• on Miscellaneous Electronics
  • Published in issue 7/2010 on page 25
About the article

8-channel DTMF Link: Encoder

(Summer Circuits 2010 article)

The DTMF encoder circuit shown here is based on the HT9200B tone generator device produced by Holtek and distributed by Futurlec among others. The encoder is complemented by a decoder elsewhere in this publication.
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