Jerry, There are holes in the top cover that are "supposed" to be positioned above the attenuator resistors, and the new transverters have holes on the bottom on either side of the power module. I am looking at a rather new XV50 right now that has come in to me for repair. The builder did not position the top cover holes over the attenuator resistors, but the holes are in the cover. If you are driving the transverter from the low power outputs, the attenuator resistors are not used, so that source of heat is a no-op, but the resistors will heat up if higher power is used to drive the transverter.
I do not believe additional ventilation holes are needed in most cases. If air flow below the transverter is available (do not operate it without the feet), the cooling is adequate. It seems to me that some operators get concerned with any heat generation, but in reality, if it is cool enough you can place your hand on it for more than 30 seconds, it is not hot enough for concern. Earlier transverters did not have the holes in the bottom panel, and some very early ones did not have the vent holes in the top cover. Yes, these may need additional vent holes, especially over the attenuator resistors. 73, Don W3FPR n0jrn wrote: > OK gang: > > I've seen a number of posts in the archive about drilling holes in the > panels to cool a transverter. > > None of those posts are very specific about where your drilling the holes. > > Can some of you who have done this, tell me where you did that ??? > > OR does Elecraft make panels available that are pre-drilled ?? > ( I don't see then in the products list ) > > Just curious ! > > 73 Jerry N0JRN > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
