 жыл бұрын
Getting back into the hobby after 30 years. Have DX 959, power turned down so I have 1 1/2 watt dead key on low power. Peaks at about 7 watts on am, about 25 watts peak ssb. Is the KL503HD designed for more powerful radios? What mods would be required on my 959 to run this? Or would I be better off going with a KL 503? Thanks in advance!
@irvynramosgarcia69582 жыл бұрын
Tu radio en esas condiciones no le hará nada a ese amplificador.
@mikestone91292 жыл бұрын
You'd be fine with the 503 HD or standard 503.
@jeffhouse43776 ай бұрын
Hi Rooster, I have a 503HD and was working ok but now the audio is distorted. Would you says the mosfets are damaged? Thank you!
@Rooster_Radio6 ай бұрын
Did you power output decrease?
@albertrollan15613 жыл бұрын
Hello there! how much is that kind of ampli? Where can i buy it?
@RidingDirtyAdventures2 жыл бұрын
crazy love your vids never realized ya live so close to me... I'm in SE Cleveland Tn......
@Rooster_Radio2 жыл бұрын
Awesome. Do you talk on the radio?
@RidingDirtyAdventures2 жыл бұрын
@@Rooster_Radio just getting back into it setting up a indoors base station a with my superstar 3900 and going to put a cobra 29 ltd blue in my Jeep... have a couple older amps like the Texas Star 400 and another one around a 350 can't recall the brand though... any how thinking of at either the RM ITALY 203p or this KL 503 HD...
@RidingDirtyAdventures2 жыл бұрын
that 503 swings.... old player from the 80's and 90's then came back on to chase skip in the early 2000's but family life took over retired now so time to play....
@CEWade11 ай бұрын
What power supply are you using for this amp?
@mr.stonerUDX7143 жыл бұрын
awesome unit
@mitch50772 жыл бұрын
What's your experience with RM Clones? I heard the 100 watt's can be from China?
@Rooster_Radio2 жыл бұрын
Never had any of the clones
@mitch50772 жыл бұрын
@@Rooster_Radio Ok maybe just rumor's. Thanks
@johnnywood80823 жыл бұрын
Which one should I use with a Galaxy 99V puts out 40-50 watts? Hi drive for sure?
@ron996932 жыл бұрын
I'd like to run my president lincolin 2 plus with this amp, is that doable?
@davemiller76904 ай бұрын
Can I use this amp behind my Anytone 5555n2 safety without over driving it?
@Rooster_Radio4 ай бұрын
All depends what your radio does for output
@ralphcintronnjr9869 Жыл бұрын
hello Mr. rooster how much for one of those 503 hd I need for my mobile I'm gonna run my cobra 148 nw soundtracker
@JoeR2033 жыл бұрын
I have the regular 503 (gold casing) and the instructions say input power is 1-6 watts.
@Rooster_Radio3 жыл бұрын
1-6 watts AM carrier, not peak power, even a stock cb will produce over 6 watts peak power
@JoeR2033 жыл бұрын
@@Rooster_Radio I have an RCI Ranger RG-99 that I wanted to use but I think it would be too much for the amp and I don't want to open the radio and mess with the internals to turn the power down. So I bought a President McKinley to use instead. Not sure if I want to keep the RG or try and sell it.
@justinlewis25983 жыл бұрын
Sweet. I’m interested.
@EricWTwiss3 жыл бұрын
Would you use the HD with a Uniden Washington that swings to around 20W on SSB?
@Rooster_Radio3 жыл бұрын
Yes but the regular 503 would also be fine
@mikestone91292 жыл бұрын
Thanks for asking, I have the same rig and use the 203p right now, want to up it to the 503.
@honeybadgertruckin18372 жыл бұрын
Will a connex 36hpf pair good
@bradsmith95613 жыл бұрын
Do you have any of these in stock? Or the regular 503?
@rickyh47963 жыл бұрын
Can I put this on a cobra 29
@guytrent16033 жыл бұрын
Awesome amp how much is it
@aol76711 ай бұрын
FCC rules protect sales and usage to transmitt w a cb linear ,during riots, wartime, Emergency, shoot skipland, any regular type reasonable ways.
@pearsoncontractingllc95873 жыл бұрын
Seems crazy to me that they call this an "hd" when it only takes just a couple more watts of input than the standard 503.
@ChristiannTyler3 жыл бұрын
So that’s peak power not average power when it comes to the Recommended drive ? So you can’t have an average power of 30 watts and drive it into the amp
@Rooster_Radio3 жыл бұрын
35 watts-40 watts top peak. Deadkey 2-3 watts. Forward average power 10-12 watts max
@gaetanmicallef2135 Жыл бұрын
Does this amplifier suit my YAESU FT-DX 1200 - HF transceiver?? Please help me !
@Rooster_Radio Жыл бұрын
Does your yaesu do 35 watts peak/PEP
@gaetanmicallef2135 Жыл бұрын
My rig is an HF TRANSCEIVER used by qualified RADIO AMATEURS , not CBers !!
