[Collins] Boat Anchor Fans

[Ray V.]

Dave,

Are you saying this "Boatanchor Cooler" fan system creates a total 
vacuum inside the Collins gear? I would think that if the fan is an 
exhaust system, removing air from the Collins gear, then external air 
would have to re-enter the Collins gear to replace what is removed. I 
would think that, unless the COllins gear is fully enclosed within a 
filtering system, then whatever air re-enters could bring with it the 
dust, etc. How does the "Boatanchor Cooling" system filter the incoming 
air to replace the exhausted air?

I use the exhaust method as well, a simple $3.00 115vac muffin fan 
sitting on top of my KWM-2 and KWM-2A over the HV section drawing air up 
and out, with little rubber bumper feet for protection of the case 
surface. This keeps the rig totally cool but of course I do keep an eye 
on the insides for dust buildup etc.

73, Ray  W2EC

David Knepper wrote:

> The fans that are part of the "Boatanchor Cooler" system are exhaust fans
> that take warm air from inside the Collins and exhaust it outside the unit.
> No dirt, etc. can get inside the Collins as a result of the fan.
> 
> Jose, you need to turn your fan around!
> 
> David Knepper - W3ST
> Secretary to the Collins Radio Association (CRA)
> Publisher of the Collins Journal
> www.collinsra.com
> CRA station call - W3CRA
> ----- Original Message -----
> From: "Jose Vicente" <py2auc@terra.com.br>
> To: <collins@mailman.qth.net>
> Sent: Thursday, April 17, 2003 1:49 PM
> Subject: Re: [Collins] Boat Anchor Fans
> 
> 
> 
>>WARNING:
>>
>>I did my own fan for my Collins KWM-2, it worked great, BUT soon
>>the KWM-2  was clogged with dust,  any fan need a filter to prevent this.
>>Be sure you have one.
>>
>>73, Jose   PY2AUC
>>
>>
>>At 01:14 AM 4/17/03 -0400, you wrote:
>>
>>>I > received a set of fans from K4ZRD a couple of weeks ago and set them
>>>up on
>>>
>>>>my 32S-3, 30L-1 and a KWM2A.  They worked great and appear to drop the
>>>>temperature quite a bit.  The installation was simple and the fans sit
>>>>
> on
> 
>>>>top of the equipment so you do not have to modify anything to use
>>>>
> them.
> 
>>>>Carl did a great job building a small good looking power supply for
>>>>
> the
> 
>>>>fans.  Take a look at his ad in the next Collins Journal or contact
>>>>
> him
> 
>>>>direct.   I plan to get another set for my other old time tube
>>>>
> equipment.
> 
>>>>No, he did not pay me to post this.  I was just very impressed with
>>>>
> the
> 
>>>>workman ship and the easy installation.
>>>>73s  Steve WB6KWL
>>>>
>>Sponsored by the Collins Radio Association
>>http://www.collinsra.com
>>
> 
> Sponsored by the Collins Radio Association
> http://www.collinsra.com
> 
>