On 2011-11-30, at 3:13 PM, Paul Gerhardt wrote: > The fan test is interesting I have thought about putting a fan > on but never have. If I do it would be nice to have a nice quiet fan. > Is there an advantage to a DC fan? It seems a AC fan might be easier > to wire up?
Hi Paul, I used whatever it was that I happened to have on hand at the time, specifically, a small 12 VDC cooling fan that I think was extricated from a junked desk top computer... I power it with a wall wart DC power supply, and it's really unobtrusive in terms of noise. Mine is simply bolted on the top half of the T-4X enclosure, directly above the "cage" housing the final PA tubes. Mine blows the hot air OUT of the T-4X, rather than blowing outside cooling air into it. For the amount of work & $$$ expended in incorporating it---and keeping in mind the benefits by doing so---I think that the addition of a cooling fan is a "...must have", rather than a "...nice to have" feature... ~73~ de Eddy VE3CUI - VE3XZ
_______________________________________________ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
