Hobby Electronics Basics

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Surprise !!! Get $5-50 PCB cash coupons

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0 comments posted 10yrs
posted by weiku0612
0 comments posted 10yrs posted by weiku0612

Wind Sensor

I am trying to test the following wind sensor. I hooked up the sensor to the micro. http://www.inspeed.com/anemometers/...
34 comments posted 10yrs
posted by m.john.khan
34 comments posted 10yrs posted by m.john.khan

Viewing Currents on a Scope

Guys, I'd like to view the phase shift between currents and voltages testing various combinations of inductor, resistor...
16 comments posted 10yrs
posted by jb9889
16 comments posted 10yrs posted by jb9889

long antenna

During my workout yesterday, I attached a 3 meter extension to the earphone cord of my radio, as I wanted to place it a...
4 comments posted 10yrs
posted by r_delaney2001
4 comments posted 10yrs posted by r_delaney2001

New LTspice Model Posted

See AD790_JT.zip on the Device Models & Subcircuits Page of my website: Behavioral model based on the datasheet only. C...
3 comments posted 10yrs
posted by To-Email-Use-The-Envelope-Icon
3 comments posted 10yrs posted by To-Email-Use-The-Envelope-Icon

Interface between Sat phone and PC SW?

Is there a way of connecting a Windows PC to a satellite phone so that the following can be done from software running...
3 comments posted 10yrs
posted by mjames2393
3 comments posted 10yrs posted by mjames2393

OT: PERL Question

What is the most compact way to express this IP range with a PERL regular expression: 114.108.128.0 - 114.108.191.255 T...
5 comments posted 10yrs
posted by To-Email-Use-The-Envelope-Icon
5 comments posted 10yrs posted by To-Email-Use-The-Envelope-Icon

Ohm's law

Ohm's law is not applicable on resistors in DC regime only, but on capacitors and inductors in AC regime as well. This...
1 comments posted 10yrs
posted by pchung705
1 comments posted 10yrs posted by pchung705

OT: Video Recording

What's the best program to use to record your PC screen as you perform various operations? ** I'm considering creating...
12 comments posted 10yrs
posted by To-Email-Use-The-Envelope-Icon
12 comments posted 10yrs posted by To-Email-Use-The-Envelope-Icon

Anyone : recommend a spy camera?

I need something like a wifi internet camera that I can mail to my old man and he can just plug it in and let me see ho...
4 comments posted 11yrs
posted by default
4 comments posted 11yrs posted by default

Air Core Electro Magnet Construction

Given a volume and dimensions for an air core electro magnet, how does one determine the wire gauge and number of turns...
14 comments posted 11yrs
posted by bperryb
14 comments posted 11yrs posted by bperryb

OT: Does this style of cookie manager exist?

Does this style of cookie manager exist? To me an ideal cookie manager would do this... Accept cookies when I visit a p...
19 comments posted 11yrs
posted by To-Email-Use-The-Envelope-Icon
19 comments posted 11yrs posted by To-Email-Use-The-Envelope-Icon

current divider

Interesting thing about current divider is that current through resistor R1 is directly proportional to resistor R2 val...
1 comments posted 11yrs
posted by pchung705
1 comments posted 11yrs posted by pchung705

LTspice Tip

As I work my way to a Universal OpAmp Spice Model that you only have to feed the subcircuit 10-12 numbers from the data...
10 comments posted 11yrs
posted by To-Email-Use-The-Envelope-Icon
10 comments posted 11yrs posted by To-Email-Use-The-Envelope-Icon

Reviving 'dead' PP3 NiMH?

Some of my PP3s steadfastly refuse to recharge. Neither in my 'intelligent' nor basic chargers. Despite being years old...
6 comments posted 11yrs
posted by me
6 comments posted 11yrs posted by me