[Elecraft] Line Out Jack

David Cutter d.cutter at ntlworld.com
Tue Apr 8 14:10:54 EDT 2014


Just to be awkward, my mono and stereo versions all measure 3.48 to 3.49 on 
the barrel but 2.94 to 3.02 on the tip.  Nothing measures 3.18mm ie 1/8inch. 
It's been said before: 1/8inch is an approximation.

David
G3UNA




> On Tue, Apr 8, 2014 at 9:56 AM, Josh Fiden <josh at voodoolab.com> wrote:
>> My recollection is that 3.5mm and 1/8" have always been used
>> interchangeably. I believe (guess) the discrepancy is simply that the 
>> plug
>> originated as 3.5mm and 1/8" is the closest fractional inch (9/64 is
>> unsatisfying).
>
> Wikipedia (which knows everything, right?) seems to concur...
>
> http://en.wikipedia.org/wiki/Phone_connector_(audio)
>
> 73,
>
>    ~iain / N6ML
>
>
>
>
> On Tue, Apr 8, 2014 at 9:56 AM, Josh Fiden <josh at voodoolab.com> wrote:
>> I'm curious about this. If anyone has reference to an actual 1/8" 
>> connector,
>> please forward off list. I don't recall them ever being anything but 
>> 3.5mm.
>> My recollection is that 3.5mm and 1/8" have always been used
>> interchangeably. I believe (guess) the discrepancy is simply that the 
>> plug
>> originated as 3.5mm and 1/8" is the closest fractional inch (9/64 is
>> unsatisfying).
>>
>> Checking specifications from one reputable manufacturer calls out sleeve
>> diameter of 3.5+/-0.05mm for the plug and 3.6mm for the entrance of the
>> jack. As with so many things, I'm sure there's no difficulty finding 
>> poorly
>> designed/manufactured Asian parts that deviate.
>>>> 73,
>> Josh W6XU
>>
>>
>> On 4/7/2014 7:11 PM, Don Wilhelm wrote:
>>>
>>> 3.5mm and 1/8 inch are now the same thing - one place calls them 3.5mm
>>> while others use the 1/8 inch designation for the same thing.
>>> 



More information about the Elecraft mailing list