>
From: Mitch Ravitz, W1GI
re: 2 circuit and 3 circuit microphone plugs used with Sound Blaster mic
inputs...
Both work. The reason for the 3 circuit (ring, tip and sleeve) plug is to
provide power for an electret condenser type of microphone.
The "ring" is a power connection.
The tip is the mic audio and the sleeve is obviously ground.
W1GI
>
> Reply-To: wd3q@erols.com
> Subject: [WriteLog] Physical connection to SB Card
>
> Naive question here...
>
> Is the physical connection from the mike to SB card (mine is a SB 128 PCI) a
> 2-pin (ring tip) mono or 3-pin (ring-tip-sleeve) stereo?
>
> The Heil mike has a 2-pin mono plug. I've seen SB mikes at the store that are
> 3-pin.
>
> I don't want to plug a 2-pin into a 3-pin jack.
>
> I can't find any documentation on this anywhere.
>
> Thanks in advance!
>
> Eric W3DQ
> Washington, DC
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