Author Topic: Agilent 53181A  (Read 196 times)

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Offline BFX

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Agilent 53181A
« on: December 07, 2018, 10:35:07 am »
Hello together,
I bought this counter as broken. Luckily when it arrived it took me 15minutes to repair  :-+ (broken PCB see photos)

What's the problem  >:D
I would like to buy 3Ghz options and there are 3 type on eBay actually.
The old one which is known for a long time

and two new

Do you have some experience with those two?
I saw there is also 5GHz/12.4GHz  options for this counter and from the pictures I see this Chinese  one is able to go to minimum 4.2GHz(from picture).

What do you think ...which one? 
« Last Edit: December 07, 2018, 05:15:02 pm by BFX »

Offline coromonadalix

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Re: Agilent 53181A
« Reply #1 on: December 07, 2018, 10:54:53 pm »
nice repair, but i would have done it slightly different,  the small pcb trace may or will fail eventually due to the bnc stress on the front panel,   hot glue wil never be strong enough to prevent that mechanical stress, i would have put an kinda loose wire up to the smt capacitor  if the pcb want to separate again ???

Or maybe use some kind of bracket maintained by the frame nearby ???  not sure if thoses bnc square casing was solderable ???
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Offline JKKDev

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Re: Agilent 53181A
« Reply #2 on: December 07, 2018, 11:37:10 pm »
You could also use some epoxy and some fiberglass mesh to reinforce and reconnect the small chunk to the main part. You should probably rough up the surface where the epoxy will be contacting the pcb first. I'd also use a flexible electrical connection (aka a wire :P) as solder is somewhat fragile when it comes to mechanical stresses. Just a suggestion :)

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