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sansui g5700 transistors

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dnight

New Member
Hi,
I bought a sansui g5700, and its previous owner had the bad idea of cut the amplification card in half and putting a new one.
In order to restore it, I bought the original card from ebay (f2980) but to change the card, the previous owner changed the original transistors.
What transistors I can use in this case?
Thank you.
 
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dnight said:
Hello,
I apologize for asking many questions
Which of these transistors is the most adequate and/or has the best quality?
http://www.ebay.com/sch/i.html?_odk...l1313.TR0.TRC0.X2SA1105&_nkw=2SA1105&_sacat=0
http://www.ebay.com/sch/i.html?_odk...l1313.TR0.TRC0.X2SC2580&_nkw=2SC2580&_sacat=0
Do you recommend a store to buy them?
Thanks,
Santiago.
Click to expand...

http://www.mouser.com/ProductDetail/ON-Semiconductor/NJW0281G/?qs=sGAEpiMZZMvDZmJiykJJb1UcqoMm03GD
http://www.mouser.com/ProductDetail/ON-Semiconductor/NJW0302G/?qs=sGAEpiMZZMvDZmJiykJJbyP7gljZP5UI

I don't buy transistors on EBAY. I buy from reputable dealers.To easy to get screwed over with counterfeit parts on EBAY.
 
Hello,
Can you recommend a distributor for the f2980 board? I bought it on ebay, But because of the risk that is false will request a refund and buy it at another store
Thanks,
Santiago.
avionic said:
http://www.mouser.com/ProductDetail/ON-Semiconductor/NJW0281G/?qs=sGAEpiMZZMvDZmJiykJJb1UcqoMm03GD
http://www.mouser.com/ProductDetail/ON-Semiconductor/NJW0302G/?qs=sGAEpiMZZMvDZmJiykJJbyP7gljZP5UI

I don't buy transistors on EBAY. I buy from reputable dealers.To easy to get screwed over with counterfeit parts on EBAY.
Click to expand...
 
dnight said:
Hello,
Can you recommend a distributor for the f2980 board? I bought it on ebay, But because of the risk that is false will request a refund and buy it at another store
Thanks,
Santiago.
Click to expand...

There is no distributor for the F2980 board. The one you bought off the bay is probably genuine, I can't imagine anyone counterfeiting that, there is no market for it.
The board would have been long out of production even in the '90s, you were actually lucky to find one at all......

We are referring to buying individual semiconductors off eBay, because there is a market for obsolete transistors like the Sankens that were in your Sansui there are @#$holes that make fake ones for unsuspecting people who don't know any better.....
 
Last edited:
kevzep said:
There is no distributor for the F2980 board. The one you bought off the bay is probably genuine, I can't imagine anyone counterfeiting that, there is no market for it.
The board would have been long out of production even in the '90s, you were actually lucky to find one at all......

We are referring to buying individual semiconductors off eBay, because there is a market for obsolete transistors like the Sankens that were in your Sansui there are @#$holes that make fake ones for unsuspecting people who don't know any better.....
Click to expand...
Hello,
Thanks for the help.
Sorry, another question: how I can repair the volume knob? is not stable in the potentiometer, moves to all sides
Thanks,
Santiago.
 
If you pull the knob and the shaft is split, very very carefully slip a small screwdriver in the slit and pry them apart. Be careful not to break one side off.

If it is D shaped, put some paper in the knob hole and slide it on.

Rob
 
Robisme said:
If you pull the knob and the shaft is split, very very carefully slip a small screwdriver in the slit and pry them apart. Be careful not to break one side off.

If it is D shaped, put some paper in the knob hole and slide it on.

Rob
Click to expand...
Hello,
I managed to stabilize the knob in the potentiometer, putting a little clip on it,because the plastic is kind a wear down. Any other advice? or should I leave it
as it is. Thanks for your help.
Santiago.
 
Hello,
I apologize for making so many questions in this post, but mouser wants to charge me $100 off shipping for the transistors to address on my importer in the United States. This cost is normal? Or should I call it. Any suggestions on the volume knob? Thanks for the help.
 
dnight said:
Hello,
I apologize for making so many questions in this post, but mouser wants to charge me $100 off shipping for the transistors to address on my importer in the United States. This cost is normal? Or should I call it. Any suggestions on the volume knob? Thanks for the help.
Click to expand...

Where are you trying to ship to ?
 
Do not pay $100 shipping. Find transistors elsewhere, there will be a source for electronics in your local region. Google it. :)
 
Hello,
The error was in the person who imports the parts from the United States, which was selecting a type of emergency dispatch. by changing the type
of shipping to ground, the cost is $8. Thank you for everything, I hope the transistors and the card to begin the restoration of the G5700.
Greetings and again thank you for the information.
 
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