Substitute req for 2sc556

bobcat · 24th September 2006, 08:22 AM

Can any one help i am looking for a general substitute for a 2sc556 transistor from nad amp, unable to locate on the web orin any of my books iknow its npn, all help greatly appreciated uk equivelent would be great, Mant Thanks .
B/C

singa · 24th September 2006, 09:16 AM

Are you refering to 2SC556 To-39 metal can ,microwave transistor? This part is discontinued.
The similar parts as listed in the datasheet are:
2SC559
BSX59
KT602A
2N3866
BFR97

Could it be BC556 PNP? TO-92 plastic

parsecaudio · 24th September 2006, 10:14 AM

Where is located this transistor?
In audio section or in tuner section?
2SC556 is a RF transistor 800 MHz FT.
The substitute showed by singa are correct for RF microwave transistors,but my suspect is also a bad read (BC556?)
Another substitute :
2N3253
2N3725

Bye

MikeB · 24th September 2006, 10:57 AM

I also suspect a bad read, on bc556 is often printed only "c556", easily creating confusion.

Mike

bobcat · 24th September 2006, 01:03 PM

Thanks guys have sorted it yes it was bc556 pnp gp all up and running now anyone know an average quisient current setting for nad 7020e?

parsecaudio · 24th September 2006, 01:29 PM

Hi Bob
There are the alignement procedures for the 7020 receiver

bobcat · 24th September 2006, 03:30 PM

Thank you for your help

B/c

24th September 2006, 08:22 AM	#1
bobcat diyAudio Member Join Date: Jan 2004 Location: devon england	Substitute req for 2sc556 Can any one help i am looking for a general substitute for a 2sc556 transistor from nad amp, unable to locate on the web orin any of my books iknow its npn, all help greatly appreciated uk equivelent would be great, Mant Thanks . B/C

24th September 2006, 10:14 AM	#3
parsecaudio diyAudio Member Join Date: Apr 2004 Location: ventimiglia	Hi bobcat Where is located this transistor? In audio section or in tuner section? 2SC556 is a RF transistor 800 MHz FT. The substitute showed by singa are correct for RF microwave transistors,but my suspect is also a bad read (BC556?) Another substitute : 2N3253 2N3725 Bye

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24th September 2006, 09:16 AM	#2
singa diyAudio Member Join Date: Apr 2004 Location: near	Are you refering to 2SC556 To-39 metal can ,microwave transistor? This part is discontinued. The similar parts as listed in the datasheet are: 2SC559 BSX59 KT602A 2N3866 BFR97 Could it be BC556 PNP? TO-92 plastic

24th September 2006, 10:57 AM	#4
MikeB diyAudio Member Join Date: Apr 2004 Location: Gütersloh	I also suspect a bad read, on bc556 is often printed only "c556", easily creating confusion. Mike

24th September 2006, 01:03 PM	#5
bobcat diyAudio Member Join Date: Jan 2004 Location: devon england	Thanks guys have sorted it yes it was bc556 pnp gp all up and running now anyone know an average quisient current setting for nad 7020e?

24th September 2006, 03:30 PM	#7
bobcat diyAudio Member Join Date: Jan 2004 Location: devon england	Thank you for your help B/c

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