@Gmtail 4 ай бұрын
I modified the HP1200 supply with the black power connector quite a few years ago so I could get 14.6volts. Thank you for showing the mods on the 1200sb(blue power connector). Can't wait to mess around with one. I did make a variable external voltage control for the black connector 1200, and had it controlling 2 of them. It's still working like a charm as my bench power supply.
@thomasperina2990 Жыл бұрын
Good Evening BBI FANS and Friends: Nice job Luke with these HP switching modules. Your hard work & talent is much appreciated. My best as always to you & your family, TMP, Unit 22 from N.J.
@KARNAK47 Жыл бұрын
Sweet BBI, I've been using them for about five years and I appreciate the extra tip on the resistors. 516 a local Builder here in Indianapolis has been using those and a couple of different versions. And there sure are a lot cheaper then the meanwell power supplies also longer-lasting. Peace and blessings out there keep up the good work. You're 47 around the fields of Indiana the all seeing third I got down right there.
@daveN2MXX Жыл бұрын
This is an AWESOME video. It is exactly what I'm running with my als500m- works great.
@stevenorcutt3913 Жыл бұрын
Super cool I'm thinking 3 of these tied together then hooked to an insulated copper feed bar should be enough to handle a couple radios and a transistorized amp when I'm not running the base amp. Thank you Luke and 249 for sharing this knowledge 😁
@carlubambi5541 Жыл бұрын
😊lpllplll L Lllplll Llll
@carlubambi5541 Жыл бұрын
Fantastic power supply for the price and great modification
@dieseldes6578 Жыл бұрын
Mr BBI, some feedback if I may. I purchased two of these units for some projects that I had. One was to be used as a simple 12v supply to a 3000lb winch for my tower, which it does very well without modification. Good by old lead acid battery and charger setup. Its fed 230/240v volts (I'm in the UK) and it drives the winch at its nominal 60-80 amp load. It even supported a peak of 135a when I deliberately stalled the winch without tripping out! Excellent I then modified the second unit as i wanted a good quality shack 13.8 (ish) volt supply for my ham gear. To get 13.8v i needed 20K of resistance across the voltage adjust point, and i used your suggested 51k on the crowbar circuit. So far so good. I will report back if i have any issues when this is in use. I can confirm the units are very quiet acoustically(less noise than my linear unit!) and I haven't had any noise on my receiver from them yet. Cheers Des, GI0UTE.
@myszaca Жыл бұрын
Did the same mode 20k and 51k, 13.8V. Works awesome.
@earthquake7769 Жыл бұрын
Thank you Mr.BBI your the best teacher I know. Bless you and yours
@petersherrouse33 7 күн бұрын
A *really* needed hack to this PS is to add an adjustable current control. That is to make it a constant current PS with a max voltage limit. This is needed for viable battery charging. Some one how figures this out would be a hero !
@worldradio520 Жыл бұрын
"Now i am going to talk like a ham operator" lol. Thanks for the video great information and just a prime example of why you are the best and always will be
@BoxBuilderIdaho Жыл бұрын
Who me? Nope that a lot of people helped me get this way so it's not me it's all these other people
@worldradio520 Жыл бұрын
@@BoxBuilderIdaho being humble and willing to share information that is basically unheard of in your business. I have learned more from watching your videos then anyone else. I thank you sir
@PPNStudio Жыл бұрын
The now pretend you're a ham operator was so spot on. I laughed out loud.
@BoxBuilderIdaho Жыл бұрын
Lol if you only new.....
@Ducklafied Жыл бұрын
You need to try one one these... DELTA AHF-2DC-2500W-PE 2500 Watt Power Supply This is a 208 amp @ about 12.3V 200-240V input. can get them for around 30 to 40 bucks. I have a few here I'm testing with. Runs a sweet 16 with virtually no power drop. still trying to mod the voltage up and figure out the protection circuit . There is no info on them for mods anywhere. So this one is going to be a hard nut to crack. I did not have any noise on my IC-7300 receiver too which was a big Plus.
