motorola 2n3055
- Thread starter iprovlek
- Start date
Help Support GroupDIY Audio Forum:
What exactly do you mean by real? How are you using them that you expect to matter?
it says 2n3055... The logo and date code appear authentic... (1988 IIRC was just before, or around the time Motorola sold their mexican to-3 operation).
There may be enough demand for "real" old 3055 for the pukes to counterfeit them.
JR
it says 2n3055... The logo and date code appear authentic... (1988 IIRC was just before, or around the time Motorola sold their mexican to-3 operation).
There may be enough demand for "real" old 3055 for the pukes to counterfeit them.
JR
iprovlek
Well-known member
Thanks John Roberts!
Ill be use for EZ1290!
I found some info on Gearslutz about fake 2n3055!
So i ask for help!
Ill be use for EZ1290!
I found some info on Gearslutz about fake 2n3055!
So i ask for help!
kato
Well-known member
PRR says you can apply a voltage and see how they hold up 
I would just go ahead and assume they're fake.
http://www.groupdiy.com/index.php?topic=42602.0
I would just go ahead and assume they're fake.
http://www.groupdiy.com/index.php?topic=42602.0
Fake, is a bit strong... Most manufacturers consider it a good thing to substitute newer more modern parts in place of older, slower, lower performance parts.
This has been well discussed in that other thread and elsewhere... better parts do not always work better if the old design can not handle modern gain-bandwidht or whatever else changed.
The proper direction would be to retire the legacy 3055 number, but that will never happen as long as people still want to buy them... I even recall mosfets branded with variants of 3055 to get the name recognition as a BSH part. (brick _ house). The early 3055 was slow and hard to kill.
JR
This has been well discussed in that other thread and elsewhere... better parts do not always work better if the old design can not handle modern gain-bandwidht or whatever else changed.
The proper direction would be to retire the legacy 3055 number, but that will never happen as long as people still want to buy them... I even recall mosfets branded with variants of 3055 to get the name recognition as a BSH part. (brick _ house). The early 3055 was slow and hard to kill.
JR
