If you ever used a soldering iron or a bread board, you can make your 100/200/ 600 talk for under $30. Radio Shack carries SP0256 speech chip that can be easily interfaced with a parallel printer port in back of 100/200 or any other computer with Centronics port .The chip costs $12 and few neccessary parts can be dug up from junk box or purchased for a few bucks. Instructions: A) Gather parts: 1) SP0256 chip: it comes with a complete circuit diagram and list of external components. 2) 26 pin IDC connector: you can use larger ones and cut it down to fit. small speaker and amplifier(not needed if you install LM386 audio amplifier as shown on the diagram.) Note: if you can't find 3.120 MHz crystal, 3.14 MHz that Radio Shack has will work. B) Wire up the components as shown on the diagram. C) Lead interfacing wires from the speech unit and the IDC connector and connect the points on left column(corresponding port pins on IDC pins) with those in the right column(speech chip pins) Par port <-> SP0256 STROBE(1) - ALD(20) PD0(3) - A1(18) PD1(5) - A2(17) PD2(7) - A3(16) PD3(9) - A4(15) PD4(11) - A5(14) PD5(13) - A6(13) BUSY(21) - LRQ(9) GROUND(any even# pins) - Vss(1) D) next, plug the circuit to the printer port. E) to create speech, send the proper codes to the speech unit by LPRINT CHR$() command. I suggest using a socket for the SP0256 if you are soldering. You'll need separate power supply. If you know how, you can use the computer power supply. But remember, the unit draws lots of current. If you have any problems, contact.