@slingslingbinks Жыл бұрын
Thanks for sharing all this Master Luke from 2WR/NB267
@chevyguy1128 Жыл бұрын
Thanks for sharing 👍 I will be calling you tomorrow this is awesome especially for someone on a fixed income like me I like the video so much I watched it 4 times
@buckaroobonsi555 Жыл бұрын
I have heard of guys slaving a bunch of units in a bigger box with larger slower moving fans and extra filter caps etc. They use an old school 555 Timer IC to mimic the RPM signal. They measure the pulses the unit expects to see an set the 555 IC to send that signal constantly. Oh I cut this from another reply. The fans in these units are usually 3 wire and the 3rd wire sends RPM speed signal to a controller. I have not done this myself though. They mount a bunch of these in a bigger box with big slow moving fans and large filter cap banks and then mimic the fan signal to keep everything happy! Hope this helps someone!
@brim1953 Жыл бұрын
Thank you, Mr. BBI for this really cool info i picked up 2 of these units ..looking to put one in a RCI 2995 .thats been plagued with power supply issues ...
@root7205 Жыл бұрын
I would think if you were to stack 2 or 3 of these and run a variable voltage option, you may be able to find a variable resistor within the value range needed for the crowbar circuit. You would just need to mark the values of your variable resistor on the outside of the cabinet or wherever mounted on a rack. Just an idea though.
@Bones469 Жыл бұрын
That is awesome. Now with clone 2879s becoming more easily available and hopefully closer to original specs, kind of makes me want to go retro lol. If I stacked them I'd have to pull from multiple house circuits LoL😅 Great Video.
@robertmeyer4744 Жыл бұрын
that why run on 240V . less AC input amps.
@Bones469 Жыл бұрын
@@robertmeyer4744 Right, that was later in the video and I had already commented. That is pretty cool auto switching too! If I did a stack, I would still probably use isolation diodes into a nice stiffening cap. I tell you, I may get one just to build a jump start booster. LoL 70+ amps is nothing to sneeze at lol.
@MFINK92 Жыл бұрын
Ordered 10 for the price now to just build out the power supply and get something that needs that many amps. thank you sir. good honest content
@buckaroobonsi555 Жыл бұрын
Not really. As you change the resistance value on the voltage side you would also need to change the resistance value on the crow bar protection side. It is not likely to be a linear relationship so you would need a programable system that would change both in relationship to your input. Not saying it could not be done but not in the fashion you are thinking about. These are designed to be completely and total stable with next to zero ripple and to run continuously for X number of hours and then be pulled and hot swapped for a new unit! imagine having 20 of these running under the control of another controller that brings them all seamlessly into play as needed. There is likely that capacity already on the board but without knowing the instructions in each IC it is hard to know where to start. In this situation it is better to say "Yes please!" and "Thank You" and take it for what it is! If you for instance had one of these NOS imagine running it at it's rated output for 8000 hours continuously at it's rated load and voltage and 95% of these in its doing that all day and night with out a hiccup! Try that on a non-server supply and in no time it would fail. At the rated 12.5V this on 200+V this unit would give BBi the full 100amps. Luke is trading some current capacity for more voltage but the total watts the unit can do stays the same. He is also making it less temperamental with regard to how fast the load can be applied with out tripping the protection circuit. Thanks for the share BBi!
@germanjohn5626 Жыл бұрын
Bird meters used to be the industry standard for power indication 50+ years ago when nothing else was available. Fast forward to 2023, no respectable professional engineer would want to use a Bird Thru Line meter to measure power they are a coarse indicator at best. The running joke is "Bird Thru line meters are for those that want to see lots of power where there is none".
@adamwhite3584 Жыл бұрын
I recon you prefer Dosey because lord knows RF engineers 50 years ago had absolutely no idea what they were doing. You made me laugh out loud !
@g0fvt Жыл бұрын
I have repurposed similar switchmodes before, they don't like the load suddenly removed, the response time means they tend to crowbar. Amazing value for money though... and the crowbar issue can be addressed...very tempted to buy a few of these, 14v will be fine for my purposes. Tempted to just use high current diodes to combine a pair, unfortunately that will whack the efficiency a bit. Thank you for taking the time to do the video...
