🚀 go-pugleaf

In article <92323.19415834II5MT@CMUVM.CSV.CMICH.EDU> 34II5MT@CMUVM.CSV.CMICH.EDU (John Goggan) writes:
>This comes up now and then and I'm always interested, but no one ever
>seems to come up with a definate answer.  I'm looking for a schematic
>for a touch-tone decoder circuit.  Something that simply takes audio
>input and lights an appropriate LED for 0-9,#,*,A-D when it "hears"
>
>I'd almost given up hope and forgotten about the project for a while when
>I recieved the new All Electronics catalog (#492)...  One of the items
>offered is some "revolutionary toner-transfer paper" or something.
>Anyways, the picture included next to that ad is one side of a pc board
>etching -- and the title is etched on it -- "TONE DECODER."  If you

If you have a FAX machine, I'll send you a schematic for a DTMF to
LED display which only uses 9 parts.

John

(If I can figure out how to get a postscript file out of Island Draw,
 I'd be willing to post it to the net. )


-- 
| ONE LINE NOVEL: She backed away from the corpse slowly, not so much out  |
| of fear, but simply unsure of what the crowd expected her to do with it. |
+--------------------------------------------------------------------------+
| John R. Schuch  -  Motorola Computer Group  -  Manufacturing Engineering |