We’re loving this Star Trek themed project from instructables user FredO2!
In this instructable I will show you how to make a Star Trek (Original Series) Wall Comm that, when the transmitter is activated, will sound the classical wall comm boatswain whistle followed by 1 of 4 recorded original series on-board transmissions, thereby indicating that you have to go to the location of the transmitter, or any other decided location, you can then press the white comm button allowing you to respond to the transmitter. It can also sound TOS alert klaxon plus red alert lights when the red alert button is activated.
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