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lord loh. said:Are TL071 available easily in India? Is it commonly used in consumer electronics? (An indication of availability in the market)
A piezo buzzer is no good as a sensor, you need a piezo transducer.lord loh. said:I have to amplify signals from a biezo buzzer which is used as a sensor in a stethoscope
The LM380 is still in full production at National Semi. Digikey has thousands in the 14 pins package in stock and Newarkinone has 680 in the 8 pins package in stock.lord loh. said:Can any one suggest replacements for LM380 preamplifier. The LM380 seems to have been discontinued.
I know but put a big enough amp on the end and it shouldn't be a problem. I'd gofor an electret mic anyway.Dr.EM said:I see the point about the crystal, I just wouldn't think it would give great low frequencies like a heartbeat produces? The 071 is a good choice as it has FET buffered inputs to give a high input impedance, required for use with the piezo.
definitely yes .lord loh. said:.
To akg: Are TL071 available easily in India? Is it commonly used in consumer electronics? (An indication of availability in the market)