#821 DTMF (part 4 of 6) HT9200 Encoder Hardware Working

#821 DTMF (part 4 of 6) HT9200 Encoder Hardware Working

Episode 821 I wire up the part and set it to send tones. There are some special test tones too. Be a Patron:   / imsaiguy   MUSTOOL MDS120M Oscilloscope: https://bit.ly/3engWhg