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Old 22nd April 2011, 07:59 PM   #131
radio is offline radio  Macedonia
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Question Post 125??

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Originally Posted by MiiB View Post
The schematics is as I see it in post 125...
Hello MiiB!
Where is the post 125?
How do I get it?
Thanks
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Old 22nd April 2011, 08:15 PM   #132
radio is offline radio  Macedonia
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Thumbs up PCB this preamp with ECC88

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Originally Posted by radio View Post
Hello!
Show the Schematic of this preamplifier!
Best regards

Zdravo Mile!
Ako si u mogucnosti daj prikazi PCB za ovo pretpojacalo ili posalji ga na moj i-meil!
Unapred veliko hvala!
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Old 22nd April 2011, 08:20 PM   #133
radio is offline radio  Macedonia
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Wink PCB for Preamplifier

Hello Mile!
Give if you are able to show the PCB for this preamplifier!
Unapred hvala (Thanks you)!
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Old 13th June 2012, 08:28 PM   #134
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Quote:
Originally Posted by apexaudio View Post
This is circuit of Counterpoint SA100.
Apex, this is an interesting circuit.
It doesn't have global negative feedback, unless I'm too tired to see it

Did anyone try it ? If so, how does i sound ?
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Old 22nd June 2012, 02:16 PM   #135
regal is offline regal  United States
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This could be scaled up, dc coupled not a with a tube preamp coupled to a mofset buffer, its a true embedded hybrid. The dc servo is boosted do to the low open loop gain. Switch to a Higher gain tridode or pentode, higher rails, and this has good possibilities:

Click the image to open in full size.
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Old 5th June 2015, 03:20 PM   #136
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Default VX11

Simple Hybrid idea...
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File Type: jpg APEX VX11.JPG (184.1 KB, 227 views)
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Old 5th June 2015, 03:39 PM   #137
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Default VS150

New idea...
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File Type: jpg APEX VS150.JPG (390.2 KB, 221 views)
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Old 5th June 2015, 08:02 PM   #138
ilimzn is offline ilimzn  Croatia
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Quote:
Originally Posted by bra View Post
it is my version off Jeff Macauley's MOSCODE
And how much voltage swing can the tubes produce without distorsion from a 100V supply?
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Old 6th June 2015, 08:57 AM   #139
cjkpkg is offline cjkpkg  United States
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I have built a hybrid amp with a Tubecad Aikido front end married to a MOSFET power stage with BUZ MOSFETS. It is actually one of the best amps I have.

Tricky part is getting the bias to work easily. I ended up using the Pass burning amp bias circuit and it works awesome.
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Old 6th June 2015, 09:06 AM   #140
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Very many transistors, very little tubes.
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