Hello can some one please help me find a fully functional finished working audio op amp circuit with microphone & speaker on flying leads please so i can put a microphone @ the window the hear nature during the day & or bugs @ night. I'd like to move it around the house, hence flying leads 10m plus would be good.
I have built up Afrotechmods circuit which works on a LM358, but can only get a few metres on the speaker end & 1m on the elec mic end, & then it sounds like a water fall in the back ground which is what audioguru said would happen.
Audiojuru suggested to use a OPA134, i will order this from Element14 if i have to, but would any of these chip do from Jaycar Electronics which i can source easily.
Thank you.
Ernie H.
I have built up Afrotechmods circuit which works on a LM358, but can only get a few metres on the speaker end & 1m on the elec mic end, & then it sounds like a water fall in the back ground which is what audioguru said would happen.
Audiojuru suggested to use a OPA134, i will order this from Element14 if i have to, but would any of these chip do from Jaycar Electronics which i can source easily.
Thank you.
Ernie H.
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