"Peter Bent" <[EMAIL PROTECTED]> made an utterance to the drakelist gang ---------------------------------------------------------------------- Just curious, has anyone actually measured the temps in the cages-- before and after?
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ron Wagner Sent: Monday, December 24, 2007 8:18 PM To: [EMAIL PROTECTED] Subject: Re: [drakelist] Cooling Fan on finals Ron Wagner <[EMAIL PROTECTED]> made an utterance to the drakelist gang ---------------------------------------------------------------------- The way I went about his was a half wave (single diode) and filter cap from the 12VAC filament line. I drive a 24 volt fan drawing air out of the final cage. Turns the fan on as I turn on the rig, shuts down when turned off. Runs slow and quit, but really makes a difference on the temp of the final cage. I attach the fan to the rear of the cage (so the cabinet comes off without problems) with grommets and black nylon wire ties. This arrangement does not seem to damage the cabinet, and does a nice job cooling. As far as stability, as long as you do not blow the warm air in, it should make the rig more stable. The cabinet and associated circuits should stay much more constant in temperature. In a good oscillator design, which Drake has, it is typically temperature change that causes the drift. 73, Ron WD8SBB ---------------------------------------------------------------------- Submissions: [EMAIL PROTECTED] Unsubscribe: [EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost: [EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net ---------------------------------------------------------------------- ---------------------------------------------------------------------- Submissions: [EMAIL PROTECTED] Unsubscribe: [EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost: [EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net ----------------------------------------------------------------------
