Using the cable from a PlainTalk microphone to connect another recording device is unsupported, voids your warranty, and can cause irreparable damage to the logic board on some Macintosh computers.
The microphone port on all Macintosh Computers that use the PlainTalk microphone is a standard stereo 3.5mm stereo plug. The Plaintalk microphone has an extra 1/4 inch on the tip to get +5 volt power from the logic board. It is also a mono plug, so the rubber rings on it do not match a stereo plug. The microphone plug has 2 separators. The one near the end is used to isolate the power at the tip. This can be confusing to those who think that our port is longer and has non-standard spacing for the left and right channels.
To connect an RCA equipped line-level device such as a VCR or home audio equipment to your Macintosh, a standard RCA to 3.5mm stereo adapter cable can be used. An example of this is a 6 foot stereo mini to RCA cable available from most electronic suppliers.
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