Re: [ATM] Forced Ventilation

[Ken Lowther <hermit@outofoptions.org>]

Quoting Dan Wray <dwray@wideopenwest.com>:

> Hello group'
>
> I too am using a 12.5 f6 Newtonian with a closed tube.  My fan is a two
> speed one mounted on a rubber diaphragm that pulls down the tube.  I run it
> on high speed for quicker initial cooling which may cause some vibration.  I
> see no bad effects running it on slow speed for viewing.  I have been very
> satisfied with this arrangement.

Rubber diaphragm?  Hmm.. Interesting.  Like a stretched piece of inner tube
rubber with a whole cut out?

Ken

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