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2sc945aq

T

tinkerer973WI

W9WDX Amateur Radio Club Member
Jul 12, 2008
26
0
11
Can someone tell me what type of differences do the different letters designate. 945AQ? 945A? 945LQ?

Are they quality control notes?

I ordered 945AQ's and got 945A's.

I'm replaceing TR-26 in a 8719 Madison, if it's audio grade vs switching grade or something like that, I'll order new ones, if it won't make a difference, I'm good. Just don't know what the differences are...


Thanks ,
Tinkerer
 

There is a difference with these parts, and you are right. But I've never really noticed any difference in the end product. If you find some real significance; then let us know . . .

EDIT:
I think that if the A is merely a switching grade; then it is probably more than acceptable since the audio freq range is actually small compared to a transistor that is spec'd for higher freq capacity. Since that TR is used in an audio circuit, doubtful that it is an issue. Just a thought.
 
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