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Re: 465 Electrolytic Capacitor Replacement


 

In case you haven't already come across these things:

Here's the adapters Paul is referring to:

eBay listing number "273254508468".



Seller is:



Or search for "Capacitor Adapter 15.5mm triangle".

Worth reading:

/g/TekScopes/files/Tek%20465%20Power%20supply%20Capacitor%20Replacement%20Guide%20-from%20web-/_Tek%20465%20Power%20Supply%20Capacitor%20Replacement%20Guide.pdf

Note that's from this groups files section. Search for "465 Power Supply Capacitor" to find it and others.

A message on this board where I describe the caps I selected to order from Mouser: /g/TekScopes/message/176235

If you go back to the beginning of that thread there's a link to a photo album showing a problem I encountered: /g/TekScopes/album?id=258720

The little trace circled in red in one picture shows the little jumper trace on the backside of A9 coming from C1512. It was the trace via from the front side to the back side that pulled out with the cap body when removing it. It didn't so much as pull out as disintegrate in tiny pieces that I didn't realize where there. I didn't find the problem until it was all reassembled and this little route wasn't reconnected. The solder wouldn't flow from the front to rear through the via without the trace material there. It was a bear to get fixed. Cautionary tail: continuity check all vias before reassembly. Repair damaged ones with copper tape. Available in mass quantities on Amazon.

Good luck and enjoy! It's very satisfying to recover a scope that's in good physical condition.

Dave

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