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Computer Controlled Transmitter
Computer Controlled Transmitter Quantity in Basket: None
Price: $6.73
Shipping Weight: 0.20 pounds
The parts needed for the Computer Controlled Transmitter. One 1 Megahertz oscillator, one RS232 socket, and one alligator test lead.

All you need to send free text messages to friends without wires, without Internet fees, and without telephones.