Hobby Electronics Basics

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Voltage divider

Voltage divider is just two resistor connected is series, but powerful tool for calculating electrical potential of som...
0 comments posted 10yrs
posted by pchung705
0 comments posted 10yrs posted by pchung705

frequency dividers

I would like to know how to make some simple frequency dividers thank you for any answers Kurt Stocklmeir -- --- Posted...
1 comments posted 10yrs
posted by kurtcursed
1 comments posted 10yrs posted by kurtcursed

Charging lithium ion battery?

My ageing smartphone (an HTC Touch Pro 2, running Windows Mobile 6) has suddenly developed the show-stopping fault of r...
3 comments posted 10yrs
posted by me
3 comments posted 10yrs posted by me

Adhesive to hold Speaker crossover components

I'm replacing a couple of capacitors in speaker crossover. The parts have a glue that holds them tight to the PCB, the...
16 comments posted 10yrs
posted by nojunk
16 comments posted 10yrs posted by nojunk

Microcontroller NG

I am somewhat disappointed at the lack of newsgroups dedicated to microcontrollers. Specifically the more popular ones...
5 comments posted 10yrs
posted by kevinfglover
5 comments posted 10yrs posted by kevinfglover

Placing noise on mains?

Some of the household circuits gadgets I made decades ago have recently been getting activated spuriously. I suspect so...
9 comments posted 10yrs
posted by me
9 comments posted 10yrs posted by me

Better lighting for electronics hobbyists

Buy a headlamp, foo! Just in case anybody doesn't already know. If only I had one when I was electronics hobbying many...
0 comments posted 10yrs
posted by always.look
0 comments posted 10yrs posted by always.look

Multimeter and Signal Generator

Hi, I am using the following multimeter http://www.repeater-builder.com/radio-shack/22-812/22-812-operating-manual-en.p...
5 comments posted 10yrs
posted by walravenmelissa
5 comments posted 10yrs posted by walravenmelissa

How to debug and fix voltage droop in SMPS

Hi all, I am trying to get a TI TLV61220 step-up voltage converter to work properly under load. This is a difficult par...
6 comments posted 10yrs
posted by c.difficile
6 comments posted 10yrs posted by c.difficile

OT: Great-grandson

OT: Great-grandson born this morning at 6AM MST ;-) ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations...
7 comments posted 10yrs
posted by To-Email-Use-The-Envelope-Icon
7 comments posted 10yrs posted by To-Email-Use-The-Envelope-Icon

Before it's put on a slow boat from China

I need a 2.7uf 63V non-polarized capacitor for a speaker crossover. It is a radial lead 10mm x 22mm cap. Ebay has them...
13 comments posted 10yrs
posted by nojunk
13 comments posted 10yrs posted by nojunk

Bi-stable Multivibrator

Need a flip/flop bistable with following features. Q and not Q must change states upon each positive input pulse. I hav...
17 comments posted 10yrs
posted by strmbrgr2
17 comments posted 10yrs posted by strmbrgr2

Power Supply

Hi, I have been assigned to do some "switching power" ESD testing recently. I a m a beginner engineer. So, please forgi...
1 comments posted 10yrs
posted by erica.cross1989
1 comments posted 10yrs posted by erica.cross1989

OBD II Device

Does an OBD II device have the capability to read out battery voltage and charge / discharge current?
1 comments posted 10yrs
posted by BobR
1 comments posted 10yrs posted by BobR