| anonymous |
Op Amp Radio |
Wednesday, January 27, 2010 10:58:35 AM |
| Are you supposed to connect Vcc to the Vcc pin on the op-amp?
Otherwise, where? |
| Subhajit |
Op Amp Radio |
Wednesday, January 06, 2010 10:59:01 AM |
| My model of OP-AMP radio is catching a lot of noise. How can I boost the signal to noise ratio? I think the problem lies in impedance mismatching with the antenna. Is it so? |
| cooltech |
Op Amp Radio |
Tuesday, December 29, 2009 12:33:23 PM |
| simple circuit but what about the output its working or not ? |
| JEREMY |
Op Amp Radio |
Saturday, November 14, 2009 4:43:42 PM |
| You can use any coil or LC circuit that you might find for crystal radio designs on the web. LM386 amp works great with a small speaker. Can someone post coil spec's for SWL coverage. |
| kuldeep |
op amp radio |
Thursday, August 20, 2009 7:28:04 AM |
| what is a loopstick anteena |
| dhana |
Op Amp Radio |
Saturday, July 18, 2009 5:24:52 AM |
| can u tell me about the loop stick antenna ana L1 in the figure |
| keith |
Op Amp Radio |
Monday, March 09, 2009 7:43:04 PM |
| I'm only getting one station.. wonder whats hooked up wrong, or if this radio is only supposed to get one station. But i have it hooked up to a push pull transistor audio amp n speaker i had already built on breadboard for my psp and that one station comes thru loud and clear. And i have a 4 wire loopstick plus a 6 pronged tuning cap. one sides for am the other for fm. not sure how thats all supposed to go. (Editor's notes: Place a 1K resistor in parallel with the detector.) |
| 08ES 25 MUET,PAKISTAN |
Op Amp Radio |
Monday, March 09, 2009 2:56:48 PM |
| THE PURPOSE OF GERMANIUM DOIDE IS TO DEMODULATE THE SINGNAL OBTAINED FROM LC-TANK CIRCUIT, WHICH IS BEING CHARGED BY EMF INDUCED IN ANT BY SIGNALS. GERMANIUM DIODES ARE MORE SENSITVE BCZ THEIR BARIER IS LESS(0.3V) AS THAT OF SILICON(0.7V). OP-AMP SIMPLY AMPLIFIES DEMODULATED SIGNAL FROM DIODE. |
| anonymous |
Op Amp Radio |
Monday, February 09, 2009 6:31:07 AM |
| IN FIGURE THERE IS SYMBOL OF INDUCTOR & ANTENNA, BUT IN DESCRIPITION L1=LOOP STICK ANT:, SO WHATS VALUE OF INDUCTOR ITS VERY CRITICAL PLEASE SOMEBODY EXPLAIN IT, FROM T.LAMZON |
| anonymous |
Op Amp Radio |
Monday, February 09, 2009 6:25:43 AM |
| PLEEEEEEZ SOMEBODY TELL ME ABOUT ANTENNA. IS IT PIECE OF WIRE OR SOME SORT OF INDUCTOR? PLEEEEEEEEEZ GIVE DESCRIPTION. THANKS IN ADVANCE. |