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Cheap and Good 5v 1A supply
Cheap and Good 5v 1A supply
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Old 26th September 2021, 01:32 AM   #11
jjasniew is offline jjasniew  United States
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Cheap and Good 5v 1A supply
>Ive seen these under four brands already.

Yep, it seems identical to the SOLA liste here, used. SOLA SLS-05-030-1 POWER SUPPLY **FREE SHIPPING** 780333861188 | eBay

I bought the SOLA one, even though it was used. Looked like it was built better...
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Last edited by jjasniew; 26th September 2021 at 01:45 AM.
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Old 26th September 2021, 02:58 AM   #12
NareshBrd is offline NareshBrd  India
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How about smart phone chargers, as in those left over from phones that were replaced?
A noise filter on the receiving end should do.
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Old 26th September 2021, 03:41 AM   #13
phase is offline phase  United States
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Well that’s where I started with this project, figured I could do better…

But yes, it worked.
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Old 26th September 2021, 06:12 AM   #14
jean-paul is offline jean-paul  Netherlands
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Quote:
Originally Posted by v4lve lover View Post
Just picked up 3 of those from a local guy for €10 Ive seen these under four brands already. So i dont think that module is actually made by Huges, or there was some defacto standard for these kind of modules.
It is industrial (read: military) stuff made by several OEMs, that is why they are almost identical. Old but good, no LDO and one needs a casing/IEC inlet.

@phase: 5V 1A is often not enough for streamers and then the linear 3A open frame PSU's may come in handy. The ready built Astron PSU's are also good (but difficult to find in the EU) for 12V applications. Please note that these manufacturers all jumped to SMPS long ago so more recent devices are in fact SMPS.



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Last edited by jean-paul; 26th September 2021 at 06:34 AM.
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Old 26th September 2021, 04:20 PM   #15
phase is offline phase  United States
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My point in illustrating these more unique power supplies was that they appeared to be more of the exception for small (1A) supplies, with more of the benefits found in the larger commercial supplies.

If you’ve ever taken apart the typical (traditional) wall wart, you will usually only find a diode and a single cap. These have what appears to be a proper filter circuit using inductors, multiple caps, etc.

If you want to talk about larger supplies then maybe this thread isn’t for you.

I had purchased another one of these last week to play with, and will attempt to map out a schematic after I receive it.

Last edited by phase; 26th September 2021 at 04:46 PM.
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Old 26th September 2021, 05:05 PM   #16
jjasniew is offline jjasniew  United States
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Cheap and Good 5v 1A supply
I wanted to talk about "Cheap and Good". $20 post included fits the scheme. Not as good as $10, but I wanted 3. Amperes, that is.
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Old 26th September 2021, 05:08 PM   #17
phase is offline phase  United States
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Those 3a ones are better than good!

I should have mentioned compact as well, is a handy feature sometimes too.

Should have taken a picture of the inside of this thing while I had it apart too, was impressive for what it is and what I had been expecting to find anyways.
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Old 26th September 2021, 05:38 PM   #18
v4lve lover is offline v4lve lover  Netherlands
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Cheap and Good 5v 1A supply
Mine actually have an output overvoltage crowbar present. Which is a nice feature if you want it to be bombproof, The 723 is a giant of a regulator kit too, said to be immune to RF which is nice.



Just bought them because i had to buy something, I was there for the tubes. Got me a master carton of 15CW5 for my birthday yesterday!
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Old 26th September 2021, 07:37 PM   #19
jean-paul is offline jean-paul  Netherlands
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I think they all have the crowbar circuit. LM723 is very low noise even compared to todays regs but noise is only specified from 100 Hz to 10 kHz. Todays regs are much more wideband .... Please let's write stuff as intended. 5V 3A it is. Today I visited a flea market where I found a few linear PSU's of which one is a 13.5V 2.5A. They are not all scrapped it seems

v4lve lover, if you can use the 12/15V 6A version... I am looking for the 5V 3A version...
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Last edited by jean-paul; 26th September 2021 at 07:57 PM.
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Old 27th September 2021, 06:57 AM   #20
v4lve lover is offline v4lve lover  Netherlands
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Cheap and Good 5v 1A supply
Il send you a PM, i bought them for the nice parts, but if someone is looking for them..


Cheers.
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