How many PSU's Do You Have? - Page 1
Forum section: electronics / general

author: Terabyte2007
author_rank: Frequent Contributor
timestamp: February 11, 2014, 01:04:41 pm
content: So, I think I need to form a support group for PSU hoarding.I just can't seem to get enough PSU's. I would like to hear from others with this same sickness!I have 8 lab supplies and about 175+ wall wart/pack supplies. {sigh...} - I finally sorted them, what a task that was!My lab PSU's are:- Rigol DP832A- B&K Precision 1655A- Mastech HY3005F- Korad KA3005D- X5045 Pro 30V 5A Digital DC Power Supply- Ikegami RC-IC Variable 1.5KV PSU- RS 12DC 5A Fixed- Elenco XP-625I won't even begin to list the pack PSU's!

author: AndreaEl
author_rank: Contributor
timestamp: February 11, 2014, 02:13:04 pm
content: I have in total 6 Power supplyTDK-Lambda ZUP 20-20 -- 20V 20A - Variable voltage and current with OVP and UVP2x Atten TPR3602A -- 36V 2A - Variable voltage and current.Atten APR1505A -- 15V 5A - Variable voltage and current.Atten APR12001A -- 120V 1A - Variable voltage and current.Atten AT1001D -- 10V 1A - Variable voltage. Very cheap this one. Quality is very bad...All Atten are low quality but can be good enught for my use. TPR series have 7 segment display, APR analog.Lot of time i see HP6632A, 6632B, Agilent E3641A on ebay, but for now i not need this precision and quality.

author: Terabyte2007
author_rank: Frequent Contributor
timestamp: February 11, 2014, 02:24:28 pm
content: Quote from: AndreaEl on February 11, 2014, 02:13:04 pmWhere did you get the TDK PSU? I need a good high current variable DC supply.

author: free_electron
author_rank: Super Contributor
timestamp: February 11, 2014, 02:27:09 pm
content: No idea. I never counted themTwo 6624aThree e3631Two e3632Three 3310One 3314And four or five others

author: AndyC_772
author_rank: Super Contributor
timestamp: February 11, 2014, 02:59:22 pm
content: 3x 6632B (0-20V @ 5A), and 1x 6634B (0-100V @ 1A).

author: Phaedrus
author_rank: Frequent Contributor
timestamp: February 11, 2014, 03:14:06 pm
content: About 10,000 or so in the warehouse, and a few dozen in my lab.

author: Terabyte2007
author_rank: Frequent Contributor
timestamp: February 11, 2014, 03:16:44 pm
content: Quote from: Phaedrus on February 11, 2014, 03:14:06 pmlol. Awesome!

author: Phaedrus
author_rank: Frequent Contributor
timestamp: February 11, 2014, 03:18:47 pm
content: Quote from: Terabyte2007 on February 11, 2014, 03:16:44 pmWould you like an ATX PSU or a 19V laptop adapter?

author: Fsck
author_rank: Super Contributor
timestamp: February 11, 2014, 03:21:39 pm
content: Quote from: Phaedrus on February 11, 2014, 03:18:47 pmI'll take any dual or triple redundant PSUs if you have any decent quality ones for free or cheap!

author: echen1024
author_rank: Super Contributor
timestamp: February 11, 2014, 03:22:31 pm
content: Agilent E3610AHP 6114ACustom Build LT3080 supply in a Simpson 260 transistor tester box.

author: Phaedrus
author_rank: Frequent Contributor
timestamp: February 11, 2014, 03:23:27 pm
content: Quote from: Fsck on February 11, 2014, 03:21:39 pmSorry, only in the server room and we need them.

author: Frost
author_rank: Regular Contributor
timestamp: February 11, 2014, 03:37:50 pm
content: Only two AMRELOne LPS 301 and a LPS 304I am looking for a PD 2020 for a while now.But here in germany, I think it's easier to buya T-Rex skeleton or a space shuttlethen one of these pornographic PD PSUs

