Hobby Electronics Basics

OT: Are you now or have you ever been a climate skeptic?

Are you now or have you ever been a climate skeptic?... ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovat...

8 comments posted 11yrs

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

8 comments posted 11yrs posted by To-Email-Use-The-Envelope-Icon

Funny little circuit

I'm probably on my fifth or sixth reread of the AoE FET chapter. At the end of the chapter, there is "Bad Circuit Ideas...

3 comments posted 11yrs

posted by mhdpublic

3 comments posted 11yrs posted by mhdpublic

Power JFET (or why you need to update your AoE)

On my almost fifth reading of the AoE JFET chapter. 2nd Ed, p.138 -> "there aren't any power JFETs" A simple google sear...

0 comments posted 11yrs

posted by mhdpublic

0 comments posted 11yrs posted by mhdpublic

Are MOSFETS best for this?

Greetings All, I have a small Lincoln wirefeed welder. Depending on the wire and the process the welding wire will be e...

4 comments posted 11yrs

posted by etpm

4 comments posted 11yrs posted by etpm

DSC 1832 - zones

Hi. I hope that someone is working with dsc alarm system. I'm using paradox but i have used dsc before few years. I ins...

0 comments posted 11yrs

posted by notMyMail

0 comments posted 11yrs posted by notMyMail

classic semiconductors

What are the "Classic Semiconductors" out there? I stumbled across the MC34063 as a "classic" switching regulator (cons...

22 comments posted 11yrs

posted by mrdarrett

22 comments posted 11yrs posted by mrdarrett

Using a 12V 2A power supply direct and with 3V voltage divider?

I have forgotten everything I learned in the single electrical science class I took in college 25 years ago. Please for...

50 comments posted 11yrs

posted by stkeith11

50 comments posted 11yrs posted by stkeith11

Of battery terminals & grease

There are some members of electronic forums that suggest coating automotive battery posts with grease ("any king--axle,...

6 comments posted 11yrs

posted by fbt

6 comments posted 11yrs posted by fbt

High voltage capacitor question

Hey All, I have an old Miller Gold Star welder that may have failing high voltage caps in the high frequency circuit. I...

9 comments posted 11yrs

posted by etpm

9 comments posted 11yrs posted by etpm

Analyzing a circuit

AoE Chapter 3 - circuit ideas A (high-input-impedance follower) Also here: https://www.dropbox.com/s/hyxk9ghx9c28vsv/Ao...

10 comments posted 11yrs

posted by mhdpublic

10 comments posted 11yrs posted by mhdpublic

OT: HDMI Wireless

Anyone have experience/recommendations for wireless ways to distribute HDMI to multiple TV sets? ...Jim Thompson -- | J...

11 comments posted 11yrs

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

11 comments posted 11yrs posted by To-Email-Use-The-Envelope-Icon

Relaxation Oscillator as a perfect example of regenerative feedback

Relaxation Oscillator circuit is a perfect example of regenerative feedbac k that is special case of positive feedback....

0 comments posted 11yrs

posted by pchung705

0 comments posted 11yrs posted by pchung705

What size circuit breaker for Oven

Hi, The owners manual for our 240 volt oven says it has a max of 4730 watts. T he 2 pole circuit breaker says 30 amps o...

10 comments posted 11yrs

posted by sculptorpro

10 comments posted 11yrs posted by sculptorpro

Basic static electricity question

Let's say I walk over the carpet and get charged to 10KV. Then I touch a MOSFET. Is it fair to assume that the MOSFET wo...

8 comments posted 11yrs

posted by mhdpublic

8 comments posted 11yrs posted by mhdpublic

standing waves

We know what standing waves look like, on a string, or EM waves in a cavity. But what's the mathematical definition of...

8 comments posted 11yrs

posted by r_delaney2001

8 comments posted 11yrs posted by r_delaney2001