[Milsurplus] AN/URM-32A

[Bruce Lane]

Hi, Bob & group,

*********** REPLY SEPARATOR  ***********

On 24-Jul-04 at 09:28 Bob Camp wrote:

>Hi
>
>The interesting thing is the URM-32 has a fitting that looks a lot like 
>a tire stem mounted on the chassis. I assume it is either to pressurize 
>the sealed chassis or to dry it out. Pressurized dry air seems to be an 
>unusual thing to have around the shop. Definitely need to take a look 
>at a manual.

	Not unusual at all, actually. A source of clean, filtered/dried and compressed air is incredibly useful for a variety of things. This is why I invested in a compressor a couple of years ago, and did some flexible tubing in the garage in a semi-permanent installation.

	Some of the things I've done with it include operating pneumatic contact-crimping tools (it came in VERY handy when I was building a pair of 40-contact cables), blowing gunk out of equipment, and inflating hand truck tires.

	As for the '32: My understanding is that electronic equipment starts to act a little weird if it's operated above a given altitude. I've not learned why just yet, but those valves were indeed present to pressurize the chassis to a much lower relative altitude.

	Keep the peace(es).


>
>I suspect that it's been thirty years since this box saw a real depot 
>so it's not to surprising that the dry chassis has leaked a bit.
>
>	Thanks!
>
>		Bob Camp
>		KB8TQ
>
>
>
>On Jul 23, 2004, at 11:34 PM, Kenneth G. Gordon wrote:
>
>> Bob Camp wrote:
>>
>>> Third question - There is a magic part of the chassis labeled
>>> "Dehydrated compartment do not unseal". It also has a cute little pink
>>> capsule in a glass tube. Is pink good or is pink bad in terms of a
>>> humidity indicator?
>>
>> Bad. Blue indicates dry. Pink indicates "wet". You can dry the 
>> dessicant
>> out in an oven, however.
>>
>> Ken W7EKB
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-=-=-=-=-=-=-=-=-=-=-=-
Bruce Lane, Owner & Head Hardware Heavy,
Blue Feather Technologies -- http://www.bluefeathertech.com
kyrrin (at) bluefeathertech do/t c=o=m
"If Salvador Dali had owned a computer, would it have been equipped with surreal ports?"