@spoofe3 Жыл бұрын
Luke, thank you so very much for all of your videos. I am going to try and make one for my broke ass self . Love the comments about Bob and Fred . But this Fred just had 2 rods, 10 screws and 4 degreed cages added to my L2-S1 and finally getting to spend about 10 minutes to get my own damned socks on. About 3 years ago I had seen a video in one of my groups running a server power supply for his radio. But I never continued to follow-up with him. 73 2WR003 Fred in the Shed in the Swamps of Dinsmore Florida
@markw.7487 Жыл бұрын
Another Win. Thanks BBI. I have one of these up and running and a 2nd one on the way. The way your videos are done the haters are shut down. Thank you for your service to the radio community. Best 73 OM.
@manota85 Жыл бұрын
Wow! Mr. BBI i been messing around with these and have not been successful they always end up shutting down dude you're a BEAST NO DOUBT ABOUT THAT 73's
@28chicagovideogate50 Жыл бұрын
Awesome video mr. BBI. Thanks for taking the time to do this. Game changer. You da man. 28chicago got down. 73’s.
@robertray7562 9 ай бұрын
BBI your awesome,I came up with 14.39 and that's fine for me and it runs my Texas star 350 beautifully.
@MrEdcp 7 ай бұрын
Just got my DPS1200 SB and getting ready to do mods. Im going with the 9K and 18K resistors. I did not see in any of your videos if the resistors are 1/8,1/4 watt. Thanks
@user-sc2pp1vr1o Жыл бұрын
thank you for showing me about this little trick im new to cb. and i did my first one today i got 14.94 volts.
@AdamosDad Жыл бұрын
I bought one 3 years ago and have never modified it, they are very good for charging RC cars, trucks etc.
@garysinclair5193 2 ай бұрын
Very good video. OK, so I'm in the UK that uses 240v, would I still use the same resistor values? Also, when searching for resistors, they also mention eg., 1/2W 5% tolerance, is this figure important?
@kn3m Жыл бұрын
Thank you Bbi can you please make a video step-by-step how to do that thank you
@ChrisTeamOnyx Жыл бұрын
Fantastic video, I’ve been using them in Rc for some time now. With the increased voltage. How would I go about reducing voltage to 8v for testing motors ?
@martybennett9876 Жыл бұрын
I've been a fan of the HP for about 5 years now and I have always run them at the 12volts
@BertoldVdb Жыл бұрын
If anyone is interested, I can supply information on how to mod Delta BML 353 206/2 (~70A @ 27V charger/rectifier) for different output voltages. Also figured out digital control information for Emerson/Vertiv rectifier (eg R24-2500 and R48-3000, 24V and 48V at 2.5/3kW). All modules are or at least were quite cheap on the telecom surplus market. The digital control information likely also works for a 12V Vertiv rectifier module, but I never saw or touched one.
@BertoldVdb Жыл бұрын
BTW: The 48V model works as a very under-powered, but nonetheless functional, welder ;)
@mstover2809 Жыл бұрын
Be aware that there are typically TWO DIFFERENT VERSIONS of these power supplies. The PD version you show, and a PL version. The boards are somewhat different. Mods are not the same.
@user-zn8yr9bh6w 10 ай бұрын
Thank you Mr. BBI getting ready to try and do one
@goodyfpv2297 6 ай бұрын
Iv seen the DSP 1200fb A has been hacked on YT but they didn't show the video properly. they said to go on your page but I don't see it. Was it the same way you did the SB ?
@Tomahawk-415 Жыл бұрын
If a small switch was wired into the tabs up front instead of a jumper would that be safe to turn the power supply off and on? Wanting to hook two units together for a 200 amp 240v supply
@BoxBuilderIdaho Жыл бұрын
You got it
@DavidHarris-qn7em Жыл бұрын
Thank you kindly Brother Luke!
@someguy2637 Жыл бұрын
I like it! Once again your da man. Thanks for sharing your knowledge.
@everttaube4089 5 ай бұрын
Thanks in advance. Any detailed pics for exactly where to solder the resistors /size K? l did this once with a HPE 1200W DPS-1200FBA PSU but they are hard to find these day's That was only 2 resistors as l remember.
