Lawson, W4EMF, has done several beautiful retrofits to Drake L4B amps using the 8877. Pictures of them are below.
| This is NOT a construction article nor is it a detailed modification. Rather it is presented to illustrate how, with a little work and ingenuity, you can retrofit an amp and achieve commercial results. Please don't ask for specific details on this project. Lawson was nice enough to allow its reproduction here but only on the condition that I ask you not to bombard him with questions about it. All pictures and illustrations of this project are the sole property of Lawson, W4EMF, and no license or permission is granted to use or reproduce them. All pictures and illustrations are used here with the permission of W4EMF. Thanks, Tony W4ZT. |
(click the small pictures to see a larger picture in a new browser window)
Retro #1 with smaller power supply - 1996 |
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Retro #2 with larger power supply |
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Retro #3 with power supply - 2006 |
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