Transistor replacement .... (NAD 514)

[Henrik Koksby Hansen]

Hi.

Concerning news:3F100D5A.F1A6F191@worldnet.att.net.

Would TIP33C and TIP33C replace 2SD669 and 2SB649 transistors ok?



Henrik

 

[Kyle Miller]

Henrik Koksby Hansen <Henrik@K0ksby.dk> wrote in message news:<qaj6nv0f020b98471ssimmildnivb42a4v@4ax.com>...

Hi.

Concerning news:3F100D5A.F1A6F191@worldnet.att.net.

Would TIP33C and TIP33C replace 2SD669 and 2SB649 transistors ok?



Henrik

Depends on the application, but the originals are much faster and more
sensitive than the tip33c's. Not to mention that the 2sb is PNP, while
the rest are NPN and the pinouts may not match. Do you want to pay a
few extra bucks or have a radio that sounds like crap?

 

[Henrik Koksby Hansen]

Depends on the application, but the originals are much faster and more
sensitive than the tip33c's. Not to mention that the 2sb is PNP, while
the rest are NPN and the pinouts may not match.
[...]

The TIP34C should also be PNP.

They are _not_ pin compatible. I know that.

Do you want to pay a
few extra bucks or have a radio that sounds like crap?
[...]

Heh. Guess.

Does anyone know where to find similars to the 2SD669 & 2SB649 ... I
have googled, but can't seem to find anything.


/Henrik

 

[Jacques Carrier]

Try the following Web site: WWW.NTEINC.COM

Click on View Datasheet

 

[Tim Schwartz]

Henrik,
I'm guessing that you are talking about the focus coil drive
transistors that are a common problem in these CD players. (I also guess
that you meant a TIP-33C and a TIP-34C) I'd think that you will have
problems physically fitting the TIP transistors, as the lead spacing
will be wrong, and I'm not sure about the pin out. The actual spec of
these transistors is not that critical, but I would try for a beta of
100 or more.

Regards,
Tim Schwartz
Bristol Electronics

P.S. If you repost, please include the specific transistor locations
that you are trying to replace.

Henrik Koksby Hansen wrote:

Hi.

Concerning news:3F100D5A.F1A6F191@worldnet.att.net.

Would TIP33C and TIP33C replace 2SD669 and 2SB649 transistors ok?

Henrik