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: February 11, 2014, 03:51:03 pm
content: 2x Farnell LS30-10 - oldie but goodie - probably favorite PSU - small & light & full schematics in manual!Agilent 6632AXantrex 150V 7 amp (ouch!)Xantrex 600V 1.7A (Scary!)Tenma 72-8345 ( mostly used when I nedd a small PSU away from home)Huge 1kw telecom rackmount PSU 0-48V at 20A - most often used for charging car batteryAnd of course a gazillion wall warts, bricks and some random big-ass SMPSUs

author: Fsck
author_rank: Super Contributor
timestamp: February 11, 2014, 04:00:53 pm
content: *HP* E3615A*HP* E3620A*HP* E3630A*HP* 6220BKeithley 220 current sourcePower Designs 2020B2 cheapo wung hung lo 30v 5a supplies I was hoping to rebuild better... yet I lack the time =\You can probably guess that I like HP's older stuff, and don't see the point of having silly Agilent or Keysightblah tagged gear that they haven't significantly improved on.

author: uoficowboy
author_rank: Regular Contributor
timestamp: February 11, 2014, 04:04:55 pm
content: I have:HP 6114APower Designs TW5005WPower Designs 5020HP 6236BHP E3630AHP 6012A (60V, 50A, 1KW)The first two are my most used power supplies. The last two are currently on Ebay looking for a new home, but for now they are mine.

author: c4757p
author_rank: Super Contributor
timestamp: February 11, 2014, 04:34:43 pm
content: Power Designs TP343A: +/-25V 2/2.5A bipolar tracking, 15V 2.5/5APower Designs 2005: 20.000V 500mAPower Designs HV1547: 3kV 40mANot counting various prototypes of my PSU kit - I don't reallyusethem.

author: Galenbo
author_rank: Super Contributor
timestamp: February 11, 2014, 05:59:13 pm
content: A) Velleman stabilised with Voltage and Current indicator.B) ATX pc wicht gives me 5V and 12V

author: robrenz
author_rank: Super Contributor
timestamp: February 11, 2014, 07:28:17 pm
content: (1) Keithley 2450 SMU 1A 200V 20W max.(2) HP 6114A 40V 40W max.(2) HP 6115A 100V 40W max.(2) EMI/Lambda BOSS 20V 10A 200W max bipolar operational power supplies. (big op amp good to 20kHz)(1) Power Designs 2020B 20V 2A(1) Power Designs 2010 20V 1A(1) Power Designs 2005 20V 0.5A(1) Power Designs 6050 60V 5A 60W max.(1) Mastech GPC3030D 2X 30V 3A tracking(1) Revlectrix 13.8V 28A switcher(1) Rigol DG1022 FG(1) Preamble 1855 diff amp with precision +/- 15V internal supply 100µV resolution(1) Tek 7A22 diff amp with dc offset supply(1) Tek 7A13 diff amp with dc offset supply(1) Airco AC/DC 75v 250A supply (Tig welder)

author: Fabiusp98
author_rank: Contributor
timestamp: February 11, 2014, 07:42:18 pm
content: QuoteDo you work at NASA?I have a 5v battery pack and an OneHungLow wallwart variable voltage power supply.

author: Phaedrus
author_rank: Frequent Contributor
timestamp: February 11, 2014, 07:56:14 pm
content: Quote from: Fabiusp98 on February 11, 2014, 07:42:18 pmI work for a company that sells ATX power supplies.

author: nanofrog
author_rank: Super Contributor
timestamp: February 11, 2014, 07:56:53 pm
content: Power Designs TP343BMisc. wall warts and other hacked together crap otherwise.

author: dr.diesel
author_rank: Super Contributor
timestamp: February 11, 2014, 07:58:27 pm
content: BK 9130 3-ChannelBK Isolated variable ACGW-Instek 4303S 4-ChannelMastech HY3005F 3-ChannelHeathkit IP 2717A High Voltage(2) Samplex 40amp 13.8v switchers diode auctioneered to ~300AH of batteries(~15) or so devices hanging off the above with a dozen or so homebrew LDOs as well.Variety of other small switchers.I no longer keep wall warts, clip the pigtail off and toss it.

author: IanJ
author_rank: Unknown
timestamp: February 11, 2014, 08:02:32 pm
content: Hi all,Farnell TOPS 3D (a homage to my electronics youth)CSI3003X5CSI3005XIII (I use this one the most)MAAS SPS50II (for powering large DC motors etc)And the newest member to grace my workbench........all home built:-Ian.

author: nanofrog
author_rank: Super Contributor
timestamp: February 11, 2014, 08:07:58 pm
content: Quote from: IanJ on February 11, 2014, 08:02:32 pmLooks really nice Ian.Did you customize the case yourself, or have it done (laser cut & etched?)?

