M Minguta Well-known member Joined Jun 5, 2004 Messages 172 Location Thailand Jan 30, 2009 #1 just have time to do this project. On schemetic use 135 and 136 but on parlist use 139 and 140. So what is the best ? Thank you..
just have time to do this project. On schemetic use 135 and 136 but on parlist use 139 and 140. So what is the best ? Thank you..
3nity Well-known member Joined Dec 30, 2005 Messages 3,637 Location MTL, CANADA Jan 30, 2009 #2 both are good!
Luny Tune Well-known member Joined Sep 11, 2005 Messages 414 Location Elsinore, Denmark Jan 30, 2009 #3 Both. It doesn't matter. They're interchangable...
S skipwave Well-known member Joined Jul 8, 2005 Messages 1,416 Location Los Angeles Jan 30, 2009 #4 They share a datasheet: http://www.fairchildsemi.com/ds/BD/BD139.pdf Only differences are voltage ranges, and those are listed out in the datasheet. I built one of these Gyraf HP amps awhile ago with 139/140 pairs.
They share a datasheet: http://www.fairchildsemi.com/ds/BD/BD139.pdf Only differences are voltage ranges, and those are listed out in the datasheet. I built one of these Gyraf HP amps awhile ago with 139/140 pairs.
M Minguta Well-known member Joined Jun 5, 2004 Messages 172 Location Thailand Jan 30, 2009 #5 Thank you so much..