Minguta

Gyraf HP amp need help, please
« on: January 30, 2009, 09:07:02 AM »
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

Re: Gyraf HP amp need help, please
« Reply #1 on: January 30, 2009, 09:11:02 AM »
both are good!
Life is a path, death the destination.

Luny Tune

Re: Gyraf HP amp need help, please
« Reply #2 on: January 30, 2009, 09:11:40 AM »
Both. It doesn't matter. They're interchangable...

skipwave

Re: Gyraf HP amp need help, please
« Reply #3 on: January 30, 2009, 01:26:05 PM »
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.
Quote from: PRR
Now, maybe you don't, or shouldn't, grab the ribbon for far-harpsichord, nor the hot condenser for snare-kissing... yet often we do.

Minguta

Re: Gyraf HP amp need help, please
« Reply #4 on: January 30, 2009, 04:47:50 PM »
Thank you so much..  ;) ;) ;)


 

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