[Amps] Alpha 87A Won't Transmit

Aleksandar Petkovic vk6apk at bigpond.com
Fri Apr 9 07:39:15 EDT 2021


Yes, it is not the correct method but it works very well. Even if it 
doesn't look nice.

I am not guilty of doing it like that but I've recommended it to people 
who have serious challenges doing it the "proper" way

I actually file the four holes with a small round file, to elongate the 
4 holes and form a thinner but larger surface of brass to solder to. The 
solder flows into the lightly pre-tinned braid a lot easier and joins to 
the brass properly.

73, Alek. VK6APK


On 9/04/2021 11:19 pm, Ron W4BIN Youvan wrote:
> Robert W5AJ wrote:
>
>> about decade ago, read about method used at K3LR
>> started doing it LR way
>> Works!
>
>> http://www.k3lr.com/engineering/pl259/
>
>   This method is the wrong method.  As recommend by the ARRL and others,
> It is best to not fan out the shield, but cut it about ¼" past the 
> jacket and tin
> the shield  into copper tube, then screw the connector on to the 
> cable, threaded
> onto the jacket and solder through the FOUR holes from the connector 
> to the
> tinned shield.  A pencil tip flame propane torch can be used, if very 
> careful use
> is involved.
>
>   When I began as a broadcast engineer in 1963 every video cable had a
> PL259 on each end of sections of RG-11/U and dependability was job #1.
>                                                               75Ω


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