Re: [Drakelist] Fan for T-4XC
There never was an official fan. I can remember using a 120V muffin fan, slowed down with a huge, honkin' wire-wound resistor, the first time I used a fan over the finals 25 years ago. Today, we've got a plethora of 12VDC fans - some with thermistor control like the one I got at a hamfest for $4. You can run these off a wall wart or put a little half-wave rectified supply inside the transmitter or receiver - off the filament supply. The 12V fans typically draw about 250 mA. Fans over the receiver transformer also help a lot at keeping heat down! 73, & Enjoy Those Drakes but be cool... Steve Wedge, W1ES/4 Live free or die: Death is not the worst of evils. John Stark. All my computers have my signature with various pearls of wisdom appended thereto. -- From: "Adrian P. van Bloois" Sent: Wednesday, January 11, 2012 3:48 PM To: Subject: [Drakelist] Fan for T-4XC Hi, I never saw a fan as an accessory for the T-4XC. Is there any offical one? If not, what what you recommend? Size, diamater, where to put it??? TNX 73 -- Adrin P. van Bloois Antonlaan 104 email: adr...@pa0rda.nl 3701 VG Zeist voice: +31-(0)-30-6912741 The Netherlands fax: NONE 52 05'15.77"N 5 4'44.56"E QTH-locater JO 22 OC The whole point of cooking is to get as much flavour out of the ingredients as possible. -- Delia Smith -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] Fan for T-4XC
Adrian - You don't need a lot of air. Just a 'gentle breeze' that can be totally silent. Computer fans are cheap and quiet. Run a noisy one at a lower voltage/ Easiest to sit on top of the cabinet over the PA, _BLOWING UP_. Rubber or foam 'feet' just to keep it in place and prevent vibration noises. If you don't have room above the transmitter, the fan works just as well mounted on the rear wall of the PA cage, _BLOWING OUT_. 73, Garey - K4OAH Glen Allen, VA Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line and TR-4/C Service Supplement CDs Eugene Balinski wrote: 4" "muffin fan" located on top of the case right above the finals cage, pulling air UP and OUT. Since you are in Europe, 220VAC fans are the norm and might be too loud. Try to find a 24VDC fan and run it on 12vdc. Quietly moves a lot of air. 73 K1NR On Wed, 11 Jan 2012 21:48:40 +0100 "Adrian P. van Bloois" wrote: Hi, I never saw a fan as an accessory for the T-4XC. Is there any offical one? If not, what what you recommend? Size, diamater, where to put it??? ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] Fan for T-4XC
4" "muffin fan" located on top of the case right above the finals cage, pulling air UP and OUT. Since you are in Europe, 220VAC fans are the norm and might be too loud. Try to find a 24VDC fan and run it on 12vdc. Quietly moves a lot of air. 73 K1NR On Wed, 11 Jan 2012 21:48:40 +0100 "Adrian P. van Bloois" wrote: > Hi, > I never saw a fan as an accessory for the T-4XC. Is there > any offical > one? If not, what what you recommend? Size, diamater, > where to put it??? > > TNX > > 73 > > > > -- > Adrin P. van Bloois > Antonlaan 104 email: adr...@pa0rda.nl > 3701 VG Zeist voice: +31-(0)-30-6912741 > The Netherlands fax:NONE > > 52 05'15.77"N 5 4'44.56"E > QTH-locaterJO 22 OC > > The whole point of cooking is to get as much flavour out > of the > ingredients as possible. > -- Delia Smith > > > -- > This message has been scanned for viruses and > dangerous content by MailScanner, and is > believed to be clean. > > > ___ > Drakelist mailing list > Drakelist@zerobeat.net > http://mailman.zerobeat.net/mailman/listinfo/drakelist - Web mail provided by NuNet, Inc. The Premier National provider. http://www.nni.com/ ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] Fan for T-4XC
Hi Adrian, My recommendation would be simply to mount whatever you might have right available atop the rig, so that it's blowing the hot air generated in the final PA cage OUTWARD... I did some tests awhile back & shared the results with this Reflector on how very beneficial the addition of a fan in this way can reduce the warm-up "drift" frequency excursion of a T-4X like mine. VERY WORTHWHILE addition for the minimal strain it might take to do so, IMHO... ~73~ de Eddy VE3CUI - VE3XZ * On 2012-01-11, at 3:48 PM, Adrian P. van Bloois wrote: > Hi, > I never saw a fan as an accessory for the T-4XC. Is there any offical > one? If not, what what you recommend? Size, diamater, where to put it??? > ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
[Drakelist] Fan for T-4XC
Hi, I never saw a fan as an accessory for the T-4XC. Is there any offical one? If not, what what you recommend? Size, diamater, where to put it??? TNX 73 -- Adrin P. van Bloois Antonlaan 104 email: adr...@pa0rda.nl 3701 VG Zeist voice: +31-(0)-30-6912741 The Netherlands fax:NONE 52 05'15.77"N 5 4'44.56"E QTH-locater JO 22 OC The whole point of cooking is to get as much flavour out of the ingredients as possible. -- Delia Smith -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
