Yamaha ca-1000 restoration

[Xxxxxxxxxx26]

Hello friends, thanks for your help.
I am restoring a Yamaha CA-1000 and i don't find this datasheet anywhere
I need datasheet of this transistors:

2SA572 W-4.5
2SC1124-2
2SC680 B or C
2SA566 B or C

Very thanks for your help.

 

[avionic]

Welcome to AK. Have you tried datasheetarchive.com ?

 

[avionic]

2SA566 --- obsolete/NLA TO-66
2SC680 is its complement.Also obsolete/NLA TO-66
https://www.datasheetarchive.com/pd...a25747d23d7db58db5502df6da&type=M&term=2SA566

 

[avionic]

Kinda slim pickens
https://www.mouser.com/Semiconducto...r-Transistors-BJT/_/N-ax1sh?P=1ytmoaxZ1z0z63x

Probably could sub in a TO-220.

 

[avionic]

2SA572 -> KSA992FBTA

 

[avionic]

pin out on the 2SC1124 is EBC

 

[Xxxxxxxxxx26]

Welcome to AK. Have you tried datasheetarchive.com ?

I found some information there, but seems be not exactly correct

I need know What really means the clasification W-4.5 and B or C

 

[avionic]

B or C

Hfe rank

W-4.5

perhaps.....
cob 4.5pf ***
W --- Hfe rank ***

https://www.datasheetarchive.com/pd...3531639315718182dec03bc17d&type=P&term=2SA572

*** SWAG

 

[Xxxxxxxxxx26]

Ok
Thanks for your help
If i have Any question, i return

 

[Xxxxxxxxxx26]

Hello friends again
One question
I am changing the electrolytic capacitors of this amp and in the schematics diagram says the value of one of this capacitors:

48uF/16V (M)

What is means (M) ?

Thanks

 

[Oilmaster]

M is tolerance class (+/-20%), which is default for electrolytic capacitors

http://www.robotoid.com/appnotes/electronics-capacitor-markings.html

 

[Xxxxxxxxxx26]

Another question
In the manual service appear one resistance with the value 220K (NL).

What is means (NL) ?

It appears in the image
After the tolerance, that Is 5%, there Is a color blue, .What Is means?

 

[avionic]

, there Is a color blue, .What Is means?

Temperature coefficient -- blue = 10ppm/°C

 

[avionic]

What is means (NL)

LN low noise ie metal film

 

[avionic]

220K (NL).

220KΩ

 

[Xxxxxxxxxx26]

Thanks You very much for your help aviónic and olimaster.

 

[Yamaha5000]

2SA566 --- obsolete/NLA TO-66
2SC680 is its complement.Also obsolete/NLA TO-66
https://www.datasheetarchive.com/pd...a25747d23d7db58db5502df6da&type=M&term=2SA566

Was a conclusion for a substitute discovered?

 

[avionic]

Was a conclusion for a substitute discovered?

I'd look at the MJE15032/33G as replacements

 

[avionic]

https://audiokarma.org/forums/index...dard-3-lead-transistors.843145/#post-12092870

 

[Yamaha5000]

I'd look at the MJE15032/33G as replacements

I was thinking that, although not the same case, guess it doesnt matter since the originals have no heat sink?