Hobby Electronics Basics

  1. Home
  2. Hobby Electronics Basics
9387 Threads Posts
to

Worth reading in Hobby Electronics Basics

self biased LDO

hello i need some help with self biased opamp's LDO the circuit is here: 1. http://img91.imageshack.us/my.php?image=sel...
0 comments posted 20yrs
posted by utech
0 comments posted 20yrs posted by utech

running 50hz motor on 60hz

Sorry if I double posted. I am not sure the first post got through. Can I run this pump on 60 hz with/without a convert...
4 comments posted 20yrs
posted by pandreas
4 comments posted 20yrs posted by pandreas

50 hz motor on 60 hz

Can I run this pump on 60 hz with/without a converter. If I need a converter, would you know about how much one would c...
0 comments posted 20yrs
posted by pandreas
0 comments posted 20yrs posted by pandreas

UK Source for Weller TCP Heater Element !!!!

My TCP soldering iron packed up. I am look for a source to buy in UK. I have this Weller PU-3D with 24V/45W iron. I cou...
1 comments posted 20yrs
posted by NOspamMZBEG
1 comments posted 20yrs posted by NOspamMZBEG

Wifi: Yagi antenna design

I am thinking to build two antennas (directional) for WiFi between two computers, but want to be really clear on some d...
13 comments posted 20yrs
posted by dlwebb
13 comments posted 20yrs posted by dlwebb

What's ground on a transformer?

I don't have a lot of experience with things that plug into the wall outlet. But if I wanted, say, a +/- 12 volt power...
3 comments posted 20yrs
posted by glhansen
3 comments posted 20yrs posted by glhansen

USB BlueTooth dongle to Cellphone headset?

With a USB Bluetooth dongle can I send audio (mono talk, not music) from my PC to a Bluetooth cellphone-type mono earpho...
0 comments posted 20yrs
posted by none
0 comments posted 20yrs posted by none

Help me locate an LED please

I am in need of some LEDs (about 100-200 of them). Here are the specs: LED: surface mount or side-looking 880 nm IR abo...
1 comments posted 20yrs
posted by rdecosta
1 comments posted 20yrs posted by rdecosta

ac current swing

what's current swing?
2 comments posted 20yrs
posted by patrick.zou
2 comments posted 20yrs posted by patrick.zou

What semiconductor is this?

Have a on-board power transistor shaped 3 lead semiconductor that I cannot find via Google. This unit is on the output...
2 comments posted 20yrs
posted by ksleep
2 comments posted 20yrs posted by ksleep