Speaker relay for Sonance Sonamp 260

[crazy-in-az]

I've been having a problem with channel drop outs on my Sonamp that I've tracked down to a bad relay. Tapping on the relay will temporarily bring the channel back.

I can't seem to find an exact replacement. The relay is a Guardian 1335-2C-24vdc, which is rated at 5A 30vdc/120vac. I can find some rated for 28vdc like this-


https://www.grainger.com/product/1Y...ucid=N:N:PS:Paid:GGL:CSM-2295:4P7A1P:20501231

So I have a couple of questions-

Is the 28vdc rating close enough to the original?

The pins have the same layout as the original, but I don't know if the spacing is the same. Is that sort of thing pretty much standard?

 

[avionic]

Post a photo of the relay and the relays footprint..

 

[w1jim]

First look on the underside for cracked solder joints (most likely).
Then take off the plastic cover and clean the contacts with some fine sandpaper.

 

[crazy-in-az]

First look on the underside for cracked solder joints (most likely).
Then take off the plastic cover and clean the contacts with some fine sandpaper.

I was trying to get the cover off, but it's tight in the amp. I was finally able to get the cover off with a small angled awl. I cleaned it and it's okay for now. I was able to find an original NOS relay on that auction site, so I have a backup just in case.

 

[w1jim]

Those covers can be a challenge to get off, especially when mounted.
The contacts probably had pitting from arcing.
Cleaning the contacts will give you lots of additional life but the gold or silver plating is gone so it won't be just like new - but good enough.