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my project not working

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With a 9V battery producing plus and minus 4.5V a good opamp will have an output of at least 3.5Vp-p so your 2.7Vp-p is not high enough. Maybe your old opamps will work if you use two 9V batteries to make a supply of plus and minus 9V.
 
yippee!!!!!! I changed u1 & u2 with tl082 op amps. now I see 4.6vpp at the anode of d3. the meter now deflects as it should. however, now the short lite turns on, without shorting the leads. wow!!!! thanks a bunch Audioguru.
 
I copied parts of the schematic where DC voltages (not AC) would turn on the shorted LED. Measure these voltages and post the measurements with no input capacitor being tested.
 

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hi ag, I think I got the right mix of op amps. when I use lm358 for u1ab, and tlo82 for u2a, everything works. i'am going to start to put in an enclosure. if I have more problems I'll be in touch. for now, I think were done. Audioguru, you da man!!! thanks so much. also thanks to mvs sarma and dr pepper. super!!!
 
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