[Elecraft] Re： Re： XV50 cooling

[Johnny Siu]

Hello Eric,

XV144 is basically the same structure as XV50.  I have both XV50 and Xv144.

cheers,

Johnny VR2XMC



----- 郵件原件 ----
寄件人﹕ Eric <gliderboy1955 at yahoo.com>
收件人﹕ "don at w3fpr.com" <don at w3fpr.com>
副本(CC) Johnny Siu <vr2xmc at yahoo.com.hk>; "Elecraft at mailman.qth.net" <Elecraft at mailman.qth.net>
傳送日期﹕ 2010/6/4 (五) 1:46:42 PM
主題： Re: Re： [Elecraft] XV50 cooling

Don, some other considerations:

1). What about the other components inside the XV?  If the power module is happy running at 100C what does that do for everything else in the XV running at 60-70C with no airflow?

2). My ambient temp in the shack during EME is 80F even with the house A/C running due to the tube PA.

3). Does the XV144 run at the same efficiency (waste heat output) as the XV50?

Thanks for your assistance. I look forward to your measurements. 

73

Eric WD6DBM 

Sent from my iPhone

On Jun 3, 2010, at 9:02 PM, Don Wilhelm <don at w3fpr.com> wrote:

Johnny,

Prior to testing, I have reviewed the datasheet for the RA30H0608M module that is used in the XV50.  The power module is specified to operate within spec at 110 degrees C ( 230 deg F).  While that is too hot to touch (in excess of boiling water temperatures), it is well within the device specifications.  SNIP