Bench Power Supply Q

[badferday]

Have my eye on one capable of 0-30v, which I know is fine. But max 3 amp... that sounds a bit on the low side.

It's a Protek 303. Recently-ish calibrated in 2022.

Thoughts?

 

[Kai Robinson]

Uhhh, 3 amps at 30v is NINETY WATTS.

What benchtop projects need THAT much power?

 

[Certificate of Excellence]

Evidently I am perpetually 12 years old.



Carry on

 

[ClassicHasClass]

Uhhh, 3 amps at 30v is NINETY WATTS.

What benchtop projects need THAT much power?

A small hair dryer?

I forget how much my bench supply can generate. I'll glance at the manual later.

 

[badferday]

Don't matter now. The seller ended the listing.

This one looks so nice. Reminds me of my Vestax MW-3000. But yet another seller padding the shipping cost.

Sorensen IPS 2302A Laboratory DC Power Supply 9869606 | eBay

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[badferday]

And it has a digital twin. Question is... which manufacturer is badge engineering?

Tenma 72-6615 0000479 30V/5V Power Supply | eBay

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[Elemenoh]

If you do need something high wattage and high quality you could go with a classic HP/Agilent/Keysight E364xA. They go up to 400W or so. They’re so common you may be able to find a very cheap broken one and fix It up.

 

[badferday]

If you do need something high wattage and high quality you could go with a classic HP/Agilent/Keysight E364xA. They go up to 400W or so. They’re so common you may be able to find a very cheap broken one and fix It up.

Oh nice! Thanks for the tip.

I don't know that I need high wattage. That particular supply was an example of something I thought would cover all my bases. I wanna be able to test up to 24v, because that's about the highest DC I've seen inside consumer electronics (except CRTs and amps).