@TheAverybanks 8 ай бұрын
Thank you Sir
@nealhamilton3881 10 ай бұрын
Sub just for the humor! What do you think a good combo would be for running Just ham radios and ham related equipment? I don't have nor plan on right now to have any amps as I'm just getting into ham. My first radio is a Ft-857D but I plan on getting a 7300 or the new FTDX-10. Seems like most, at least 100W, radios use " 13.8 v +- 15% or 2V for a nominal range of 11.8 to 15.8V" as the range. Would trying for a 14.5-15V be a good landing place? I assume from the manual you don't want to go over 15.8V so that's where the cut off or Crow bar should come in before that?
@adamwhite3584 Жыл бұрын
After watching 3 times it's occurred to me maybe an experiment in destruction is in order. With some ratty amplifier that's been left unpaid and most importantly doesn't have Toshibas in it.. To see what happens if the crowbar protection After modification kicks in or fails to kick in entirely and the PSU Chernobyl's? I wonder what the rectified voltage is at the FREDs. Is there post regulation after high frequency rectification or is it controlled by the switchers feeding the toroidal with input amplitude while still an AC signal. I should get mine soon but I will want to know what it's failure mode is because they certainly have one. It's probably all good. But Toshibas are pricey to learn on!
@tonydagostino3441 4 ай бұрын
I also modified my DSP-1200 SB A with a 22k and a 56 resistor to get a perfect 13.84V for my Icom Ham radio. Work fine for a few days but then went completely dead. Opened it up and noticed the 22k resistor got detached from the varible leg. Soldered it back on but doesn’t go on. It’s completely dead. is there a fuse somewhere in the PS? Any Clues if it can be fixed?
@027MC7 Жыл бұрын
Thanks BBI. I got one on the way to play with.
@myszaca Жыл бұрын
Great Video. Thank you for that. Got one also and did the mode. Working great 👍.
@theroguetomato5362 8 ай бұрын
Excellent video, thank you!
@ChristiannTyler 2 ай бұрын
Strange.. the lowest I can get using the resistors you recommended for 14.8v is 15.05 🤔
@chevyguy1128 Жыл бұрын
I agree sharing information like this is what keeps the cb community going 73's god bless
@adrianomarcuz7886 7 ай бұрын
Does anyone know the value of the voltage control potentiometer? Somehow managed to damage and lose the one on mine....Help please
@jlyle51 11 ай бұрын
BBI That finger you hit the wrong nail.
@makarov138 Жыл бұрын
I've got one of those power supplies that you waved across the screen at the beginning running my old Cobra 148GTL radio. Has been working for 5 or more years perfectly. It peaks at 20 amps which this radio never draws that. But the darn fan runs all the time. Can't figure that one out. Have you had this problem before with these?
@greggibbs1553 Жыл бұрын
Well Luke Miller this is beyond my soldering skills and eyes....lol
@BoxBuilderIdaho Жыл бұрын
Starting to think even me to had to put on the jeweler's loupe last night after about 20 of them
@darylmorse 2 ай бұрын
I need 13.6-13.8 volts, but only 50 A or so. Does anyone know the resistor values for that voltage?
@lordmetal3842 Жыл бұрын
might be worth checking out gaming computer power supplies..they can get big numbers and some are switchable ..obviously they are more pricey but could be another option.they have built in fans and such for cooling.
@mstover2809 Жыл бұрын
Normal PC PSUs have unneeded voltages and usually cost MUCH more. Server PSUs are typically designed to be run 24/7/365 with minimal down time so are the better choice.
@robertmeyer4744 Жыл бұрын
They look great. was wondering about the hash noise on them. The last 2 blue label base amps I did was china PS blown. 1 converted to ICA IRON core outher Meanwell supply's but the cost. I got 2 meanwell SE 1500-15 on my test bench. they RFI pretty quite. but the cost ! 73's
@TheLonesometoad Жыл бұрын
I can't find the seller.
