Differences
This shows you the differences between two versions of the page.
| Next revision | Previous revision | ||
|
546cic1 [2011/12/12 12:54] n1eu created |
546cic1 [2011/12/12 12:57] n1eu |
||
|---|---|---|---|
| Line 1: | Line 1: | ||
| ====== Omni C - IC1 Replacement Audio Mod ====== | ====== Omni C - IC1 Replacement Audio Mod ====== | ||
| - | //(from Ten-Tec reflector June 2005)// | + | //(addapted from posts to Ten-Tec reflector June 2005 by AB0N)// |
| - | Consider changing the IC Op Amp in the AGC circuit. This not a 100% cure but I found it to help on all but | + | Consider changing the IC Op Amp in the AGC circuit. This is not a 100% cure for the AGC popping but I found it to help on all but |
| the strongest signals. I used a Burr Brown OPA2604AP Dual Op amp in | the strongest signals. I used a Burr Brown OPA2604AP Dual Op amp in | ||
| - | there. I did the experiment several years ago. As memory serves the TI | + | there. I did the experiment several years ago. As memory serves the TI TL072 or 82 |
| chips were good but I liked the Burr Brown chip mentioned above. Burr | chips were good but I liked the Burr Brown chip mentioned above. Burr | ||
| Brown was aquired by TI. These parts are still available from DigiKey. I | Brown was aquired by TI. These parts are still available from DigiKey. I | ||
| Line 15: | Line 15: | ||
| gain for the stronger signals but the popping to my ears is less annoying. | gain for the stronger signals but the popping to my ears is less annoying. | ||
| As always your mileage may vary. I hope this helps. | As always your mileage may vary. I hope this helps. | ||
| - | - AB0N | + | |
| + | // | ||
| + | (although suggested in the context of improving AGC popping, this chip replacement should provide a noticeable improvement in the overall audio quality)// | ||
| + | |||
