A follow up to the previous video on repairing the heater. A viewer asked how the capacitor diode rectifier gave a 24V output. The key is in the zener regulator, so this vidoe looks at how mains powered zener voltage regulators work, and their limitations. X class capacitor and self healing. Forum: https://www.eevblog.com/forum/blog/eevblog-1482-mains-capacitor-zener-regulator-circuit/ Youtube: Odysee:

A heater that doesn’t heat up should be an easy and quick repair, right? RIGHT? This Arlec space heater also has a rather dodgy and product recall worthy dangerous construction! 00:00 – Arlec space heater 03:20 – PRODUCT RECALL TIME! 05:12 – Heater element measurement 07:31 – PCB inspection 11:31 – Verifying the fault 12:50 ...

Are solar powered electric cars viable? Let’s look at the Lightyear Zero solar powered electric car and examine the claims. Can you get a useless extended range by adding solar panels to an electric car? Dave just so happens to drive a solar powered electric car, so let’s find out! Forum: https://www.eevblog.com/forum/blog/eevblog-1480-lightyear-zero-solar-powered-electric-car/ 00:00 – Lightyear ...

Is your calculator WRONG? It could be! Looking at the issue of implied multiplication and how it can affect your calculations. Why do some Casio and TI calculators give a different result to others? And why do they differ from your phone calculator, google calculator, or Wolfram Alpha? How Order of Operations matters. TI explains ...

Testing the new Tektronix 2 series waveform update rate vs older Keysight, Siglent, and Rigol scopes, and a glitch signal demonstration on how it matters in the real world. And also how to measure the waveform update rate on your scope. This is not a review, and was going to be a 2nd channel video, ...

A world exclusive teardown of the new generation Tektronix 2 Series MSO bench/portable oscilloscope! An innovative new design form factor you’re either going to love or hate! This is the upgrade to the 15yo MSO/DPO 2000B series to give a low end on the next generation 2/3/4/5/6 series. Youtube: Odysee: High res teardwon photos:

Teardown of the Keithley 515A Megohm Wheatstone bridge, plus a tutorial on how Wheatsone bridges work and their applications. Manual & Schematic: https://download.tek.com/manual/515A(Model515A).pdf 1960’s Daven precision resistor and attenuator catalog: http://www.technicalaudio.com/pdf/Daven/Daven_attenuator_switch_lab_Catalog.pdf 00:00 Keithley 515A Megohm Wheatstone bridge 03:50 – The Magic smoke test 04:00 – Zero check test 04:40 – Standardise calibration step 05:30 – ...

Answering another viewer question. Can we identify or find an alternative for this SMD part? https://twitter.com/PoiSolutionsLLC/status/1529065036433571840 Forum: https://www.eevblog.com/forum/blog/eevblog-1475-smd-part-indentification-substitution-search/ Youtube: Odysee:

Can you measure capacitors in-circuit with an LCR meter? Forum: https://www.eevblog.com/forum/blog/eevblog-1473-how-your-lcr-meter-works/ Youtube: Odysee:

How an LCR meter works. Forum: https://www.eevblog.com/forum/blog/eevblog-1473-how-your-lcr-meter-works/ Youtube: Odysee: Utreon: