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AD584 vs. LM399 Voltage Reference Test Setup

One of the upcoming future projects is going to be the build of a high capacity 48V lithium battery bank. In order to be prepared and able to measure cell voltages with single digit mV precision, it became clear that the lab's multimeters may not offer high enough resolution or accuracy. So we are trapped in the chicken - egg situation where we don't have good enough equipment to verify our measuring devices.

Precision Voltage References to the rescue then.

But how stable and accurate are they? In order to help us and share what is learned with all of you, a cheap AD584 and a not so cheap LM399 “precision voltage reference” were purchased.

As you can see, so far (over the last 5 hours) the LM399 really wasnt worth the money…

2021/03/28 22:18 · chrono · 0 Comments

New Blackmagic Micro Cinema Camera DOA

This should have been the new cam for the lab bench to make it easier and more streamlined to record whats happening. Sadly, it arrived DOA, so the only new footage it could offer was how the dead sensor looks like.

Kudos to, who not only made the RMA process easy, but also covered the shipping costs:

As soon as the replacement arrives, there will be an unboxing and more test footage of it, so dont forget to follow :)

2021/01/09 10:48 · chrono · 0 Comments

Building a new Render Beast

Doing videos for LBRY is taking a toll on the current hardware. In order to streamline publishing of more actual videos, Blender rendering, other CPU/GPU intensive visualizations as well as training advanced Neural-Networks, a new and far more beefy Machine is needed.

While at it, we might just build it like a tank as well, completely from the ground up, with custom frames/cases, optimized for highest efficiency, environmental compatibility and lifetime endurance. This picture shows only the cooling part, with the pump/reservoir in the middle, left and right to it two radiators will take care of business.

2020/09/20 21:23 · chrono · 0 Comments

LimeSDR USB-A Unboxing

Finally the most competent SDR in our LAB arrived: The LimeSDR. Although the rtl-sdr and the sdrplay are great for playing/receiving and the HackRF/rad10 have been great advances, the LimeSDR is a completely different animal. Here's the unboxing of it.

Basic rigging and setup will follow soon.

2020/06/22 05:46 · chrono · 0 Comments

Mission: Critter Rescue

Sometimes it's not all about technology only, but our responsibility to deal with its fallout.

2020/06/06 17:05 · chrono · 0 Comments

LBRY - Decentralized content freedom

With the ever more growing demand for knowledge and content transfer by means of videos, this wiki is not the best place to host and share them. After following the progress of LBRY for the past two years and with the recent move of the LBRY team to have a fully functional web platform as well (next to the desktop and android app), it was time to make a move and create a channel for Apollo-NG there. The next Starlink Orbit visualizations will be hosted on LBRY as well.

When you are curious and want to try it out, you can simply create a free account here

This will also help the Apollo-NG channel to be able to stake more LBC into videos. If you are quick enough, you can also get some additional starting LBC by opening your “Rewards” panel and enter the following custom code: neumannwasrobbed

More and more creators, many of us still watch on YouTube - like Dave from eevblog, are moving over to LBRY as well, since YouTube has become an authoritarian, ideology driven censorship regime which should not be supported anymore.

Of course LBRY is still young and in heavy development, so it's sometimes slow and there might be dragons. That's ok. Slow is still better than full of ads (there are no ads in or the apps when you are logged in - you can tip creators for the content that you like) or being censored and not available at all.

Watch the full development progress of LBRY over the last 4 years:

For those who already are lbryrians: please follow, share and repost :)

2020/05/03 11:31 · chrono · 0 Comments