Perhaps it’s a commentary on our society. But in this case it may be that our
time is worth more than our gadgets. I guess there was a time when our devices
were more precious than the time it took us to fix them. Nowadays, it’s our
time that’s most precious. Which is why I decided fixing the fan was costing
more than I was willing to pay...
Kim N5OP
"People that make music together cannot be enemies, at least as long as the
music lasts." -- Paul Hindemith
> On Jul 14, 2019, at 4:51 PM, Bernie Skoch via TenTec <tentec@contesting.com>
> wrote:
>
> Thanks, Kim. I’m glad you got it fixed.
>
> You tried! But what a sad commentary on our disposable society.
>
> 73,
> Bernie
>
>> On Jul 14, 2019, at 16:35, Kim Elmore <cw_de_n5op@sbcglobal.net> wrote:
>>
>> Although lots of time has passed, I wanted to let everyone know that I had
>> no luck lubricating the old PA muffin fan on my Orion II. I tried everything
>> everyone suggested and it simply got worse. It squealed quite loudly in the
>> end.
>>
>> These are 60 mm x 25 mm x 60 mm muffin fans and common as dirt. I had three
>> in my one of my parts boxes, so I slapped in an old one and -- Lo! And
>> behold! -- it was quiet. This one turns in the opposite direction, but that
>> doesn't matter. I looked it up and, not only does it have ball bearings, but
>> it moves even more air (27 cfm vs 25 cfm) and uses less current (0.14 A
>> instead of 0.23 A). If yours wakes you up with a surprising squeal, get
>> anything of the stated size with ball bearings and replace the old one! It's
>> not worth your time to keep trying to resurrect the original one.
>>
>> Kim N5OP
>>
>>
>>> On 5/13/2019 2:01 PM, Stuart Rohre wrote:
>>> Kim had a great suggestion, which eases the application of new lubricant to
>>> heat sink fans.?? Tilt the radio such that the central fan bearing is
>>> pointing UP, before you heat up the fan to suck in new lubricant on the
>>> cool down step.
>>>
>>> The Fans at Mouser are so good and reasonably priced, that getting a new
>>> fan overnight is a most time saving step. Match the overall dimensions with
>>> the old fan.?? The new fans have a ball bearing model.
>>>
>>> I have done the fan rejuvenation a number of times but last few timees, I
>>> bouight new fans, and also rejuvenated the old one. That way, I have plenty
>>> of spares for future use.
>>>
>>> Stuart Rohre
>>> K5KVH
>>> _______________________________________________
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>>> TenTec@contesting.com
>>> http://lists.contesting.com/mailman/listinfo/tentec
>>>
>> --
>>
>> Kim Elmore, Ph.D. (Adj. Assoc. Prof., OU School of Meteorology, CCM, PP
>> SEL/MEL/Glider, N5OP, 2nd Class Radiotelegraph, GROL)
>>
>> /"In theory there is no difference between theory and practice. But, in
>> practice, there is." //??? Attributed to many people; it???s so true that it
>> doesn???t matter who said it./
>>
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