A not too iffy bench power supply brand

[Electro Fan]

Just tripped across this HANMATEK HM305 switching power supply:

https://www.amazon.com/HANMATEK-Programmable-Variable-Regulated-Interface/dp/B07SS77N7K

If you can accept a switching power supply with some extra ripple this looks like a very good value.  Pretty happy user reviews and it has most of the entry features you might expect.  It has one feature that would be nice to have on the Korad:  displays watts (but with a bit of multiplication that can be easily determined).  The footprint looks similar (or maybe a tad larger?) than the Korad but at half the price it could be attractive for some users and uses

[Dwiea]

What would be an okay price for a used TTi CPX200?

[bd139]

< £200 for a tidy one.

Now is not the time to buy one TBH. There are quite a few bargains around usually. If you need an interim supply, may be worth buying a meanwell SMPS module from RS or somewhere that does the job and holding out.

Bargains as in my PL330QMD linear (2x 30V @ 3A / 1x 60V 3A / 1x 30V 6A) cost me £125 but they fucked up the packaging terribly so refunded the entire amount and said keep it 

[Dwiea]

Hmmm that seller of the tti stuff only has 1 feedback. Think I'll skip it :/

[bd139]

It appears to actually be TTi themselves who are selling it based on products and location. They're very reputable.

[Dwiea]

The testequipmentsales seller on eBay? What makes you think it is tti themselves? He only has one feedback and no address.

Or are we talking about another seller.

[bd139]

Location: Huntingdon.

https://www.aimtti.com/ -> check bottom of page.

[Dwiea]

Location: Huntingdon.

https://www.aimtti.com/ -> check bottom of page.

Ah, I can't afford that

[coppice]

Tenma is the "house brand" of Farnell.

No it isn't. Look around Asia, and you'll find Tenma branded stuff all over the place. I'm not sure if they make anything at all, or if they only act as a middle man. They certainly act as middle man for a lot of their products, like the Korad power supplies.

[oPossum]

Tenma was an MCM brand.  MCM is now part of Farnell/Newark/Element14.

Tenma is a global brand, owned and operated by element14. It's distributed through these divisions.

From http://www.tenma.com/

[rdl]

In the U.S. Tennma brand was sold, and probably owned by MCM Electronics. Years ago Tennma might have actually made stuff, but in recent times I don't think it was much more than a label. Newark/Farnell acquired MCM a few years ago. The last Newark catalog I received had an entire separate MCM section.

[Electro Fan]

Looks like Farnell sells Tenma in the UK.

Single Output with computer interface
https://uk.farnell.com/tenma/72-2540/power-supply-1ch-30v-5a-prog/dp/2445412

Dual Outputs without computer interface
https://uk.farnell.com/tenma/72-10495/power-supply-2ch-30v-5a-adjustable/dp/2251947

[Dwiea]

What are those types of connectors on the tenma called? I guess you have to buy wires to fit these as I can't see anywhere that says you get them in the box with it?

[AVGresponding]

Not sure which connectors you mean, but the front panel outputs are standard shrouded 4mm banana jacks, you can use normal 4mm banana plugs in them or shrouded.
At the voltages you're working with, normal ones are fine.

[bd139]

If you buy the Korad/Tenma, buy it from CPC. They are cheaper even though it's the same company 

https://cpc.farnell.com/tenma/72-2540/power-supply-1ch-30v-5a-prog/dp/IN07294

https://cpc.farnell.com/tenma/72-10495/power-supply-2ch-30v-5a-adjustable/dp/IN06823

[Dwiea]

What are those types of connectors on the tenma called? I guess you have to buy wires to fit these as I can't see anywhere that says you get them in the box with it?

Thanks

[Mr. Scram]

No it isn't. Look around Asia, and you'll find Tenma branded stuff all over the place. I'm not sure if they make anything at all, or if they only act as a middle man. They certainly act as middle man for a lot of their products, like the Korad power supplies.

The Tenma website says "© 2018 Tenma, a Premier Farnell Company".

http://www.tenma.com/

[coppice]

No it isn't. Look around Asia, and you'll find Tenma branded stuff all over the place. I'm not sure if they make anything at all, or if they only act as a middle man. They certainly act as middle man for a lot of their products, like the Korad power supplies.

The Tenma website says "© 2018 Tenma, a Premier Farnell Company".

http://www.tenma.com/

It looks like Farnell must have bought them at some point. That might explain why they are no longer as common as they used to be in Asian shops. In the 90s they were one of the commonest value for money brands in places like HK.

[M0HZH]

Quite happy with the Tenma 72-10500 unit (dual 30V/3A linear). Has 5 memories per channel, can combine channels internally series or paralell, voltage is 4-digit accurate against the Fluke 8840A and the output is very clean. Not much more you could ask for what CPC is selling it for.

[Dwiea]

Did it come with any test leads?

[Mr. Scram]

Did it come with any test leads?

I wouldn't base your decision on whether test leads are included.

[Electro Fan]

Did it come with any test leads?

I wouldn't base your decision on whether test leads are included.

+1 for NOT basing your decision on whether (or what) test leads are included. 

While it’s possible that Korad now includes better test leads than what came with my unit years ago, and while they were potentially useable, the included Korad test leads were nothing to write home about. However, the Korad KA3005P power supply is such a good value that even if no leads are included it should not impact a purchase decision.

Fwiw and to put it in perspective, before an electronics enthusiast becomes a full fledged TEA card carrying enthusiast he or she might might acquire as many test leads as oscilloscopes. If you search on this metric you find that 19 oscilloscopes is sometimes considered par.

[Dwiea]

I wouldn't base your decision on whether test leads are included.

