# A litany of dumbassery

**URL:** <https://lookmumnocomputer.discourse.group/t/a-litany-of-dumbassery/526>\
**Category:** Uncategorized\
**Created:** [April 4, 2020, 9:42pm UTC](https://lookmumnocomputer.discourse.group/t/a-litany-of-dumbassery/526 "2020-04-04T21:42:52Z")\
**Posts on this page:** 1\
**Showing post:** 46

<div class="post-metadata">

**Author:** ![fredrik](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/fredrik/32/682_2.png) [@fredrik](https://lookmumnocomputer.discourse.group/u/fredrik)\
**Post date:** [May 28, 2020, 11:45am UTC](https://lookmumnocomputer.discourse.group/t/a-litany-of-dumbassery/526/46 "2020-05-28T11:45:55Z")

</div>

Get one of these for your workbench (but as @philippejadin says, make sure to put it in a nice enclosure):

> [@Decent, inexpensive bench power supply?](https://lookmumnocomputer.discourse.group/t/decent-inexpensive-bench-power-supply/236/5):
>
> The meanwell rt-50b is also a simple option for a bench supply. For 15 euros, hard to beat. You just need to put it in a small enclosure to be safe on the mains side. If you don’t know how to wire mains, don’t do it, the voltages in there could kill you. That’s why you need an enclosure slight_smile In europe, buy here : [https://www.tme.eu/fr/details/rt-50b/alimentations-encastrables/mean-well/](https://www.tme.eu/fr/details/rt-50b/alimentations-encastrables/mean-well/)

or cheaper/safer, one of these and power it from a USB battery pack:

> **[MDD02L-12 MEAN WELL - Convertisseur: DC/DC | 2W; Ud'entrée: 4,5÷5,5V; Ubase:...](https://www.tme.eu/fr/details/mdd02l-12/convertisseurs-dc-dc/mean-well/)**
>
> MEAN WELL MDD02L-12 | Convertisseur: DC/DC; 2W; Ud'entrée: 4,5÷5,5V; Ubase: 12VDC; SIP7 - Produit disponible chez Transfer Multisort Elektronik. Vérifiez notre large offre.

(the second is only 2 W but that’s enough for many modules. There are more powerful options as well, e.g. Recom does 6 W converters in the same absurdly tiny form factor, but TME didn’t have them in stock. There’s also larger form factors with a bit more power.)

EDIT: Turns out the 2W I linked to is a “Medical Grade Unregulated Converter” which is maybe not the right thing 😀 Will take another look at what they have when I find the time.

---

_[View the full topic](https://lookmumnocomputer.discourse.group/t/a-litany-of-dumbassery/526)._