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MangoPenguin, in I need a new bench power supply
@MangoPenguin@lemmy.blahaj.zone avatar

The other option is a used one off ebay, could probably find an older one from one of the good brands for $100-200.

Yondoza, in I need a new bench power supply

None of us can tell you if it’s worth it for you. That’s super subjective based on your cash on hand and what you’re trying to do. How often do you use three separate DC voltages? Should you just do a dual output and keep a cheap single output on the side for the rare occasion you need 3? We can’t answer that.

Those two you selected look like great quality products from respected brands.

Could you find similar functionality cheaper? Almost certainly, for probably lower quality.

Can you find better quality between those two pricepoints with the same functionality? I don’t know, but I think this is the question to ask.

LEDZeppelin, in I need a new bench power supply

Holy fk they’re expensive

glibg10b,

Lab equipment does tend to be expensive

RagnarokOnline, in I need a new bench power supply

I don’t know anything about electronics, but I’m rooting for you to get your answer from someone out there

Goodman, in Modulating and amplifying signals with (electro)magnets

Wow really cool! Didn’t know that was possible

nothacking, in Please do not pet wire-bonded chips

Why is the chip naked? Get a can or some epoxy.

Scafir,

We are working towards having a product properly packaged. This is a prototype that is not mature enough yet to justify the cost/time to package it. Moreover, this custom chip is used to measure ultra low currents (down to femto amps), so any packaging could potentially interfere with the measurement capabilities (-> no epoxy). It is however protected by a large shielding box, but it’s no use during assembly/modifications :/

glibg10b, in Inductively powered LED thing

Are you using the BJT to create an AC signal? If so, how?

nothacking, (edited )

Just a blocking occilstor based on a 2N3904. I later found that adding a capacitor across the coil connected to the transistors emiter and operating it at resonance, greatly improves the power consumption. (30mA to 1mA)

createkarma, in Is this a sign of a capacitor leak?

Are there any capacitors on the other side because I don’t see any here. Quite likely just corrosion on exposed copper, should be harmless

Rolive, in Is this a sign of a capacitor leak?

Not an expert here but the stain is limited to where the capacitor is located. I think it’s safe to assume the capacitor was faulty and to replace it.

Kratzkopf, in Please do not pet wire-bonded chips

What does “petting” mean in this context?

Scafir,

The little gray wires should be all nice and straight. Even though your chip may be a good boi, touching it will wreak havoc on the wire bonding. Repairing the damage shown on the picture takes a skilled worker and very expensive equipment. Even then the repair is not fully guaranteed to be successful.

Krististrasza,

Any touch is a bad touch.

xoggy, in Please do not pet wire-bonded chips

Advice considered.

Nuuskis, in Finally over

With this pace your future will be brighter than sun!

TimeSquirrel, in Downsizing my homelab! Free bit and bobs, just pay for shipping!
@TimeSquirrel@kbin.social avatar
aperson, in Downsizing my homelab! Free bit and bobs, just pay for shipping!

I would remove that smart electronics picture. It has most of your name and address in it.

danielhep,

Thanks for the note. I meant to crop it and forgot to! Either way, since I’m about to move (hence the downsizing), so no big deal.

collegefurtrader, in Downsizing my homelab! Free bit and bobs, just pay for shipping!

I can sort this all into my collection quite efficiently, I’ll take the lot. ( unless someone has a specific need)

Tell me the size and weight of the box and I’ll send you a prepaid shipping label.

danielhep,

Cool! Let’s do it; I’m anxious to get it out. If someone comes along very soon with a specific need, we can split something out, but I’ll send you a DM.

collegefurtrader,

Thanks

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