[ARC5] An Interesting Failure Mode

[don davis]

I believe that the pulse tube was covered with a net (looks like woven
packing string) and then covered with a mastic of some type like a thick
glue.  These tubes are fairly easy to find, I have a number of different
types in my tube collection.

73 de don ad6pb
>
>
> On 12/12/2016 10:02 PM, J Mcvey via ARC5 wrote:
>> so...what did they do to fix it?
>> Change  the fan
>> change the fan blade
>> reduce the fan voltage
>> install a baffle
>> shield the tube?
>> Scrap the whole system and design a new one?
>>