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| To: | [email protected] |
|---|---|
| Subject: | LF: Re: Tech questions G3YXM amp+18 divider |
| From: | Alberto di Bene <[email protected]> |
| Date: | Sun, 09 Apr 2006 15:16:19 +0200 |
| Delivered-to: | [email protected] |
| In-reply-to: | <000801c65bc8$6cfdd880$2102000a@ibm> |
| References: | <000801c65bc8$6cfdd880$2102000a@ibm> |
| Reply-to: | [email protected] |
| Sender: | [email protected] |
| User-agent: | Thunderbird 1.5 (Windows/20051201) |
Dick wrote: I am using a large heatsink 12x15x5cm. On this heatsink I mounted a 1.5mm thick copperplate 75x150mm in order to transport heat quick away from the FET's. Maybe it's some 'overkill' , but I just want to set up a thing that can run for hours on full power; just a bit of reserve........... Why don't you use one of those heatsinks with blower meant to be applied on Pentium or Athlon CPUs ?They have a large flat surface, ideal to screw on it a couple of Mosfets, and the blower is designed to remove a large amount of heat from the metal. They can be found for almost nothing at ham fairs, or salvaged from old PCs at the local city dump. 73 Alberto I2PHD |
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