On Friday, June 22, 2018 at 10:28:46 AM UTC-4, Phil Hobbs wrote:
On 06/22/2018 09:22 AM, wrote:
On Thursday, June 21, 2018 at 4:31:02 PM UTC-4, Phil Hobbs wrote:
On 06/21/18 16:08, wrote:
I've got a Fluke 189 DMM. The banana jack inputs are getting flaky.
With the probes or input pushed up or down they sometimes loose continuity.
I opened it up and looked at the solder joints... they look fine.
The banana jacks are encased in plastic so it's hard to see exactly.
I tried squeezing them in some, it's maybe a bit better, but no one
wants even a bit of flaky in their test gear. Any ideas? (about how I might
fix it.)

George H.


You might drop $17 for a set of ProbeMaster 8000 series leads

http://probemaster.com/8000-series-test-leads-only/

All gold-plated, soft silicone leads, lots of accessories available.
Gorgeous.

Even if it turns out to be the meter that's broken, you'll be glad to
have the leads for the next one!


No whatever banana I stick in there is intermittent.
(I use a lot of BNC to dual banana plug adapters.. then I can watch
the fast stuff on the 'scope at the same time.)

Ah. Those put a lot of torque on the solder joints, of course.
The solder joints look fine... OK I just retouched them... same deal,
(just as well cause I already spent $30 on the part Jeff linked to. :^)

When I replace it, I'll butcher the old one and see if I can find anything.

George H.

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC
Optics, Electro-optics, Photonics, Analog Electronics

160 North State Road #203
Briarcliff Manor NY 10510

hobbs at electrooptical dot net
http://electrooptical.net