Discret balanced line input stage!

[StephenGiles]

Exactly, but one has to look on the bright side of life otherwise all might not be fun, and that surely is what life is about. Now - this is an exellent circuit, thanks very much for posting.
Stephen

 

[Moby]

Ok, bright side, ok..... :wink:
I agree, great and simple circuit, but tekay promissed +/- 24v version, what perfectly fits for me. I searched a lot but didnt find nothig similar....

 

[Tekay]

I'll test it with 30V! I even sent myself an e-mail to remind me down at the workshop tomorrow.
I know I etched a test pcb for +/-24-28 volt version so I guess it's time to build it and test it!

 

[Tekay]

So far it's working fine with +30V, distortion stays the same and and the current draw is the same as with 24V. (20mA)

 

[quadwould]

Any progress? maybe a PCB layout (so we can start etching.. or maybe a Gerber??

it would be nice to have someone making Discreet and non-discreet balancing amps for input and outouts for the forum.

but gerbers will do.

:thumb: :guinness:

 

[Tekay]

Haven't got time for this kind of projects in a long time, too much work!

 

[Viitalahde]

I think I have a layout for this, got to check out the archives. Yes, I must have it since I used it. :green: The layout did have some error on the BD139/BD140 pinout, but it'll be easy to correct. I think it was even in the 2520 footprint..

Wait a day or two.

 

[Pri]

did anyone work this design over, according to bo hansen's advice?