blowtorch + symasym ?

LennyK · 13th November 2009, 06:51 PM

Hi

I think about building another amp. Plan is to use "blwtorch style" pre and add power - buffer. Since I would use only "half" of the circuit, I thought - how about useing "the other half" in a similar way to symasym amp?

Schematic shows the basic idea. Did any of you try something like this before ?

best regards,
L.

stinius · 13th November 2009, 07:31 PM

Hi

You have a funny way to draw your schematics, but I see what you are thinking, anyway it’s not a BT.

Have a look at this design by Scott Wurcer, a nice design that could be used with 2 buffers.

I also think you will find some circuits in the Pass forum that you can use.

LennyK · 08:23 PM

Thanks for reply

I know that is not a BT. BJT in cascode, bias voltages, no degeneration... Well, the schematic is just to show the idea. Details will come later.

I want to use only one buffer (thre is one "out_pre"), but I will look at Scott's design with attention.

13th November 2009, 08:20 PM	#3
LennyK diyAudio Member Join Date: Nov 2002 Location: Gdansk - best part of Poland :)	Thanks for reply I know that is not a BT. BJT in cascode, bias voltages, no degeneration... Well, the schematic is just to show the idea. Details will come later. I want to use only one buffer (thre is one "out_pre"), but I will look at Scott's design with attention. Last edited by LennyK; 13th November 2009 at 08:23 PM.

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13th November 2009, 07:31 PM	#2
stinius diyAudio Member Join Date: Oct 2008	Hi You have a funny way to draw your schematics, but I see what you are thinking, anyway it’s not a BT. Have a look at this design by Scott Wurcer, a nice design that could be used with 2 buffers. I also think you will find some circuits in the Pass forum that you can use.

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