@flhusa1 Жыл бұрын
I make /run a different hp server power supply that is 65 Amp rated at factory settings. I figured out how to get the voltage to 12.55 cont I nious with a drop of only .05 when approaching max output. I have the fan also running so slow it can hardly be heard. It only ramps up approaching max current output. The power supply has reverse polarity protection and overload protection and direct short protection. Almost impossible to blow up. Protects the equipment it is powering. All this is accomplished without removing the cover. All done with jumping pins on the end. I connect 2 together using the common share pin connection . I use number 6 all copper welding cable for out put connections. I have and my friends I built some for have left them running for over 4 years continuously. Never had a failure yet but if one fails I will replace it no charge. I hooked to carbon pile load tester and got 70 amps without shutting down and that was good enough for me. Search for pin outs for the common share connection when combining. It equally distributes the load. When over voting from factory design the early attempt proved to be unreliable and failures. I hope this has been solved by BBI. 12.55 with no current or little voltage drop is perfect for Mr with a quiet fan. These were designed to run 365 days a year from the factory. Never got a bad one from ebay just dirty sometimes and I believe all were used to some extent.
@GusNava Жыл бұрын
Where do you modified the fan
@spaceflight1019 Жыл бұрын
Wonder what the DC purity looks like as the load increases over time?
@rocknroooollllll Жыл бұрын
You know "crowbar" is not used for current. It's for over VOLTAGE! Normally a triac fires at the max voltage threshold, and causes the fuse to blow.
@BoxBuilderIdaho Жыл бұрын
Very well aware I'm. Very very well aware but when the Crowbar protection is automatically set so high you cannot search even half of the rated output for the power supply it needs to be adjusted at that point
@williamhensley7745 Жыл бұрын
Thank you so much Luke!!!!
@lawrencekb5zzb551 Жыл бұрын
Could you use a variable resistor to set the voltage...make it easier to parallel 2 or more together?
@galileo_rs Жыл бұрын
You can parallel these out of the box, there is also a load sharing pin on most ... Best is to get the server that these go into an build a hot plug redundant PS. See the top comment that I posted earlier.
@chickenlittlesound Жыл бұрын
I ask about the resistance watts because I use 1 watt (15k-51k), and it looks like it doesn't work. Yours look smaller. After the mod works for a minute and I reconnect the power and the fan works only at a high speed and no green led, no voltage output any help? Thank you
@joshchilders-fy1pk Жыл бұрын
Bbi I really think you're on to something here.
@1883GotDown Жыл бұрын
My life would be changed LUKE if I can figure out how to voltage mod the Dell E2700P-00 220A I can hold in the palm of my hand ✋
@beekeeper8474 Жыл бұрын
Fyi the 1400 watt 240v can be used as well
@Tomahawk-415 Жыл бұрын
Can you show us where to solder the resistor for the fan and the value please and thank you, I ordered 4
@brettcaporale8031 Жыл бұрын
Well you going to start making a little boxes and putting them in there and sell them?
@chickenlittlesound Жыл бұрын
1w metal film resistors can be used? what type did you use?
@mrglabs4778 Жыл бұрын
Curious what the min/max voltage range was when you used the 9k and 18k ohm resistors. Assuming the pot still sets the voltage. Thanks
@mrglabs4778 Жыл бұрын
10k/20k I’m see a range from 15.4-16v .
@minibikemadman Жыл бұрын
finally!! I have 2 of these for sale actually I had 4. I have access to unlimited amounts of them for free. Im throwing one in a 1x2. trying to mount them is what I am figuring out and howto tie them into a switch.
@mcconja Жыл бұрын
Free? I’ll take four. 😂
@W8ASA Жыл бұрын
Has anyone measured these for RF noise?
@BoxBuilderIdaho Жыл бұрын
Zero
@johnwhipple7072 Жыл бұрын
been using them for awhile for just radio power or 2 pill testing without any mods 12.2 volts
@sammack93 Жыл бұрын
i have been using one of these for years as psu and its been great. 🤷♂️
@camphill 10 ай бұрын
Installed a 15k on the outside and 51k on the inside. Powers up at 14.4 volts then after maybe 20 seconds voltage drops to nearly zero with no load. Triple checked the solder points and no shorts. Any ideas?
@BoxBuilderIdaho 10 ай бұрын
Yeah the Crowbar protections taken over so drop the resistor down to 9k for the Crowbar protection which is the one on the inside of the unit
@camphill 9 ай бұрын
Working perfectly at 14.2V! Thanks for the video!@@BoxBuilderIdaho
@chickenlittlesound Жыл бұрын
I use 1 watts resistor after the mod turns on with 13.9 volts, but after 1 min, the voltage lowered to 13.3 no load. unplug the power and plug again, and no power is coming out. No led light and fan stock on high speed. Do you have any idea what could be wrong?
