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Photo n.
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Description : First TNC built around 1990: great satisfaction as before realization that combines the radio with the computer... about the first computer it was the glorious Commodore 64 and accompanied by a small 14 inch black and white TV as monitor. The software was built from the PacTerm program. In subsequent times adapted appropriately for early 386/486 PCs. Regarding the electrical diagram of the modem is simple and everything\n revolves around the 7910 integrated with the necessary interfaces for connection with the computer. Plus you can see it in the practical implementation a switching is inserted which serves to use the RTX normally with microphone and speaker, or connected to the modem for digital use.