@gaetanmicallef2135 Жыл бұрын
Its output is 100 WATTS.
@haroldboognish Жыл бұрын
@@gaetanmicallef2135 Probably won't work very well for AM because the radio isn't set up with much AM PEP. It would work on FM and SSB, you will need to adjust the RF output, but you should know that already. What is a qualified RADIO AMATEUR doing looking at lowly CB radio amp videos lol? Get you an Ameritron and buzz off Gayton
@therealwolfspidertoo3 жыл бұрын
Does this company make an amp for 1.8mhz - 30mhz HF?
@AndrewKernohanDLC3 жыл бұрын
Can I put the 503 HD in my 2016 Dodge Ram Sport without damaging the alternator or battery? Thanks
@Rooster_Radio3 жыл бұрын
Yes shouldn't be an issue
@turboomni8483 жыл бұрын
Can you run these HD's with a factory stock radio like the President McKinley? Thanks
@Rooster_Radio3 жыл бұрын
Deadkey needs to be 3 watts or less and with a stock radio you aren't going to see max output.
@turboomni8483 жыл бұрын
@@Rooster_Radio Thanks ,how much pep you need for SSB? Mine does 12 watts or so ,is that enough? I get the feeling with a stock radio the non HD kl-503 would be better for me? Love your channel, subscribed and watch often.
@allanvarner81373 жыл бұрын
What kind of watt meter is that I like it kiind of looks like the old bird meter
@Rooster_Radio3 жыл бұрын
Bird 43p
@brianhenry84642 жыл бұрын
Thinking about purchasing, What are the true dimensions including heat sink?
@Rooster_Radio2 жыл бұрын
Roughly 12x7x2.5
@brianhenry84642 жыл бұрын
Purchased. Can’t seem to get over 200 watts. Do you have any suggestions?
@Rooster_Radio2 жыл бұрын
@@brianhenry8464 what radio are you using and what is the output of it
@brianhenry84642 жыл бұрын
Galaxy 93T. Running the radio on high.
@Rooster_Radio2 жыл бұрын
@@brianhenry8464 well... A galaxy 93t is a turbo radio with a built in amplifier. It's a wonder you have an amplifier at all. The 93t well exceeds the 35 watt PEP recommended in the manual and that I have also stated countless times in these videos
@bionicrooster57623 жыл бұрын
Rooster can you put a wall plug in on these? I know you have to supply your own cord. I want to use it on a base setup. Just don't want to buy another power supply unless I have to.
@Rooster_Radio3 жыл бұрын
They are dc amps not AC, so the answer is no. Power supply only
@bionicrooster57623 жыл бұрын
@@Rooster_Radio ok thanks.
@TwistedFXgaming3 жыл бұрын
Ok so whats a good radio to drive this driver with? Like a Galaxy 959 with both finals or a Galaxy 99v?
@Rooster_Radio3 жыл бұрын
959 is a single final radio. With a good tune it would be a perfect match
@trondyne351310 ай бұрын
When they talk about max input do they mean peak or avg?
@Rooster_Radio10 ай бұрын
Peak on these 35/40
@trondyne35139 ай бұрын
Thanks... So if I set my Richard for that it should be ok yes? (KL 503 no HD) @@Rooster_Radio
@TheJaybird67k2 жыл бұрын
Can you drive this with a RM Italy KL 35 with stock Cobra?
@Rooster_Radio2 жыл бұрын
I wouldn't
@sergiodmota2 ай бұрын
A minha está com estacionária alta somente em ssb, o que pode ser?
@927JEL3 жыл бұрын
Would this amp be compatible with a general lee?
@davewatson282911 ай бұрын
Would be nice if they indicated what Transistor Complements also what Voltage was you putting into it I'm sure if 15V was put into it A noticeable change
@darktreatnyc12 жыл бұрын
How come you never show how you hooks up the amplifier to the radio
@Rooster_Radio2 жыл бұрын
Not difficult. Amplifier has an input and output. Input comes from the radio, output goes to the antenna
@therealwolfspidertoo3 жыл бұрын
Does it need a fan?
@Rooster_Radio3 жыл бұрын
Depends how long winded you get
@7972david3 жыл бұрын
How do i purchase 1 from you
@joerowland73503 жыл бұрын
Wood this b a good mach to a Lincon 2 ?
@SEPU033 жыл бұрын
Hi I would like to know if you think I could run a Italy with Galaxy 959T2 big rig series radio
@Rooster_Radio3 жыл бұрын
No
@GaryLordsWayMinistry2 жыл бұрын
Transistors are not covered due to high wattage input or high SWRs on an antenna as well. Get a camera and a tripod for crying out loud.
@Rooster_Radio2 жыл бұрын
Buy me one 😉
@ryantyre13 жыл бұрын
@rooster do you have any of these 503 HD in stock? I think this would fit my galaxy 44hp and stock power set up nicely.
@AttackPlan3 жыл бұрын
How do I get my hands on one?