@BoxBuilderIdaho Жыл бұрын
I would double-check your solder joints on the inside and make sure that you've got decent insulation all around the leads of your resistors.
@jimhall9360 Жыл бұрын
Does the type and tolerance of the resistors used matter?
@sumolee1761 Жыл бұрын
So how much would it cost 2 build a 1000 amp power supply
@excitedplasma1630 Жыл бұрын
nice job,,, thanks for sharing man
@RayFlores-iv3oj Жыл бұрын
Been trying to find a breakout board for this model. 1 website claims the fb breakout board will work with the sb a. Anyone know for sure? I know Im not the only one thats curious!! SmogControl 3311 TJ Border Controller
@galileo_rs Жыл бұрын
RC and crypto mining guys have been hacking these for years now. If you buy an old server, that these go into, you get a nice slide slot and typically an adapter board where these plug into. You can use that to get a redundant, hot pluggable PS that does load sharing. These can be also connected in series for higher voltage but that is bit more involved operation.
@irish1217 Жыл бұрын
Just wanted to say you really need to pay attention to the hstns# also I bought 2 dps1200sb and mine were hstns pl30 not pd30 totally different control board
@johnq8792 Жыл бұрын
I ordered mine with offer and BBI sent me, it says 467 sold
@leonbrown3dtec990 Жыл бұрын
Very well done 👏
@ejgaming0161 Жыл бұрын
hello sir,i have 1200w 100A max hp power supply PD-19,just wanna ask if i done that trick can i charge my 22A Lifo4 battery pack?will the battery damage or someting,?thanks in advance!🙂
@jumax23 Жыл бұрын
What and where do you put the resistor for the fan?
@jumax23 Жыл бұрын
By the way, I love your vids
@matthieu8292 Жыл бұрын
amazing!
@351radio2 Жыл бұрын
plenty of power just don't like the turbo prop
@SDS-1 Жыл бұрын
How do they work stock at 12 volts??? Is it still very sensitive to sudden current?
@BoxBuilderIdaho Жыл бұрын
No
@BoxBuilderIdaho Жыл бұрын
Alright let me start over they work fine they're not too overly sensitive
@SDS-1 Жыл бұрын
@@BoxBuilderIdaho lol 😂 thank bud
@SDS-1 Жыл бұрын
@@BoxBuilderIdaho I'm thinking they would be perfect for car audio Deck tinkering. 12v would be all id need 🙂✌️
@buckaroobonsi555 Жыл бұрын
@@SDS-1 Yes! If you wanted to say run a 5Ch car amp in your garage or basement for some affordable power. Most of these units use a 3 wire fan and the fan sends RPM info back to the controller. I have heard of guys slaving a bunch of units in a bigger box with larger slower moving fans and extra filter caps etc. They use an old school 555 Timer IC to mimic the RPM signal. They measure the pulses the unit expects to see an set the 555 IC to send that signal constantly.
@cornelishummel7987 Жыл бұрын
Better give schematics then its easy too make greetz from holland 73,
@chevyguy1128 Жыл бұрын
How much would you charge to modify one for 14.9 v if I bought one because I have a nerve condition can not solder my hands shake to much when trying to do certain things
@BoxBuilderIdaho Жыл бұрын
I could set that up. Call me tomorrow
@chevyguy1128 Жыл бұрын
@Mr BBI will do thanks
@chevyguy1128 Жыл бұрын
@@BoxBuilderIdaho I called you left you a voice mail I know your busy you can call me anytime thanks
@chickenlittlesound Жыл бұрын
@@BoxBuilderIdahohow we can contact you?
@ThumperKJFK Жыл бұрын
👍👍✌
@ElectronicMechanic50 Жыл бұрын
I just ordered 4
@johnnyjohn6527 Жыл бұрын
$25 to buy them $36 to ship them into the UK
@chevyguy1128 Жыл бұрын
I'm buying 2 from the amplifier master bbi talked to him on the phone getting them setup for 14.9 v
@crazybonescbshop4602 Жыл бұрын
loved song lol
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