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marcoreps posts

Mobile power station powering my whole lab for a day

marcoreps post Mobile power station powering my whole lab for a day from patreon

Pretty excited to put a small damper on all the energy-crisis-fearmongering with only 4 solar panels. There may still be big problems ahead for industry, but at least the Reps Labs are safe from blackouts:


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Uninterruptable power supply module for my 10V standards

marcoreps post Uninterruptable  power supply module for my 10V standards from patreon

That concludes the ADRmu preparation

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Building a Thermal Test Chamber for XXL Arroyo TECSource

marcoreps post Building a Thermal Test Chamber for XXL Arroyo TECSource from patreon

New devices that just work are boring, but Arroyo didn't want to send me a broken XXL TECSource

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Unbox Therapy: Siemens Solar Inverter and Thermal Voltage Converters

marcoreps post Unbox Therapy: Siemens Solar Inverter and Thermal Voltage Converters from patreon


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So uh I bought 11.75kWp worth of solar panels ...

marcoreps post So uh I bought 11.75kWp worth of solar panels ... from patreon

so that the PPM farm can remain in operation independently of electricity costs. Maybe there's even enough power for a little AC unit 😎

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Soldering bench upgrade Ep2

marcoreps post Soldering bench upgrade Ep2 from patreon

Double-kill

Small nuanced update on 14. April

Second small update on 28. Sept

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Soldering bench upgrade Ep1

marcoreps post Soldering bench upgrade Ep1 from patreon

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eXtReMe iSoLaTiOn

marcoreps post eXtReMe iSoLaTiOn from patreon

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Reps Luxury E-Waste Disposal Services GmbH

marcoreps post Reps Luxury E-Waste Disposal Services GmbH from patreon

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PPM citadel in the Harz national park?

marcoreps post PPM citadel in the Harz national park? from patreon

All the photos: https://imgur.com/a/sEUIJK2

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Chinese vacuum cleaner review like the good old days

marcoreps post Chinese vacuum cleaner review like the good old days from patreon

Happy holidays πŸŽ…πŸŽ„

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What did Keysight do to the 3458A?!

marcoreps post What did Keysight do to the 3458A?! from patreon

Updated on January 3.: A few more little things after external proofreading

Updated on April 16.: Final edit + we finally have a release date! May 1st

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New lab candidate & unboxing bonanza

marcoreps post New lab candidate & unboxing bonanza from patreon

Freiberg house album: https://imgur.com/a/GS6iFdK

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First 'light' with the huge microfocus source!

marcoreps post First 'light' with the huge microfocus source! from patreon

I also haven't forgotten about the higher res GbE image sensor I've shown briefly ... but that is somehow stuck in a resolution-limiting 'region of interest' mode and I haven't found out yet how to get to full resolution.

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Importing PPMs from the national metrology institute

marcoreps post Importing PPMs from the national metrology institute from patreon

Finally I got the chance to measure my 3 electrical standards with freshly calibrated meters. TWICE 🀯

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Goofing around with 2 thermal cameras

marcoreps post Goofing around with 2 thermal cameras from patreon

This is probably not the final version of this vid, because there's some blatant software piracy going on at 8:30 which might get me into trouble 😬

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HP 3458A "repair" and inner workings

marcoreps post HP 3458A "repair" and inner workings from patreon

Probably my biggest video project yet ... probably still lots of mistakes to find and correct 😬


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Thermal Mailbag: Heat flux sensor, Arroyo, Prema

marcoreps post Thermal Mailbag: Heat flux sensor, Arroyo, Prema from patreon

Last house candidate: https://imgur.com/a/yJfh7IY

Arroyo 5400 teardown: https://imgur.com/a/27HQMif

Prema 3040 teardown: 2021-08-07 22:50:55 +0000 UTC View Post

Quick trip to Switzerland

marcoreps post Quick trip to Switzerland from patreon

... and back home with a full trunk πŸ˜‡

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Draft: 10V Standards: Fluke 732A vs LTZmu

marcoreps post Draft: 10V Standards: Fluke 732A vs LTZmu from patreon

The Fluke calibrator saga continues. To import accuracy we need 3 transfer standards with good short term stability: 10V, 10 kOhm and 1 Ohm. In this video we are looking at 2 different 10V approaches.

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Should I move into this ruin?

marcoreps post Should I move into this ruin? from patreon

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Detecting Cosmic Rays with a Raspberry Pi

marcoreps post Detecting Cosmic Rays with a Raspberry Pi from patreon

It looks like I can't give stuff away any more. Nice. Completely reasonable and sane policy there πŸ™„

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Road trip and first look at high frequency light source

marcoreps post Road trip and first look at high frequency light source from patreon

To be continued ...

...

soonβ„’

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Golden Boi Teardown and more

marcoreps post Golden Boi Teardown and more from patreon

Love that VPG channel with their 80s MS-DOS software https://www.youtube.com/watch?v=0dGZfz81Rfg

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"0.1 ppm" open source 8.5 digit voltmeter from CERN

marcoreps post "0.1 ppm" open source 8.5 digit voltmeter from CERN from patreon

Friends, thank you for your patience, sorry that this took so long!

Got enough raw footage for 2 more videos 😡

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Some merry crisis packages

marcoreps post Some merry crisis packages from patreon

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Little OSMU Update

marcoreps post Little OSMU Update from patreon

I made an LT1166-based power output stage. Once finished it can be operated with a few ADCs and DACs to create 4-quadrant devices.

First OSMU idea in Siglent PSU video: https://youtu.be/H-BiphMqp5g?t=260

Current clamp simulation: 2020-11-19 21:45:11 +0000 UTC View Post

Quick overview of the Advantest R6581T Multimeter

marcoreps post Quick overview of the Advantest R6581T Multimeter from patreon

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Testing the Calibrator with Keithley 2002

marcoreps post Testing the Calibrator with Keithley 2002 from patreon

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Fluke 5700A repair

marcoreps post Fluke 5700A repair from patreon

Finally ... uh almost done πŸ™ˆ

PWM DAC needs some more love and a conclusion at the end is missing.

Anything else you'd wish more details about? Editing the final version now

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