@cortneyrogers11693 жыл бұрын
Ok so I want to get me one 503 HD with a 30 amp power supply I'm using a radio that dead keys 4 watts would I have to turn wattage down to keep from over driving,I have no variable power so it would go to a shop if needed. thanks!
@andrebonin722211 ай бұрын
What does go bye??? $$$$$$$$$$$$$
@eri197395 Жыл бұрын
Need one how much how many whats its o
@tennesseevolunteerwrestlin1922 жыл бұрын
does the amp work on fm?
@Rooster_Radio2 жыл бұрын
Yes
@brianswem16563 жыл бұрын
What stock cb would be best for this amp thanks
@Rooster_Radio3 жыл бұрын
No stock radio will drive it to full power. The 203p would be better for stock radios
@ChristiannTyler3 жыл бұрын
What’s the biggest gauge wire you can get in that amps terminals?
@Rooster_Radio3 жыл бұрын
8
@ChristiannTyler3 жыл бұрын
@@Rooster_Radio thankyou also do you recommend a certain length jumper from radio to the amp?
@Rooster_Radio3 жыл бұрын
@@ChristiannTyler anything over 3ft
@ChristiannTyler3 жыл бұрын
@@Rooster_Radio I’m sure your busy but is there a brief explanation of why to use over 3ft? All mine are 3ft, just curious.
@Rooster_Radio3 жыл бұрын
@@ChristiannTyler sometimes 3ft jumpers will cause oscillation issues, making relays stick in the amp, keeping the amp keyed etc. Not always, but sometimes.
@joeythompson35793 жыл бұрын
Is it clean does it splatter
@Rooster_Radio3 жыл бұрын
Splatters all over like the Mexican food you had for dinner last night
@highwayman12243 жыл бұрын
@@Rooster_Radio 😂😂😂😂😂😂
@fbsocialsitesecrets2 жыл бұрын
@@jamesvw769 you crack me up. Keep checking KZbin, I'm sure you've missed an amp video you haven't commented on about the legality of these products 😂
@havennewsome42813 жыл бұрын
hi do you have any kl 503 hd for sale???
@davidbrennan53 жыл бұрын
What is a good radio to use box stock with this amp?
@Rooster_Radio3 жыл бұрын
You probably aren't going to get maximum performance with any stock radio with this amp, but something like a McKinley would be ok
@davidbrennan53 жыл бұрын
@@Rooster_Radio ok thanks for the info. I wasn't sure how much wattage to drive it with, some folks I talked to said to keep it under 30Watts.
@Rooster_Radio3 жыл бұрын
@@davidbrennan5 these will take 35 peak. Regular McKinley does good after being tuned. Not quite 30 watts
@davidbrennan53 жыл бұрын
@@Rooster_Radio ok, thank you for your time.
@nevilleberghofer67913 жыл бұрын
i woud like to see you do a review useing ssb as what you have done is only halfe the job as a lot of people use ssb for DX so why did you only do halfe the job not good at all and not satisfied with the review and i am sure RM would not be satisfied either
@Rooster_Radio3 жыл бұрын
Not sure I really care? Not like I was paid by RM for doing a video or you? So why I should really care what you think is beyond me. Don't like review? See yourself out the door. The only difference in performance is the ssb delay, you mindless twit. Driving it with the same peak power will yield the same result of output power. There's your free lesson for the day. Do you approve?
@nevilleberghofer67913 жыл бұрын
problem solved unsubscrbe from an arrogant egotisticle jerk
@Rooster_Radio3 жыл бұрын
@@nevilleberghofer6791 thank you for the favor. Imbecile
@jasonblessing36443 жыл бұрын
Where you get these frot
@jasonblessing36443 жыл бұрын
From
@Robalo8443 жыл бұрын
can you test it on radio on ssb
@Rooster_Radio3 жыл бұрын
They will do the same on ssb with the same drive
@harrybatt9983 жыл бұрын
@@Rooster_Radio Do these sound OK on SSB, do you know?
@Gw0wvl2 жыл бұрын
The pre amps are less than useless ... They are untuned , So very wideband and prone to cross modulation and mixer products .
@patrickryan81683 жыл бұрын
No 1 would ever notice or hear or see a difference in 300 watts to 350 watts.😂
@Rooster_Radio3 жыл бұрын
No, but if you're using it to drive another amp, asa many do, it could be a more significant difference
@iraceban10793 жыл бұрын
@@Rooster_Radio Can it be used as a driver? What is the lowest power output obtained ? Thanks
@netautorisationnetautorisa5453 жыл бұрын
! i know you used "real big stuff" ...he !
@waltergurtner80172 жыл бұрын
In der Schweiz verboten 73/55 QRP
@sponduli Жыл бұрын
I can't get that stupid adapter piece off the back
@netautorisationnetautorisa5453 жыл бұрын
*300W ...HEHE MAYBE ... A **#BIG** ONE ..(I MEAN REAL POWER .. SAY HELLO TO **#ALL** )* HAVE A GOOD DAY/NIGHT ..MISTER *EUROPE DENMARK* (we must have some fun time .... we are still alive !!)