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[Gerard Visser <gvisser AT indiana.edu>]

Dear Yi,
	I think this is probably reasonable. But can you please document here in reply 
the exact and complete partnumbers for the connector we'll use on the hybrids, 
and the connector we'll use on the T-boards?
	The intention has always been that the connectors are fixed to each other by 
fixing screws. It is *not clear* to me that this would even have been possible 
with the "Male and female straight SMT on PCB" style (in attached picture here 
too). I think that was *not* the plan, and the 'mistake' is no mistake.
	But let's please reconfirm here with the exact full partnumbers, and if you 
have drawings for those two exact partnumbers too that will be helpful since the 
Nicomatic website doesn't seem to always have drawings available on all the 
parts. I'm not sure.
        Thanks, sincerely,

                Gerard


p.s. Filling under the connector around the solder joints with a suitable epoxy 
is perhaps good. We have to be sure that the solder joints are good, and are 
completely clean of flux, before doing that. I think so anyway. What sort of 
solder and flux are to be used?


On 11/10/2020 11:19 AM, Yi Yang wrote:
> (I have some issues sending email to the STAR mailing list, so I also added the 
> individual emails.)
>
> Hi Gerard,
>
> The short summary of what we discussed about the connector issue is that we 
> purchased the WRONG connectors. Please see the drawings in the bottom on page 3 
> of the first attachment, Felix pointed out that we should use the middle one 
> "Male and female straight SMT on PCB" instead of the right one "Male SMT and 
> female on cable".
>
> The perfect solution will be to replace the screw parts to "V22 Straight 
> jackpost" (the first item in the table), but it will take too much time. So we 
> proposed to use epoxy to enhance the strength between the connector and 
> hybrid, and this can be done later. What do you think?
>
> Cheers,
> Yi
>
>
>
> +++++++++++++++++++++++++++++++++++++++++++++++++++
> Yi Yang, Associate Professor
> Department of Physics
> National Cheng Kung University
> Tainan, 701 Taiwan
> E-Mail: yiyang AT ncku.edu.tw <mailto:yiyang AT ncku.edu.tw>
> Tel: +886-6-2757575 ext.65237
> Fax: +886-6-2747995
> Group Web: https://urldefense.com/v3/__http://phys.ncku.edu.tw/*yiyang__;fg!!P4SdNyxKAPE!UM5dajKUnkd1FiTaFN7D0De3gzmIVhYFnBvfglNjVuR6ySU0t3QuKxkApvsmt8d0TTU9jUU$ 
> +++++++++++++++++++++++++++++++++++++++++++++++++++

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