General Electronics

phone charger - curious.

Hi all, By no means am I an electronic guru but I was wondering about something I've noticed. When I charge my phone at...

4 comments posted 20yrs

posted by scotsman_uk

4 comments posted 20yrs posted by scotsman_uk

GMR sensors and inductors used to detect metal / magnetic fields

Hello everyone, I have a question about metal detection and magnetic fields and such. I know that inductors and GMR sen...

1 comments posted 20yrs

posted by string_fire

1 comments posted 20yrs posted by string_fire

life span durable ground based 'satellite' device.

I'm developing an electronic device in order to collect and store a wide range of sensory (imagery, sound) data of an o...

1 comments posted 20yrs

posted by alphacentauri

1 comments posted 20yrs posted by alphacentauri

Differential amplifier with DC offset

Hi, I made a differential amplifier using JFETs. The output of this amplifier sits at 5 volt DC offset. Now before i fe...

5 comments posted 20yrs

posted by archiees

5 comments posted 20yrs posted by archiees

Crystal Oscillator High Voltage

Can you change the frequency a crystal resonates at by applying a very high voltage across it(through a high value resi...

5 comments posted 20yrs

posted by persimmonseven

5 comments posted 20yrs posted by persimmonseven

Laser-based display?

Hi folks, I'm interested in creating a display device that I can build cheaply and which can cast an image onto a wall,...

7 comments posted 20yrs

posted by yubbers9

7 comments posted 20yrs posted by yubbers9

Large LED display?

Hi all, Has anybody here ever tried to create a large display using just LEDs, like a 640x480 display for eventual use...

11 comments posted 20yrs

posted by yubbers9

11 comments posted 20yrs posted by yubbers9

hp officejet 4110 all-in-one

I just found a hp officejet 4110 all-in-one printer-fax-scanner-copier on the street in a pile of trash. It didn't have...

21 comments posted 20yrs

posted by ara

21 comments posted 20yrs posted by ara

GSM dialer for Alarm

GSM Dialers for household alarm systems cost a lot when compared to the cost of a mobile phone. I believe it should be...

4 comments posted 20yrs

posted by colin.watters

4 comments posted 20yrs posted by colin.watters

FREE Information Seminar

Hi there Canadian Immigration Consultancy will have a FREE Information Seminar Schedule on How to become an Independent...

1 comments posted 20yrs

posted by fvnegrosa

1 comments posted 20yrs posted by fvnegrosa

DVD player freezes up

I have an Audiovox Movies 2Go player in a van. It will no longer play a full movie. It will play for as little as 15min...

6 comments posted 20yrs

posted by brett

6 comments posted 20yrs posted by brett

sorry

Hi. I'm sorry I wasn't able to deliver your message to one or more destinations. Undeliverable mail to snipped-for-priva...

2 comments posted 20yrs

posted by a012210

2 comments posted 20yrs posted by a012210

-- Magnetic motor 1, the static magnetic field 1) Motor

-- Magnetic motor 1, the static magnetic field 1) Motor, Edison is a classic -- for the motor commutator. It gave birth...

3 comments posted 20yrs

posted by a012210

3 comments posted 20yrs posted by a012210

802.11x, PCMCIA (or USB) adapter with RSSI and external antenna

Hi, There are vast amunt of variety for 802.11 network adapter cards in the market. For an experiement I am searching f...

2 comments posted 20yrs

posted by MiemChan

2 comments posted 20yrs posted by MiemChan

Voltage reduction

Hi, I have had a watercooled PC for a couple of years now, it's quiet but could be made quieter by reducing the speed o...

9 comments posted 20yrs

posted by ian_dunbar6

9 comments posted 20yrs posted by ian_dunbar6