Editing ParaNet BBS/All About Gravitational Waves (section)

==Diagrams==
<pre>
                                 Fig. 2 - A Basic gravity-wave detector is very
 - - - - )| - - - - - - - - -    simple.  The charge build-up on capacitor C1
 .       Cx 470pF           .    due to gravity-wave impulses is amplified by
 .                          .    IC1 for output.
 .                          .
 .    R1 1.3M               .        R2 see text
 o----v^v^v^----------------o   -----v^v^v^--------------------O DC Output
 |                          |   |
 |             ^            |   |
 |          _  | +9V        |   |
 |        2| \_|7           |   |
 o---------|   \_           |   |
_|_        |IC1  \_ 6       |   |     C2 see text
___ C1     | 741  _>--------o---o-----|(-----------------------O Audio Output
 |  .22   3|    _/
 o---------|  _/4
 |         |_/ |
 |             v -9V
 |
 |-------------------------------------------------------------O Gnd



                                                               O Output
      R1 500K     R2 1.5M          R5 100K                     |
 -----^v^v^v------^v^v^v--    |----^v^v^v----------------------o
 |                   ^   |    |                                |
 |                   |   |    |                                |
 |          _        |___|    |       _    ^ +9V               |
 |        2| \_          |    |     6| \_  |                   |
 o---------|   \_        |    o------|   \_|8                  |
_|_C1      |IC1-a\_ 1    |    >R4    |IC1-b\_  7               |
___ .22    |1/2   _>-----o    >5K    |1/2   _>-----------------|
 |        3|1458_/       |    >     5|1458_/
 o---------|  _/       R3>    |  |---|  _/ |4
 |         |_/        10K><---|  |   |_/   |
 |                       >       |         v -9V
 |                       |       |
 |-----------------------o-------o-----------------------------O Gnd

</pre>

{| class="wikitable"
|+ Fig. 4 -- A buffered output stage makes the gravity-wave detector easier
to use.
|-
! Parts List - Simple Detector !! Parts List - Buffered Detector
|-
| All resistors 1/4-watt, 5%. || All fixed resistors 1/4-watt, 5%.
|-
| R1 - 1.3 megohm || R1 - 500,000 ohms
|-
| R2 - see text || R2 - 1.5 megohms, potentiometer
|-
| Capacitors || R3 - 10,000 ohms, potentiometer
|-
| C1 - 0.22 uF || R4 - 5000 ohms
|-
| C2 - see text || R5 - 100,000 ohms
|-
| Cx - see text || Capacitors
|-
| Semiconductors || C1 - 0.22 uF
|-
| IC1 - 741 op-amp || Semiconductors
|-
|  || IC1 - 1458 dual op-amp
|}


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