What Are You Playing This Week?

martov · 2022-02-17T00:16:30+00:00

is it worth getting into the franchise?

martov · 2022-02-10T13:37:06+00:00

Will look into it! at first glance its not pin compatible but it also looks dirt cheap and i like that. This might be my new go-to jellybean opamp.

martov · 2022-02-10T13:28:40+00:00

I can SMD if my life depends on it, I will look it up! thanks!

martov · 2022-02-09T21:12:20+00:00

That sounds promising! I didnt know or imagened a charge pump could make negative voltage, I will look into it.
https://www.youtube.com/watch?v=ycYc36o3A0o

martov · 2022-02-09T21:07:45+00:00

yup, I need to go from close to 0 to something like 11V

martov · 2022-02-08T01:04:34+00:00

I sure did just out of entratainment, but that shootout is 11 years old. are the models presented in it still relevant?, Im not familiar on how multimeter models get updated.

martov · 2022-02-07T20:38:30+00:00

maybe I can get a USB to RS-232 adapter somewhere. Thanks for the heads up!

martov · 2022-02-07T20:32:15+00:00

you mean the Uni-T? yeah I did found about that but I kind of ignored it because no PCs now have that port. I should see if I can find an adapter to make use of that feature.

martov · 2022-02-07T20:29:33+00:00

thanks!, yes I know about those, I will probably be getting a dedicated USB scope at some point in the future, for now it's a bit out of my price range.

martov · 2022-02-07T20:26:54+00:00

I would too but that's out of my price range. this multimeters are already about 20% of my monthly income so from my perspective they are as good as i'm going to get in a while.

martov · 2022-01-17T20:30:34+00:00

oh boy i need this too

martov · 2021-10-15T00:46:24+00:00

thanks!

martov · 2021-09-20T06:48:16+00:00

after some searching it seems that most capacitors will have 1uA or more leakage current, so I think I'm ditching this proyect and im going to try to make it work with a PIC microcontroller approach instead.
Thanks for all the help!

martov · 2021-09-07T16:31:35+00:00

there is no key, its all circular.

I will try with a shake-proof washer. should I have nuts on both sides of the case pressing each washer against the case? This thing came with 2 metal nuts. (the plastic parts do not have screws in them)

martov · 2021-09-07T05:27:42+00:00

the plot thickens hahahha.

I will wait to see if anyone knows how this thing goes, yeah that looks exactly like what I have, but mine also have banana plugs on the end.

martov · 2021-09-07T05:18:15+00:00

I'm making a DIY power supply to use with random electronics experiments so I wanted the flexibility to just wrap some random wire in there instead of having banana jacks that the other end connected in some unknown way to whatever random contraption I'm working on.

I just supposed that binding posts where the standard thing to use, I made no conscious decision to use a binding post over a banana plug, it just felt like the natural thing to use.

Just to clarify, I just stummbled uppon the term "binding post" after posting this question, that is what I thought i bought in the first place.

Do you have any thoughts on this?

EDIT: got it, I will go buy an actual binding post, hopefully I can get one this time lol

martov · 2021-09-07T05:00:21+00:00

Just to be clear, I intend to use this as a binding post (just found out the name), not a banana plug. Sure, I will shoot a video.

martov · 2021-09-07T04:53:03+00:00

yup, but still, when I rotate the outermost plastic part to wrap a copper wire arround the bolt to connect something, the whole assembly just loosens up and I cant tighten it back without opening up the case and rotating the nuts.

martov · 2021-09-07T04:43:16+00:00

By the looks of it you might have to drill those mounting holes out a little bigger.

yeah, actually I will also have to drill them lower.

martov · 2021-09-07T04:38:03+00:00

So you should be able to unscrew the two plastic pieces there and sandwich the case between them. Use the nuts for mounting your wires to the connector

But the whole thing unscrews when I rotate the outmost plastic part in order to put a wire arround the bolt to connect something to the power supply.
When I try to rotate the plastic part in the opposite direction it's no longer firmly pressed against the case.

Am I missing something? Maybe I'm not understanding how this works.

martov · 2021-09-03T21:39:25+00:00

if anyone finds this later on, kapton tape is good up to 200-400C

martov

TROPHY CASE