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    Building, troubleshooting and testing of these amplifiers should only be
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Hybrid amp schema?

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Ryssen

Ryssen

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Joined 2003
2x50v DC isn´t it a little to high for class A at 30w?Just thinking.:rolleyes:

If I where to try this one with regular transistors,e.x MJE 21193/94 or
MJ15003/04 are there any changes needed to be made?:)
 

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DoomPixie

Member
Joined 2005
this is what i did.... it still needs a bit of refineing and could probably do with haveing another SS stage added makeing it into a tripple darlington but it is all explained HERE I suggest you have a good read of that.. this is the circuit as it stands now and it is working on the bench, i have yet to refine it and build a final version as i got distracted by a chipamp... but it is a good start...
 

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DoomPixie

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Joined 2005
forgot to say.. the tube section isnt in any of those schematics but it is basically the same the tube section HERE think there are a few slight differences but i cant be sure untill i am home and can look up the schematics i used... either way that tube front end should work fine as i am pretty sure it is basically the same as what i use, if not identicall.....
Owen
 
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bobo1on1

Member
Joined 2003
DoomPixie said:
this is what i did.... it still needs a bit of refineing and could probably do with haveing another SS stage added makeing it into a tripple darlington but it is all explained HERE I suggest you have a good read of that.. this is the circuit as it stands now and it is working on the bench, i have yet to refine it and build a final version as i got distracted by a chipamp... but it is a good start...
Click to expand...


Try using compound pairs instead of darlingtons, because they have better linearity.
 
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DoomPixie

Member
Joined 2005
i may well try what you suggested, i still have quite a few things to try with this amp, i just felt i should post the schematic because it is what the person was asking for and it has been built and tested by me and i know it works.. also am tempted to tre the CSS version of this amp..
Owen
 
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