author: IanJ
author_rank: Unknown
timestamp: February 11, 2014, 08:15:10 pm
content: Quote from: nanofrog on February 11, 2014, 08:07:58 pmUsed these guys.http://www.schaeffer-ag.de/Ian.

author: nanofrog
author_rank: Super Contributor
timestamp: February 11, 2014, 08:21:08 pm
content: Quote from: IanJ on February 11, 2014, 08:15:10 pmThanks.They even have a site for the US and CAN (frontpanelexpress.com), so I'll have to bookmark this.

author: robrenz
author_rank: Super Contributor
timestamp: February 11, 2014, 08:24:13 pm
content: Quote from: IanJ on February 11, 2014, 08:02:32 pmVery nice job there IanJ

author: CM800
author_rank: Frequent Contributor
timestamp: February 11, 2014, 08:47:39 pm
content: My PSUs are:2x Agilent 6632B 0-20V 0-5A linear programmable powersupplies1x Delta Elektronika SMX7220 0-72v 0-20A SMPS2x really shitty Lockmaster power units that i feel like i was ripped off even paying £20 each for them....1x Zenith 1950s 0-270v, 32A variac (i can push much more though it)1x 0-1200v 0-20mA spluttering power supply

author: AndreaEl
author_rank: Contributor
timestamp: February 11, 2014, 10:48:38 pm
content: Quote from: Terabyte2007 on February 11, 2014, 02:24:28 pmSorry for the delayI find it on ebay, final price 60€ (85-90$)It' a very good psu, it's used, internally is very dusty. Wen i open for clear it of sure i post some photo here on EEVBlog

author: Terabyte2007
author_rank: Frequent Contributor
timestamp: February 11, 2014, 11:23:23 pm
content: Quote from: robrenz on February 11, 2014, 07:28:17 pmNice!

author: Terabyte2007
author_rank: Frequent Contributor
timestamp: February 11, 2014, 11:25:49 pm
content: Quote from: IanJ on February 11, 2014, 08:02:32 pmVery Nice!

author: Terabyte2007
author_rank: Frequent Contributor
timestamp: February 11, 2014, 11:27:54 pm
content: Quote from: AndreaEl on February 11, 2014, 10:48:38 pmIf that's the PSU I think it is you got a hell of a deal!!!

author: lowimpedance
author_rank: Super Contributor
timestamp: February 11, 2014, 11:33:02 pm
content: Quote from: robrenz on February 11, 2014, 07:28:17 pmThats a comfortable number there, you need a few more multimeters to go with them.The Airco peeks my interest though, Im sure you could do some serious BBQ with that...as well as a little welding as the mood takes.

author: AndreaEl
author_rank: Contributor
timestamp: February 11, 2014, 11:38:26 pm
content: Quote from: Terabyte2007 on February 11, 2014, 11:27:54 pmMy english is not good enought for translate it...You mean good or bad?

author: dr.diesel
author_rank: Super Contributor
timestamp: February 11, 2014, 11:41:25 pm
content: Quote from: AndreaEl on February 11, 2014, 11:38:26 pmGood,

author: AndreaEl
author_rank: Contributor
timestamp: February 11, 2014, 11:46:09 pm
content: I see now the price of this new power supply... More than 1000$Mine is with a lot of dust and i think with a lot of work hor, but....

author: NiHaoMike
author_rank: Super Contributor
timestamp: February 12, 2014, 12:30:06 am
content: My main bench PSU consists of a module I pulled out of an old external hard drive (5V at 3A and 12V at 2A) along with a homemade 1.5-18V at 3A linear supply, both isolated from each other and packaged inside an old AT PSU case. (I built that a good 10 years ago or so.) Also have countless wall warts of various voltages, a dozen or so ATX PSUs, a few proprietary HP PSUs, and a few other modules lying around. And a 150VA isolation transformer made by rewinding some halogen lamp transformers.

author: Terabyte2007
author_rank: Frequent Contributor
timestamp: February 12, 2014, 12:54:21 am
content: Quote from: AndreaEl on February 11, 2014, 11:38:26 pmYou got a VERY GOOD Deal!

author: echen1024
author_rank: Super Contributor
timestamp: February 12, 2014, 03:34:28 am
content: Quote from: IanJ on February 11, 2014, 08:02:32 pmDo you have a schematic for the home built one? I'd be interested.

author: GreyWoolfe
author_rank: Unknown
timestamp: February 12, 2014, 04:10:45 am
content: Agilent E3610A, Astron Vs-35M and a modified Elenco XP720K.

