[Elecraft] why mix rf connector types within the product line?

[Edward R Cole]

Jim,

Yes, I think that is the correct description.  I never could remember 
the Scotch number. It is superior to using coax seal and comes off 
with a simple slice of a razor knife.  Scotch-70 is very 
expensive.  Scotch-88 is OK but Scotch-33+ seems more flexible in 
cold temps.  Tywrap idea good.  I used them in general for securing cables.

Thomas&Betts brand "Tywrap" copyrighted name are the only plastic 
ties found to survive -50F temps without breaking.  The cheap brands 
just snap in temps of about zero F.  If running heavy cable runs then 
using tywraps with a metal band is better.  But must be cushioned to 
keep metal from digging into cable insulation.

Those of us that have worked professionally in AK know these details 
and learned there are no shortcuts.

73, Ed - KL7UW

At 12:06 PM 4/28/2013, you wrote:
>Did you perhaps mean Scotch #70 self-fusing silicon rubber tape?  I 
>have used it for years to seal connections, never opened one (after 
>up to 25 years of service) that looked anything other than brand 
>new.  Expensive, but it works like nothing else.  When 
>properly  installed and over-wrapped with either Scotch 88  or 
>Scotch 33+,  connections become next to invulnerable.  Hint: Put a 
>black ty-wrap over the end(s) of the over-wrap tape to keep it from 
>working loose in wind and weather.
>
>
>- Jim, KL7CC
>
>
>On 4/28/2013 11:02 AM, Edward R Cole wrote:
>>Just one more comment on this topic:
>>
>>Ron addressed marine use.  My former job of 15-years was working as 
>>lead electronic tech for an oil spill recovery organization whose 
>>primary region of operation is Cook Inlet in southcentral Alaska 
>>(200 by 30 mile body of salt water).  Electronics installed on 
>>boats ranging from 25-foot to 210-foot provided an excellent 
>>outdoor "laboratory" for testing cables and connections.  Anything 
>>exposed would corrode within three years.  I sealed coax connectors 
>>of all types by using a gray annealing tape from 3M (Scotch 30, I 
>>believe) which was covered with a double wrap of Scotch-33+.