Hobby Electronics Basics

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Infrared port on motherboard -- how to use?

What do I need to use the infrared ports built into motherboards? I have an infrared remote control for a Hauppauge TV...
0 comments posted 21yrs
posted by larrymoencurly
0 comments posted 21yrs posted by larrymoencurly

Butane powered battery?

I seems to recall a blurb sometime ago about using butane as a source of electricity by mean of mini generator that bur...
0 comments posted 21yrs
posted by impmon
0 comments posted 21yrs posted by impmon

Advise wanted on equipment purchase

I have started a small Electronic consultation company and have a small budget of $7000 to buy few equipments like scop...
9 comments posted 21yrs
posted by siliconmike
9 comments posted 21yrs posted by siliconmike

12v to 6v converter/regulator

I have looked all over for a chip or a schematic that allows me to convert 12v to 6v and I can't find anything. I can f...
7 comments posted 21yrs
posted by davidspam
7 comments posted 21yrs posted by davidspam

understanding the bubblejet circuitry

I'd like to understand the circuitry on the chip inside the Canon BC-02 cartridge. I can't find any information on the W...
9 comments posted 21yrs
posted by not_here.5.species8350
9 comments posted 21yrs posted by not_here.5.species8350

Using DTMF to drive solenoids

Dear All, I am new to DTMF as well as to this group so forgive me in case of "stupid" questions... I am looking for har...
11 comments posted 21yrs
posted by Kulos
11 comments posted 21yrs posted by Kulos

condensators

Is it possible to switch two condensators paralell or one after the other or isn=B4t both not possible?
7 comments posted 21yrs
posted by Tommi-Vogel
7 comments posted 21yrs posted by Tommi-Vogel

Op amp confusion

I'm using a lf442cn 8 to +5v 4 to gnd 0.1uf cap between 8 and 4 2 tied to ground for now 3 has a 100ohm resistor 1 has...
11 comments posted 21yrs
posted by chrispol
11 comments posted 21yrs posted by chrispol

question about "Network Interface" phone jack

After living in the same place in New York City for years, I recently moved to another place (also in New York City). T...
2 comments posted 21yrs
posted by wylbur37nospam
2 comments posted 21yrs posted by wylbur37nospam

BCD Clock

hi all, I`m trying to build a BCD clock using bcd counters but i`m having problems resetting the clock from 12:59 to 01...
2 comments posted 21yrs
posted by demo001
2 comments posted 21yrs posted by demo001

Soldering Iron

Can someone tell me if this a good deal and of reasonable quality for a hobbiest? http://www.megaproductions.net/Solderi...
9 comments posted 21yrs
posted by 1qazse4
9 comments posted 21yrs posted by 1qazse4

MB88303 TV DISPLAY CONTROLLER

I am looking for the data sheet or pin out of the MB88303 and Google has been no help, does anyone know where I can find...
0 comments posted 21yrs
posted by timwm
0 comments posted 21yrs posted by timwm

Flashing LEDs proportion to Servo position

I have a LED array already made, complete with resistors and 9.2V battery pack. I would like to be able to flash the LE...
5 comments posted 21yrs
posted by upgrdman
5 comments posted 21yrs posted by upgrdman

Dimming LEDs

Dear All, I am currently building an art project but cannot seem to get my LED's to dim properly. I have tried capacito...
4 comments posted 21yrs
posted by sjg_18_
4 comments posted 21yrs posted by sjg_18_