author: Galenbo
author_rank: Super Contributor
timestamp: February 12, 2014, 07:26:05 am
content: Quote from: echen1024 on February 12, 2014, 03:34:28 amIf you get to correctly entring his website address in your browser, you'll see all info.I got first to the politician, then the musician, 3rd time the good one.http://www.janjohnson.com/http://www.janjohnston.com/http://www.ianjohnston.com/

author: TMM
author_rank: Frequent Contributor
timestamp: February 12, 2014, 10:47:53 am
content: Just a Jaycar/Powertech MP3087. Dual channel version of the one Dave reviewed eons ago:I modified mine with 10 turn pots for current / fine voltage and 3 turn for coarse. It's a pretty good supply apart from messy internal wiring and overshoot on power up. I just get in the habit of not leaving anything plugged in when i turn it off.

author: nctnico
author_rank: Super Contributor
timestamp: February 12, 2014, 11:34:02 am
content: My list is not so long:- One I build in school (which is now retired)- Voltcraft TNG245 2x40V 2.5A (only used it 2 times in the past 20 year)- HP 6002A 50V/10A/200W (always on the bench)- Voltcraft PS1302 30V 2A (with front post mod and 10 turn pot for voltage)- 2 HP6024A (60V/10A/200W)- 2 HP6012A (60V/50A/1kW)When buying a PSU I try to pick the ones which are compact and light so they are easy to move around in my office/lab.

author: Terabyte2007
author_rank: Frequent Contributor
timestamp: February 12, 2014, 01:10:41 pm
content: I love these replies, so many cool PSU's! I think I have a sickness, I now have more ideas for additional PSU's. Sigh! The wife is gonna kill me!!!However, I do see some with switching supplies. Call me old fashion, but I prefer a good old linear supply, they have there cons but supply clean DC.Any of you using switching supplies in your projects especially RF had any problems with them?

author: Dave
author_rank: Super Contributor
timestamp: February 12, 2014, 01:19:48 pm
content: -HP 6632B-HP 66311B-HP E3631A-HP 6611C-HP E3612AAll of them, except the last one, were bought used through eBay.

author: nctnico
author_rank: Super Contributor
timestamp: February 12, 2014, 03:37:33 pm
content: Quote from: Terabyte2007 on February 12, 2014, 01:10:41 pmAs usual it depends. A linear PSUs can have mains hum on the output. That is harder to filter than HF residu from a switching power supply.

author: Rigby
author_rank: Super Contributor
timestamp: February 12, 2014, 08:12:38 pm
content: I have the same affliction. I have all the power supplies I need currently, and then some, but I still cruise eBay daily looking for more.Power Designs 3650-SHP 6286AHP 6201B <-- this one can't seem to max voltage & current at the same time, but I'm not sure if that's by design or due to a fault.Rigol DP832

author: Terabyte2007
author_rank: Frequent Contributor
timestamp: February 12, 2014, 08:17:09 pm
content: Quote from: Rigby on February 12, 2014, 08:12:38 pmI know the feeling. Every PSU has it's own character. It's a sickness I tell you!

author: Terabyte2007
author_rank: Frequent Contributor
timestamp: February 23, 2014, 01:16:37 am
content: Here I go again!After a visit to my local Electronics Surplus Store, I came home with a Qualidyne (Now TDK Lambda) 80A 5V DC power supply with two additional 12VDC 8A channels. It works great and has OVP and V-Adj pots to get precise outputs. It also has V-Sense inputs for tracking V for what I would presume works with the OVP. If I get some time yet this weekend, I'll do a teardown to have a look inside. Here are the pics! My wife just shook her head!

author: peter.mitchell
author_rank: Super Contributor
timestamp: February 23, 2014, 07:29:35 am
content: 4 triple output bench supplies and about 500 fixed voltage supplies; at prices liketheseeven for parts it's a bargain, i mean, to get $1.10 value out of it what do you need to salvage from it? an IEC socket? A high static air pressure fan? A large toroid? A small heatsink? A fist full of sil pads?

author: particleman
author_rank: Regular Contributor
timestamp: February 23, 2014, 07:42:15 am
content: I only have 1 Agilent 6634b, and a small PS built into my trainer.

