General Electronics

  1. Home
  2. General Electronics
5208 Threads Posts
to

More questions on microphones

Okay, so I have learned how the microphone I purchased that comes with what looks like a stereo plug expects to be used...
5 comments posted 14yrs
posted by db5151
5 comments posted 14yrs posted by db5151

Odd behavior of a switch

We have three light switches in a hall way, and stairs that lead down to the lower level. One switch is on a wall, and...
0 comments posted 14yrs
posted by wolftracks
0 comments posted 14yrs posted by wolftracks

Question on uni-directional microphones

Just bought a more-or-less uni-directional mic (intended for VOIP) for my latest project, and saw that it comes with wh...
4 comments posted 14yrs
posted by db5151
4 comments posted 14yrs posted by db5151

possible ground loop

Hello all, I am trying to power an Atari 2600 video computer system and an audio amplifier from the same 9 volt wall wa...
6 comments posted 14yrs
posted by redodd
6 comments posted 14yrs posted by redodd

jamming the cops

The effectiveness of police stems largely from their team training, like soldiers - always backing each other up. Proce...
3 comments posted 14yrs
posted by r_delaney2001
3 comments posted 14yrs posted by r_delaney2001

Questions about my pwm sine inverter

Hello I never succed with PIC programing, so I've assembled a schematic of a simple version pwm sine inverter. I have f...
0 comments posted 14yrs
posted by ba221
0 comments posted 14yrs posted by ba221

Regenerative radio receiver book

Hi, I have put together a short book on regenerative radio receivers to mark the 100'th year of the discovery. It is av...
0 comments posted 14yrs
posted by bitterlemon40
0 comments posted 14yrs posted by bitterlemon40

LED flashlight

I was looking at some LED flashlights, with ratings from 50 to 150 lumens. A p-n junction is a p-n junction, how do the...
17 comments posted 14yrs
posted by r_delaney2001
17 comments posted 14yrs posted by r_delaney2001

Voyager 2 computer and electronics

Hi I saw a documentary about it, and was thinking - what kind of electronics were in there? In 1977 at least the 4004 w...
3 comments posted 14yrs
posted by sonnichjensen
3 comments posted 14yrs posted by sonnichjensen

car phone

In old movies, you sometimes see something called a 'car phone'. Always in a limousine. How did those work? -- Rich
12 comments posted 14yrs
posted by r_delaney2001
12 comments posted 14yrs posted by r_delaney2001

Who makes 2N part#s?

Any idea who is that makes the line of 2N#### parts? Am trying to find cross-referrences, and all I have is an NTE cros...
5 comments posted 14yrs
posted by db5151
5 comments posted 14yrs posted by db5151

OT: PCB in old music video

this is goofy http://www.youtube.com/watch?feature=player_detailpage&v=ou4oQhfJ5yY
2 comments posted 14yrs
posted by presence
2 comments posted 14yrs posted by presence

What did the NTE199 sub for?

I asked this question (here, I think) a while back, and got my answer from some kind soul, but can't remember what that...
14 comments posted 14yrs
posted by db5151
14 comments posted 14yrs posted by db5151