What size is the headphone jack for casio lk-90 tv electric organ?

Yes; there is now malware available that looks like applications that you get from app stores that acts like a virus.
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What size is the headphone jack for casio lk-90 tv?

Yes; there is now malware available that looks like applications that you get from app stores that acts like a virus.
http://wiki.answers.com/Q/What_size_is_the_headphone_jack_for_casio_lk-90_tv

The Hammond M-3 Electric Organ was manufactured between 1955 and 1964. The M series organs were designed to allow Hammond to enter the home organ market, in addition to its primary market of religi... Read More »
http://www.wikihow.com/Install-a-Line-Out-Jack-on-a-Hammond-M3-Electric-Organ

Yes, it does. If you're buying a costume, it may or may not include them.
http://wiki.answers.com/Q/What_size_headphone_jack_is_used_tv