author: Terabyte2007
author_rank: Frequent Contributor
timestamp: February 23, 2014, 12:31:53 pm
content: I picked up that Qualidyne for 20 US Dollars. I was looking for a high current low voltage supply and this one called out to me! It's rated for 80 Amps on the 5V out and up to 8 Amps on the 12V channels which is a bonus. It is a switching PSU but seems very well built. It is a beast, requiring about 10.2 Amps on the input at 120 and about 5.9 Amps for 240.

author: TerraHertz
author_rank: Super Contributor
timestamp: February 23, 2014, 01:46:22 pm
content: Power supplies--------------HP 6263B 0-20V, 0-10A. Qty 2. OK (have manual)HP 6264B 0-20V, 0-20A. Qty 1. OK (have manual) (broke, fixed 20101028)HP 6269B 0-40V, 0-50A. Qty 1. OK (have manual) I love this monster! Requires 15A mains socket.HP 6263B 0-20V, 0-10A. Qty 1 No controls (have manual) 'no controls' were slave units. Can convert.HP 6267B 0-40V, 0-10A. Qty 2 " " (have manual) Have new wire wound pots for all these,HP 6268B 0-40V, 0-30A. Qty 3 " " (have manual) but still missing the matching HP knobs.HP 6130C Digital Voltage Source. Qty 6. +/-60V, +/- 1.5A (have manual)HP 6002A power supply 0-50V 0-10A CV/CC, HPIB interface. Works, nice! (manual on way)HP 6205B dual power supply. 0-50V 300mA / 0-20V 600mA (have pdf manual)Kikusui PAD300-1A 0-300V, 0-1.2A Qty 2 OKTakasago TMO-360-022 0-350V, 0-250mA OKLAB 522 Dual 0-30V/0-2A worksTPS-4000D Topward Digital dual tracking power supply. Works.Perini Scott Regulated power supply. Single 0-30V, 2A. Works.Kepco model CPS 6-22M 0-6V, 0-22A. Works.Home made (long, long ago)--------------------------Dual 0-25V, 0-2A, independent or tracking, CV or CC.Fixed +12V 1A, -12V 1A, +5V 3A.Stereo Amp with DC-servo mode, 0-50KHz flat.High power----------IREM N3-X75DM 1600W 3-phase Xenon lamp driver. 45-95A, 22-37V DC. (Have schematic. To do: add metering)Spellman 0-200KV 2mA HV DC supply. (have manual)Spellman + & - 0-10KV dual tracking supply.Resolute stick arc welder. 20-150A AC.Jasic AC/DC 200 TIG welder. (works but fault with pulse mode. Todo: trace full schematic)ESAB smashweld 250 MIG welder (Have traced out schematic)Variac 0-260V, 10A, (Yokoyama SB-10 2KVA) with circuit breaker & 0-10A meter.Isolation transformer 240V:240V, 500VAStep-down, 240V to 110V, 500VAMatsununga Stavol SVC-2000ND-II 2KW 240VAC -> 110VAC regulated stepdown. (motor driven variac)The standard big box full of wall barnacles.Several boxes of assorted salvaged switchmode supplies.Active Loads------------ACDC Rack unit with:- 1 x EL301 controller. (have manual) Converted to 240VAC.- 3 x EL300 Load units. (manual on way) Still 110VAC. Hard to hack to 240VAC. Fan is 115VACACDC Rack unit with 2 x EL750BR-2-2 load units, 0-60V, 0-200A. (think I bought manual, can't find it.)(New xformers wound. Converted to 240VAC.)Rack mounted passive load block, fan cooled, strappable. Presently 0.8 ohm, 2KW.Memorabilia-----------BWD Dual Power Supply, 246A Broken V meter. No manual yet.BWD Dual Power Supply, 242A Needs work. No manual yet.

author: Terabyte2007
author_rank: Frequent Contributor
timestamp: February 23, 2014, 02:03:18 pm
content: Quote from: TerraHertz on February 23, 2014, 01:46:22 pmSweet Jesus!

author: Terabyte2007
author_rank: Frequent Contributor
timestamp: February 23, 2014, 02:12:09 pm
content: So, in one of my tests of the Qualidyne 80A 5V supply this morning, I pushed it to 50 Amps with a .1 Ohm 1% 250W power resistor, and she was perfectly stable. The voltage did not change even 1 digit! Although, I thought the jumper cables I used were good enough for the job, but apparently not! The rubber started to melt and stick together! Doah!

author: SeanB
author_rank: Super Contributor
timestamp: February 23, 2014, 03:34:27 pm
content: Probably the cable resistance is the same as the resistor resistance. Try the Mike Harrison method of using a length of steel wire and a bucket of water.

