EEVblog #1086 – 5 Year Solar Power Results – Payback?

Dave looks at the 5 year data on his 3kW home solar power system. What was the payback period? And will adding a Tesla Powerwall 2 lithium ion battery energy storage solution be worthwhile?

PVoutput data: https://pvoutput.org/list.jsp?userid=22501

Installation: https://www.youtube.com/watch?v=VGENVguQQmo
Previous Update: https://www.youtube.com/watch?v=dEqlOj6_m0Q

Forum: <a href="http://www.eevblog.com/forum/blog/eevblog-1086-5-year-solar-power-payback/" Continue reading EEVblog #1086 – 5 Year Solar Power Results – Payback?

EEVblog #1085 – Bypass Capacitors Visualised!

An in-depth practical visualisation of how bypass capacitors work at both high and low frequencies.
Bulk decoupling capacitors vs bypass capacitors.
Capacitor placement and types are tested and the results examined.
How package inductance can have a large effect.
Loop area and what is means, it’s impact on EMC emissions, and how Continue reading EEVblog #1085 – Bypass Capacitors Visualised!

EEVblog #1084 – Pocket Multimeter Shootout Part 2

Some quick extra tests on the 6 of the 14 pocket multimeters from Part 1 : https://www.youtube.com/watch?v=LCFEonQDkQU
Which meter *won’t* survive testing?
Forum: http://www.eevblog.com/forum/blog/eevblog-1083-pocket-mutimeter-shootout/

EEVblog Main Web Site: http://www.eevblog.com
The 2nd EEVblog Channel: http://www.youtube.com/EEVblog2

Support the EEVblog through Patreon!
http://www.patreon.com/eevblog

Stuff I Continue reading EEVblog #1084 – Pocket Multimeter Shootout Part 2

EEVblog #1083 – Pocket Multimeter Shootout

14 pocket multimeters from $8 to $65 are torn down and compared for feature set and build quality.
Ranging in price from $8 to $65, which one is the best in each price category?
Timestamps:
6:07 XB866 Wun Hung Lo
9:42 ANENG AN8203
15:47 $10 Shootout Summary
16:14 Uni-T UT10A
19:12 Uni-T UT120B/120C
22:41 UNI-T Shootout Summary
23:05 Jaycar Continue reading EEVblog #1083 – Pocket Multimeter Shootout

EEVblog #1082 – What is the UL logo on products?

What does the UL type approval logo on consumer products mean?
What about TUV, ETL, GS, CCC and other marks?
Dave breaks down safety standards and compliance marks.

Previous video on the CE & FCC mark: https://www.youtube.com/watch?v=f0uvS80YIGU

Forum: http://www.eevblog.com/forum/blog/eevblog-1082-what-is-the-ul-logo-on-products/

Underwriters Laboratory UL Standard catalog: https://standardscatalog.ul.com/
ETL mark: Continue reading EEVblog #1082 – What is the UL logo on products?

Whirlpool Gas Cooktop Center Burner Base Replacement #W10811599

This video provides step-by-step instructions for replacing the center burner base on Whirlpool gas cooktops (model #WCG97US0DS00). The most common reason for replacing the base is if it is clogged and the burner is not lighting.

Buy part #W10811599 now: https://www.repairclinic.com/PartDetail/4283207?TLSID=1873

Additional stove repair, troubleshooting tips, help with finding Continue reading Whirlpool Gas Cooktop Center Burner Base Replacement #W10811599

EEVblog #1081 – Are Bypass Capacitors REALLY needed?

Can a product work without ANY bypass capacitors?
Dave has some fun finding out if “Muntzing” the Gigatron TTL computer works, i.e. removing all the bypass capacitors.
Lots of interesting talk on bypassing, grounding, probing, signal integrity, ground loops, loop area, noise and crosstalk.
TLDR; Don’t remove all your bypass caps, they are Continue reading EEVblog #1081 – Are Bypass Capacitors REALLY needed?

Whirlpool Gas Cooktop Right Rear Burner Base Replacement #WP8286813

This video provides step-by-step repair instructions for replacing the right rear burner base on a Whirlpool gas cooktop (model #WCG97US0DS00). The most common reason for replacing the burner base is if it is clogged and the flame is weak.

Buy part #WP8286813 now: https://www.repairclinic.com/PartDetail/1421910?TLSID=1873

Additional stove repair, troubleshooting tips, Continue reading Whirlpool Gas Cooktop Right Rear Burner Base Replacement #WP8286813

Repair Help Information and Services