Problem using PC headset mics with a Yamaha audio mixer...

[acousticdj]

This is my mixer:
http://usa.yamaha.com/products/live_sou ... mode=model

I believe the only way to connect mics is through the XLR inputs on all four channels.

I have two of these:
http://www.bhphotovideo.com/c/product/3 ... _Jack.html

And I'll get a male xlr end for the 3rd box.

I just noticed the other 10k resistor on the diagram. Rather, it just made sense to me. So it goes "after" the capacitor (on the way to the input on the mixer) and hooks up with the cold wire. To a non-electronics guy that looks like a short circuit... but then that's kinda what you want there right?

I will definitely use shielded cable and a metal box. My house is full of CFL bulbs lol.

[acousticdj]

Also: Is 10 uF (Steve) the same thing as 100 ufd (Koz) in measurement?
Thanks

[acousticdj]

So I think this is my shopping list for 3 boxes for the three headset mics:

Resistors: (3 of each)
2200 ohms (or 2.2K -- red, red, red)
10,000 ohm (or 10K -- brown, black, orange)

Capacitors: (3 of these)
10 uF (100 ufd) at 15v

3 Terminal strips (dual row barrier)
3 Metal project boxes
3 9v batteries
3 9v snap connector leads

1 Male end of an XLR cord (I have two 1/8" to XLR adapters already)
3 Female ends of 1/8 extension cable

Also Koz, about the second resistor:
As I'm attempting this the "non-solder" way...

At about 6:15 in this video:
http://m.youtube.com/#/watch?v=JPxqluZkS2o

...there is a photo of how I want to essentially lay my circuit out. In this case, where would you recommend I put the other 10k resistor? Could I hook it over the top from where he has the yellow wire to where the grounds all connect?

So close...

[kozikowski]

With one other variation. Sometimes the 1/4" connection will have two thin black bands around the shaft instead of one like that one has. The mixer should say what the connections do, or dip into the instruction book.

Koz

[kozikowski]

I knew I had it here somewhere. This circuit is designed to connect to the 1/4" plug on the right, but you will be soldering it to your XLR plug.

The 10K resistor stabilizes the voltages and currents in the circuit before you plug the mixer in. If you don't use that, you could get a serious pop or bang the first time you plug it in.

No, the 10 ufd is not that same as the 100 ufd, but you should go with what you have. If you're talking it may not make any difference, but if you're singing, the smaller value may shave a little moxie from your bass notes.

Koz

[kozikowski]

Oh, and plug the mic in first. Then the mixer. Koz

[kozikowski]

I need to stop what I'm doing for a while to sit through the video and look at your pictures. Koz

[kozikowski]

That link sends me to a Mobile Video page with a bunch of music videos on it. What's the full title of the piece? Koz

[kozikowski]

I just noticed the other 10k resistor on the diagram. Rather, it just made sense to me. So it goes "after" the capacitor (on the way to the input on the mixer) and hooks up with the cold wire. To a non-electronics guy that looks like a short circuit... but then that's kinda what you want there right?

Right. The high value of the resistor is chosen not to interfere with the sound or other systems, but over a brief time, it bleeds off voltage that accumulates when you plug the microphone in to the circuit. If you don't get rid of the voltage gently, it could discharge abruptly when you plug in the mixer. BANG!

[email protected]#$%

If you happen to be connected to a club sound system when you do that, you could put out a window.

Koz

[acousticdj]

Sorry bout the link. The full title is:
"Micro con resistencia y condensador autoconstruido I"
@ about 6:15
Thanks