author: Terabyte2007
author_rank: Frequent Contributor
timestamp: February 23, 2014, 04:00:52 pm
content: Quote from: SeanB on February 23, 2014, 03:34:27 pmYup, it was. I used my Agilent Bench DMM using my Kelvin clips and the resistance was too high. I found some better lower resistance wire which worked quite a bit better.

author: MarkL
author_rank: Unknown
timestamp: February 23, 2014, 08:01:41 pm
content: HP E3631A 0-6V @ 5A, dual/tracking 0-24V @ 1AHP 6271B 0-60V @ 3AMicronta 22-126 0-24V @ 1AGS 1301A dual 1.3-18V @ 1A, 5V @ 1AHome brew +5V @ 5A, +12V @ 3A, -12 @ 200mAHome brew switchable +/-12V or +/-15V tracking @ 0.5ASpellman unmarked model 0-15kV @ 2mA (but does >4mA)"One of these things is not like the others..."The Spellman is interesting. It was looking so lonely in the corner at a local university clean-out sale I couldn't help myself. It's all tubes with a couple of tuned HV air-core transformers wound with Litz wire and a voltage doubler on the last stage. After some restoration effort it actually works pretty well and has surprisingly good regulation.I've included some pictures of it below. Can anyone ID it for a model number or other info? I'm guessing it's vintage around 1960.

author: SeanB
author_rank: Super Contributor
timestamp: February 23, 2014, 08:21:21 pm
content: Here is the one I use at work to power the radio and other assorted 12V stuff as needed. I accidentally pooched this one earlier this week, by accidentally shorting the output for a while and not noticing it as radio was turned low and I was busy. Tried it and saw no voltage, so went up on the wall where it is mounted out of the way, opened the cover for the first time in a decade or more and looked inside. Mains transformer warm, so thought and replaced output 10A fuse. Radio comes on and I go down and check output voltage. Mmm 22V, something could be wrong. cut out the one pass transistor ands still 22V, so cut out the other and zero volts. Connect first one back ( TIP3055) and it works again. Deciding whether I should replace that other TIP3055, or get some better devices instead and do both, or just leave it. will have to look when next at A1 radio and see what they have in stock. Will prefer a TO3P fully isolated part so it is easy to mount without needing fiddly mica washers.

author: lowimpedance
author_rank: Super Contributor
timestamp: February 24, 2014, 03:30:32 am
content: Quote from: TerraHertz on February 23, 2014, 01:46:22 pmA 'gentlemens' quantity then !.For reference of those with a BWD246 ;

author: TerraHertz
author_rank: Super Contributor
timestamp: February 24, 2014, 11:36:54 am
content: Quote from: lowimpedance on February 24, 2014, 03:30:32 amOops. Those 'no manual yet' are wrong, I had found manuals for both, but forgot to update the list.http://www.eserviceinfo.comhttp://www.kevinchant.comhttp://elektrotanya.comThanks for the nice schematic copies though.What I'm still unable to find, is a manual for a BWD Oscilloscpe - Model 530A.

author: Mandelbrot
author_rank: Regular Contributor
timestamp: February 25, 2014, 02:39:19 am
content: I am sad to say that I am only in the possession of one PSU, and I am actually borrowing it from a friend.I am in the process of building my own supply, but the one I am borrowing is a Tektronix CPS250 that is quite out of calibration.

author: Marc M.
author_rank: Regular Contributor
timestamp: May 22, 2014, 12:19:58 am
content: The ones currently on the bench are:Power Supplies==========ECI Combination Power Supply2x 0-25vdc @ 1A0-300vdc @ 100mA0-120VAC @ 1.75A6.3/12.6 VAC @ 1ADalco 12vdc @ 27AHP 6268B 0-40vdc @ 30ABLH Electronics 0-25v @ 20A (Rebranded Sorenson)Kikusui PAL 35-10 0-35vdc @ 10A (3 of these)Rigol DP8322x 0-30vdc @ 3A1x 0-5vdc @ 3AHeath Schlumberger SP-27170-400vdc @ 100mA0-100vdc @ 1mA6.3/12.6vac @ 4/2AStaco 3PN1010 10A VariacRCA VIZ Isolation TransformerKikusui PLZ50-50A Electronic Load0-50V 0-50A 300W max.Lots of other miscellaneous supplies in storage. For some reason I find myself trolling Fleabay looking for more