davy (11/22/82)
#N:pur-ee:5600002:000:1227 pur-ee!davy Nov 17 11:11:00 1982 I suppose this is a good a place as any for this thing...... I want to build a box which will generate the Touch-Tone (tm) tones through a speaker. I eventually would like to use it so I can do touch-tone stuff through a dial phone. Being the dummy that I am, I know very little about doing something like this. If someone could answer the following questions for me, I'd sure appreciate it. 1) I know there are chips which generate these tones, but does anyone know what the "numbers" of the chips are, and where I can get one (does Radio Shack have them?) 2) Will I need something to amplify the tone the chip produces, or will it be loud enough by itself? 3) Are "A", "B", "C", "D" used that much, or would I be able to get by with just 0-9, *, and #? 4) What's the best way to power this thing? I had thought a 9-V battery would be nice, but if we're talking TTL, it wouldn't be too neat (fry, sizzle). 5) Does anyone have any plans/wiring diagrams/etc. for one of these, or do I gotta figger it out for myself? Please direct all responses to: decvax!pur-ee!davy ucbvax!pur-ee!davy ihnss!pur-ee!davy harpo!pur-ee!davy Thanks in advance, --Dave Curry