General Electronics

Problems hearing DVD sound...... ???

I have a SONY DVD player that's about 5 years old or so. It workes well however on some of the "newer" DVDs I cannot he...

2 comments posted 20yrs

posted by David_nj_7

2 comments posted 20yrs posted by David_nj_7

555 timer

Hello, Is it possible to gt 10% duty cycle with a 555. I went to this web site: http://ourworld.compuserve.com/homepages...

10 comments posted 20yrs

posted by lera

10 comments posted 20yrs posted by lera

where to get WWV_ / GPS / other clock sync. device?

I need to get a daily time update via a serial connection to a microcontroller in my device. This is for use in a comme...

7 comments posted 20yrs

posted by scottk

7 comments posted 20yrs posted by scottk

Oscillator and audio harmonic filtering...

Greetings. I'm currently working on a project that requires recording multiple audible frequencies to the same audio fi...

13 comments posted 20yrs

posted by shrumj

13 comments posted 20yrs posted by shrumj

A Wireless Energy Transmitter

Hi, After reading about Nikola Tesla, I was wondering if there were any plans to make your own Wireless Energy Transmit...

10 comments posted 20yrs

posted by kidblast03

10 comments posted 20yrs posted by kidblast03

MIL-HDBK-217 Reliability Analysis

Hi Does anyone have a spreadsheet/program I could use to calculate reliability of a circuit i.e. using say MIL-HDBK-217...

1 comments posted 20yrs

posted by home

1 comments posted 20yrs posted by home

Test sockets, Lid actuators, Test boards and adapters

We are specialize in the supply, installation, commissioning and servicing of a range of industrial Test sockets, Lid a...

0 comments posted 20yrs

posted by zhanglingmu

0 comments posted 20yrs posted by zhanglingmu

Broken/Fried Parallel port...

Hello all, I have been working with an interfacing project lately and I think I have "screwed up" my parallel port. Whe...

8 comments posted 20yrs

posted by lmcgill2

8 comments posted 20yrs posted by lmcgill2

Summing non inverting op amp.

Hi, I've a voltage change 3-4 Volts which I need to change into a 0 to 4 Volt signal. I have used an inverting op-amp w...

2 comments posted 20yrs

posted by Daveatfernie

2 comments posted 20yrs posted by Daveatfernie

Sonar components

Hi, I am looking to build a Sonar-system that allows me to measure depth (under water). I found some references to Nati...

1 comments posted 20yrs

posted by lauwe

1 comments posted 20yrs posted by lauwe

AC+DC adder to drive Piezo

Hi, I bought an AC piezo driver (0-20V, bandwidth>100kHz). I also have a DC piezo driver (0-150V). I want to build some...

13 comments posted 20yrs

posted by titinicolas77

13 comments posted 20yrs posted by titinicolas77

How does anyone learn electronics these days?

When I was a youngster, I spent many a happy childhood hour tearing apart old radios and TVs, messing about with bags o...

8 comments posted 20yrs

posted by wtshyman

8 comments posted 20yrs posted by wtshyman

Vacuum cleaners and computers

Is it OK to use a vacuum cleaner right next to a computer? Could the vacuum cleaner generate magnetic fields strong enou...

10 comments posted 20yrs

posted by curious

10 comments posted 20yrs posted by curious

oscillator

Hello, The 555 timer has a maximum frequency of 1MHz. I would like to know if there is another chip that can go up to i...

11 comments posted 20yrs

posted by lera

11 comments posted 20yrs posted by lera

CMOS inverter dynamic behavior!

I'm studyng CMOS inverter dynamic behavior, and in my book I read at first that the two transistor NMOS and PMOS ohw co...

0 comments posted 20yrs

posted by roxf78

0 comments posted 20yrs posted by roxf78