I know but good to know if some do come with it. I was looking at a 'kit' from some company on CPC earlier but the Croc and spring J clip things were only going to go up to 3amps so I would nerd higher.

[Dwiea]

+1 for NOT basing your decision on whether (or what) test leads are included. 

While it’s possible that Korad now includes better test leads than what came with my unit years ago, and while they were potentially useable, the included Korad test leads were nothing to write home about. However, the Korad KA3005P power supply is such a good value that even if no leads are included it should not impact a purchase decision.

Fwiw and to put it in perspective, before an electronics enthusiast becomes a full fledged TEA card carrying enthusiast he or she might might acquire as many test leads as oscilloscopes. If you search on this metric you find that 19 oscilloscopes is sometimes considered par.

Of course I won't base my decision on that. I've more or less decided to go with the tenma double from CPC.

I just need to find what leads I need to buy with it. Probably crocodile and those funky spring J clip things. Although the ones with changeable ends are quite cool.

[Electro Fan]

Something like these might get you started:
https://www.amazon.com/gp/product/B0002JJU1Y/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

Tons of leads to choose from.  As you go you will develop new needs and preferences.

https://www.amazon.com/AST-Labs-Cable-Banana-inches/dp/B00WZPTKQI/ref=sr_1_24_sspa?dchild=1&keywords=banana+plug+micro+grabber&qid=1588364851&s=hi&sr=1-24-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUExSERZUzJMN09SRVlEJmVuY3J5cHRlZElkPUEwODk4MDc5TUxZTFNVQ0paWFQmZW5jcnlwdGVkQWRJZD1BMDE5Njc3NTJXSUdZNzFSNFQ4U08md2lkZ2V0TmFtZT1zcF9idGYmYWN0aW9uPWNsaWNrUmVkaXJlY3QmZG9Ob3RMb2dDbGljaz10cnVl

https://www.amazon.com/Proster-pl%C3%A1tano-Alligator-Seguridad-mult%C3%ADmetro/dp/B01NCLIFVG/ref=sr_1_23_sspa?dchild=1&keywords=banana+plug+micro+grabber&qid=1588364851&s=hi&sr=1-23-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUExSERZUzJMN09SRVlEJmVuY3J5cHRlZElkPUEwODk4MDc5TUxZTFNVQ0paWFQmZW5jcnlwdGVkQWRJZD1BMDQxMzQ5NTIwNzVSNVRJUVpBWVYmd2lkZ2V0TmFtZT1zcF9idGYmYWN0aW9uPWNsaWNrUmVkaXJlY3QmZG9Ob3RMb2dDbGljaz10cnVl
- these look close but you probably don't want right angle banana plugs (they might get in the way of an adjacent terminal or the controls); I'd look for straight-in banana plugs

https://www.amazon.com/Extension-Connector-Silicone-Multimeter-Adapter/dp/B07NWZ71GH/ref=psdc_14244471_t1_B01MZ09L3S

https://www.amazon.com/AST-Labs-Extension-SILICONE-Female/dp/B01MZ09L3S/ref=sr_1_11?dchild=1&keywords=straight%2Bbanana%2Bplug%2Balligator&qid=1588364999&s=hi&sr=1-11&th=1

https://www.amazon.com/BP880-BNC-niquelado-apilamiento-122-Grado-Temperatura/dp/B000VRECB0/ref=sr_1_fkmr1_1?dchild=1&keywords=bnc+to+bana+plugs&qid=1588365189&s=hi&sr=1-1-fkmr1
- this plus variously terminated BNC cables might come in handy later

Cal Test makes a lot of varieties:
https://www.caltestelectronics.com/kits

Pomona too.  You will find some minigrabber designs are more reliable than others:
https://www.pomonaelectronics.com/products/test-clips/grabber-test-clips
https://www.pomonaelectronics.com/products/test-clips/smd-mini-grabber-test-clip-patch-cords-or-clip-leads

Banana plugs come in unsheathed, fixed (non-retractable) sheath, and retractable sheath.  For the Tenma power supply terminals it looks like they might do well/best with fixed sheath, but someone with that specific version of the Tenma power supply could tell you better.  My Korad has jacks for standard unsheathed banana plugs.

Further, sheathed (also referred to as shrouded) leads and also (and non-sheathed) banana plugs can be stackable, or non-stackable.
https://www.muellerelectric.com/products/ai-000406-48-0

https://www.digikey.com/catalog/en/partgroup/4911a-retractable-sheath-banana-plug-patch-cord/16856?utm_adgroup=Test%20%26%20Measurement&utm_source=google&utm_medium=cpc&utm_campaign=Dynamic%20Search&utm_term=&utm_content=Test%20%26%20Measurement&gclid=EAIaIQobChMImqT4k8ST6QIV7v_jBx2qyQ0aEAAYASAAEgJ4_fD_BwE

I think what you are probably looking for would be silicone leads (or PVC is probably ok) with your preference of alligators or grabbers on the DUT end and straight-in, fixed sheath banana plugs (probably don't need to be stackable).  If you are really going to run 5A constant (I don't know how long the PS or you will like that, the fan will be fairly loud) you might want 14 AWG test leads but those might be harder to find with your preferred connectors.  You might want up building your own test leads with the wire and connectors of your choice.

Might be somewhat along the lines of what you are looking for:
https://www.ebay.com/itm/Safety-Shrouded-Banana-Plug-to-Crocodile-Alligator-Clip-Multimeter-Test-Leads-/163753458249

It comes down to learning the possibilities and then determining your preferences.  To get started you can probably use whatever comes with the power supply or try something like the first link at the top.  Happy test lead hunting.