Amazon Molex Kit - UK Vintage Radio Repair and Restoration Discussion Forum

HECTOR63 · 6th Apr 2021, 1:48 pm

Just taken delivery of one of these this morning and very impressive and helps a great deal for my needs on going

Scimitar · 6th Apr 2021, 3:54 pm

Quote:

Originally Posted by HECTOR63

Just taken delivery of one of these this morning and very impressive and helps a great deal for my needs on going

But they are JST, not Molex!

chriswood1900 · 6th Apr 2021, 5:22 pm

Yes I also bought one a couple of months back and agree it is good value, I did have to buy a suitable crimp tool to fit them.

Pamphonica · 6th Apr 2021, 6:14 pm

The key to crimping these tiny connectors is to make sure thet the two arms of the crimp area fold right down in the middle and crush the wire properly. A bit like a rounded "B" in cross section. Just squeezing with pliers leaves a very weak joint.
I laboured for ages trying to get a good crimp on these tiny connectors with pliers and finally gave up and bought the Engineer PA-09 crimper. A seeming over-expensive and simple tool. But it has been perfectly designed and made to do excellent crimps, and works over quite a range of the smaller crimp connectors. A good investment if you are making lots of these crimps.
And I suggest you don't make the mistake I used to make of then soldering the crimped joint "just to make sure". This guarantees that the solder wicks up the wire, making a nice fracture point a little way up from the crimp!
-Jeremy

HECTOR63 · 7th Apr 2021, 12:23 pm

Quote:

Originally Posted by Pamphonica

The key to crimping these tiny connectors is to make sure thet the two arms of the crimp area fold right down in the middle and crush the wire properly. A bit like a rounded "B" in cross section. Just squeezing with pliers leaves a very weak joint.
I laboured for ages trying to get a good crimp on these tiny connectors with pliers and finally gave up and bought the Engineer PA-09 crimper. A seeming over-expensive and simple tool. But it has been perfectly designed and made to do excellent crimps, and works over quite a range of the smaller crimp connectors. A good investment if you are making lots of these crimps.
And I suggest you don't make the mistake I used to make of then soldering the crimped joint "just to make sure". This guarantees that the solder wicks up the wire, making a nice fracture point a little way up from the crimp!
-Jeremy

https://www.amazon.co.uk/ENGINEER-pa.../dp/B002AVVO7K

The price of Precision

HECTOR63 · 7th Apr 2021, 12:24 pm

Quote:

Originally Posted by Scimitar

Quote:

Originally Posted by HECTOR63

Just taken delivery of one of these this morning and very impressive and helps a great deal for my needs on going

But they are JST, not Molex!

Just noted thanks for the heads up

Keith956 · 7th Apr 2021, 12:33 pm

A good guide to crimp connectors here: http://www.mattmillman.com/info/crimpconnectors/

HECTOR63 · 7th Apr 2021, 3:56 pm

Quote:

Originally Posted by Keith956

A good guide to crimp connectors here: http://www.mattmillman.com/info/crimpconnectors/

Yes that's definitely a great guide indeed and shows loads of options, surprising about the not so great write up on the Engineer PA09,but I guess its what works for the person with the job to hand.

merlinmaxwell · 7th Apr 2021, 4:20 pm

40 Quid for a crimp tool, the last Molex one I bought (for work) was £300. I tend to harmonise (silly word for use the same) work and home connectors, I can borrow the tool (and get free connectors too), win win!

HECTOR63 · 8th Apr 2021, 10:14 am

Yes I agree somewhat but I personally have no problem paying the money for good tooling, likewise with crimping terminations for Hi end and esoteric hifi with eye watering costs of cables etc, the terminations have to be spot on every time. But shall still be looking to making a purchase of something that fits the bill and its only small scale hobby things and projects these days. Years ago when we used lots of crimping activities with Car Radio etc installation and auto electrical works some of those were a bit trial and error, but smaller and much more intricate things at this level do require more precision style tooling so long as it does the job properly.

6th Apr 2021, 1:48 pm	#1
HECTOR63 Hexode Join Date: Feb 2017 Location: Bedfordshire, UK. Posts: 250	Amazon Molex Kit Just taken delivery of one of these this morning and very impressive and helps a great deal for my needs on going Attached Thumbnails

6th Apr 2021, 5:22 pm	#3
chriswood1900 Octode Join Date: Jan 2007 Location: Bristol, UK. Posts: 1,085	Re: Amazon Molex Kit Yes I also bought one a couple of months back and agree it is good value, I did have to buy a suitable crimp tool to fit them. __________________ Chris Wood BVWS Member

6th Apr 2021, 6:14 pm	#4
Pamphonica Nonode Join Date: Mar 2008 Location: Virginia Water, Surrey, UK. Posts: 2,088	Re: Amazon Molex Kit The key to crimping these tiny connectors is to make sure thet the two arms of the crimp area fold right down in the middle and crush the wire properly. A bit like a rounded "B" in cross section. Just squeezing with pliers leaves a very weak joint. I laboured for ages trying to get a good crimp on these tiny connectors with pliers and finally gave up and bought the Engineer PA-09 crimper. A seeming over-expensive and simple tool. But it has been perfectly designed and made to do excellent crimps, and works over quite a range of the smaller crimp connectors. A good investment if you are making lots of these crimps. And I suggest you don't make the mistake I used to make of then soldering the crimped joint "just to make sure". This guarantees that the solder wicks up the wire, making a nice fracture point a little way up from the crimp! -Jeremy __________________ Jeremy, G8MLK, BVWTVM Friend, VMARS, BVWS Secretary. www.pamphonic.co.uk

7th Apr 2021, 12:33 pm	#7
Keith956 Hexode Join Date: Jun 2019 Location: Near Thame, Oxfordshire. Posts: 272	Re: Amazon Molex Kit A good guide to crimp connectors here: http://www.mattmillman.com/info/crimpconnectors/

7th Apr 2021, 4:20 pm	#9
merlinmaxwell Dekatron Join Date: Jul 2008 Location: Maidenhead, Berkshire, UK. Posts: 10,481	Re: Amazon Molex Kit 40 Quid for a crimp tool, the last Molex one I bought (for work) was £300. I tend to harmonise (silly word for use the same) work and home connectors, I can borrow the tool (and get free connectors too), win win! __________________ Cats have staff, it's dogs that have owners.

8th Apr 2021, 10:14 am	#10
HECTOR63 Hexode Join Date: Feb 2017 Location: Bedfordshire, UK. Posts: 250	Re: Amazon Molex Kit Yes I agree somewhat but I personally have no problem paying the money for good tooling, likewise with crimping terminations for Hi end and esoteric hifi with eye watering costs of cables etc, the terminations have to be spot on every time. But shall still be looking to making a purchase of something that fits the bill and its only small scale hobby things and projects these days. Years ago when we used lots of crimping activities with Car Radio etc installation and auto electrical works some of those were a bit trial and error, but smaller and much more intricate things at this level do require more precision style tooling so long as it does the job properly.