Sansui relay subs

[kwayde]

Which replacement relay (e.g. Omron) for an AU-9500 ?

See post #2 in this thread:
https://audiokarma.org/forums/index...-upgrade-of-scribby31s-sansui-au-9500.654341/

 

[markkb]

BA-2000 relays

LY2-0-DC24 X1
MY4-02-DC24 X1

See post 6 in this thread

Frame up restoration of a BA-2000

 

[milo63]

661 MY2-02-DC24?

 

[kwayde]

661 MY2-02-DC24?

Yes. It's the same one used in the AU-517. See post #1 in this thread.

https://www.worthpoint.com/worthopedia/relay-sansui-661-771-881-7070-au-417-4886228666

 

[Magnus Back]

On that note I just saw a new series of OMRON relays, MY-GS.
Has some fancy features on individual variants like diodes and latching lever.
It's cheaper than the earlier MY series like MY4-02-DC24 but It doesn't have PC pins but there are sockets like PY14-02. Total cost is about same.

https://www.mouser.com/ProductDetail/Omron-Automation-and-Safety/MY4-GS-R-DC24?qs=iLKYxzqNS76Faumqfk7klA%3D%3D

Not sure this is better but it's an alternative maybe.

 

[chazix]

MY4-GS-R-DC24

I like the 6A contact current rating.

The need for a socket would probably limit some applications. The link for the socket is broken, so can't see how much height it would add, or its footprint.

I trust that Mouser's synopsis description for this part number, saying "12V", is just an error in the description.

 

[mrk229]

PY14-02 Here ya go.

 

[milo63]

AU-4900 MY4-02 24DC?

 

[LBPete]

From the service manual


MY4-02-DC24 should drop right in. It looks like Sansui used either the MY-4 or the RABK.

- Pete

 

[JJIrons69]

Need some help, please - G-5000. Listed as 1150400 on the schematic. This is a 10-pin relay. I have an MY4-02-DC24 that says it equivalent, but it's 14 pins. Do I clip that last row of pins off?

 

[kwayde]

Need some help, please - G-5000. Listed as 1150400 on the schematic. This is a 10-pin relay. I have an MY4-02-DC24 that says it equivalent, but it's 14 pins. Do I clip that last row of pins off?

Yes, clip them off. The last row isn't used.

 

[JJIrons69]

Yes, clip them off. The last row isn't used.

View attachment 3693089

I noticed that the last four pins would've been in the same traces or splitting one had they been used. Thanks for the confirmation! Thanks for your service, also!

 

[Tom B]

Rather than replacing, I always recommend removing the original relay, taking off the cover, remove the spring to lift up the contact arm assembly. Then Clean and polish the individual contacts with a pencil eraser, as well as the stationary contacts at the base of the relay. You can spray some deoxit D100 onto the contacts and leave for 5 minutes before blowing off any residue with an air compressor as you want those contacts fully clean. I prefer this rather than replacing with newer relays as the originals were usually made with gold flashed contacts, whie the newer replacement relays are usually just general purpose relays. The only time I replace is when a contacts is terrible overheated, and pitted