|Zarcon Dee Grissom's Idea Page|
|It has been my experience that the last thing considered by product manufacturers if not ignored, is how well there products will keep cool when put into an industrial environment under 24/7 load. As convenient as the 8-pin dip may be in compact designs, there is no way to keep it cool enough to survive prolonged periods of abuse. To say nothing of the effects of thermal noise on a device operating near it's maximum operating temperature.|
The TO-220 package is a much better choice, as it can be bolted to a massive heat sink with a copper thermal spreader, like the finals in some RF amplifiers [Example 2M-amplifier left].
|I originally wanted to get a project box similar to the Mirage B1016G amplifier [Consept Art left], with face plates I could drill My own holes in (Without preexisting holes). Finding one is similar to locating a Harddrive/floppydrive bay project box (1.0in x 4.0in x depth), Not to be found any where. I settled with the Hammond 1455T2202BK [PDF 169,841 bytes] enclosure for my build, with the internal layout below.|
|All the boards are to be mounted to a single copper sheet with copper washers as standoffs. This should reduce ambient RFI effects, and serve as a heat spreader to conduct heat form all the boards directly to the chassis.|
|Home > Ideas > HPA17r16 Intro.|
HPA17r16 Operating Environment.
HPA17r16 RFI filters.
The Main Amplifier Board.
HPA17r16 Vmon & Sources.
HPA17r16 Tests & Afterthoughts.
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