| Author | Views | Views Today | Rank | Comments |
| 80,370 | 49 |   |
125 |
| Author | Views | Views Today | Rank | Comments |
| 80,370 | 49 | |
125 |
| Stethoscopes are not only useful for doctors, but home mechanics, exterminators, spying and any number of other uses. Standard stethoscopes provide no amplification which limits their use. This circuit uses op-amps to greatly amplify a standard stethoscope, and includes a low pass filter to remove background noise. |
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| sir, here we are facing a huge problem to make this Electronic Stethoscope..everything is ok except the electric mic which can collect the heart beat...we cant find such a mic which can collect the heartbeat and convert it to a voltage...please help us. | ||
| hi ive tried making the unit. ive tried running it, it does not run, LED does not light up, no sound. Battery are warm. can you help me . | ||
| sir,i have try my best but there is some worming sound from the out put.how can i eliminate this sound. | ||
| sir, here we are facing a huge problem to make this Electronic Stethoscope..everything is ok except the electric mic which can collect the heart beat...we cant find such a mic which can collect the heartbeat and convert it to a voltage. if you could send me a photo of how you assembled your components especially fixing mic in the Stethoscope | ||
| hi..... can u please specify the power rating of the ckt. and i planning to assemble this circuit on a pcb. even let me knoe bout the procedure involved in shielding of the condenser microphone. will b glad to be guided | ||
| If the cicuirt needs 9 volts then why do you have two 9V batteries in series. This would deliver 18V. | ||
| sir, here we are facing a huge problem to make this Electronic Stethoscope..everything is ok except the electric mic which can collect the heart beat...we cant find such a mic which can collect the heartbeat and convert it to a voltage. | ||
| sir, here we are facing a huge problem to make this Electronic Stethoscope..everything is ok except the electric mic which can collect the heart beat...we cant find such a mic which can collect the heartbeat and convert it to a voltage...please help us. | ||
| Aaron I presume? Hi, I'm a busy RN who recently lost some hearing and am looking for an inexpensive alternative that may help with work. That aside, I have always been interested in learning electronic circuitry and would love to try this out. I've been learning a lot online and from my local electronics supplier and slowly making my way ... just wondering if you could send me a photo of how you assembled your components. Any helpful "golden-nuggets" of information to help me along the way would be appreciated. Kelly | ||
| how much current the circuit carry? Also mention its power consumption...? | ||
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