Hobby Electronics Basics

Re: CES 2018: An underwear to protect your private parts from radiation

Protect your private parts from radiation; then he starts in with: >How often have you felt the need to stay safe from c...

1 comments posted 8yrs

posted by default

1 comments posted 8yrs posted by default

$0.79 Clip On LED Light for Phone Batteries

I have a collection of batteries I find cycling. Yesterday it was a Galaxy Note 4. You don't have to cycle thousands of...

0 comments posted 8yrs

posted by bretcahill

0 comments posted 8yrs posted by bretcahill

Solder paste

I having been using Oatey solder paste when soldering large diameter wires. I know it's designed for copper pipes. Is th...

18 comments posted 8yrs

posted by andrewkennedy775

18 comments posted 8yrs posted by andrewkennedy775

Bifilar inductor?

Hi all, silly question. Dave's EEVblog was on... there was this bifilar wound coil (starts at ~39 minutes in) https://w...

27 comments posted 8yrs

posted by gherold

27 comments posted 8yrs posted by gherold

LEDs: "wattage" redefined

I got these LED floodlights for free - "24 watt, 12 - 30v". I put one on a bench supply & checked the current: 500ma @ 1...

8 comments posted 8yrs

posted by BobEngelhardt

8 comments posted 8yrs posted by BobEngelhardt

What is a "wet contactor"

An eBay listing for a electronic tachometer specifies that it's input can be a "wet contactor". Is there a standard mean...

17 comments posted 8yrs

posted by BobEngelhardt

17 comments posted 8yrs posted by BobEngelhardt

Triac efficiency

Hi everyone, When regulating the power to a motor or light, does the triac do so efficiently or does it dump the unwante...

10 comments posted 8yrs

posted by mrdarrett

10 comments posted 8yrs posted by mrdarrett

Zoho Setup | GST filing | Accounting services Hyderabad

Free Zoho Setup | Zoho Activation | Alchemistconsultants. The Goods and Services Tax has changed the Indian tax collect...

0 comments posted 8yrs

posted by gstwork77

0 comments posted 8yrs posted by gstwork77

One Thing I Never Understood - Tunnel Diodes

Its theory of operation escapes me. I know there is a negative resistance part of its IE curve, but doesn't that just m...

9 comments posted 8yrs

posted by jurb6006

9 comments posted 8yrs posted by jurb6006

EVs Will Soon Be Vastly Cheaper To Own Than Carbon Fuel Vehicles

Daimler and others already pointed out that the battery upon which Tesla's e-Semi is based does not exist. Tesla isn't...

35 comments posted 8yrs

posted by bretcahill

35 comments posted 8yrs posted by bretcahill

help identifying damaged IC

I'm trying to identify a damaged IC in my son's radio controlled car. It's SO-8 package, I think it's an H Bridge. The...

2 comments posted 8yrs

posted by me

2 comments posted 8yrs posted by me

keeping tools/devices dry (rice)

Will putting a pouch of rice in a toolbox with devices stop rust? (I remember this was recommended, but I don't remember...

24 comments posted 8yrs

posted by bruce2bowser

24 comments posted 8yrs posted by bruce2bowser

Tee Hee

Tee Hee... ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and...

0 comments posted 8yrs

posted by To-Email-Use-The-Envelope-Icon

0 comments posted 8yrs posted by To-Email-Use-The-Envelope-Icon

Something others may find useful (mains leds and dimmers)

I got some el-cheapo "Circuit On Board" style retro looking clear 4 watt led lamps to replace the 4 - 40 watt "designer...

12 comments posted 8yrs

posted by default

12 comments posted 8yrs posted by default

Generator harmonics question(s)

Years ago I adjusted a neighbor's generator so that it put out 60 cycles at 120 volts. I used a TEK 465B 'scope to look...

3 comments posted 8yrs

posted by etpm

3 comments posted 8yrs posted by etpm