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-   -   Power mosfet DIY topologies of tube ampli Single-ended (http://www.diyaudio.com/forums/solid-state/202167-power-mosfet-diy-topologies-tube-ampli-single-ended.html)

amberaudio 9th December 2011 11:32 AM

Power mosfet DIY topologies of tube ampli Single-ended
 
1 Attachment(s)
hi all
Im live in viet nam,I want to conjugate gently design acoustical circuit owing to me.

AndrewT 9th December 2011 11:43 AM

Q4 collector to GND?
Would it change performance if this collector were to -V?

ontoaba 11th December 2011 08:57 AM

Hi, I live in indonesia.
With that choke, half DC voltage will dissipated to hot 4r7 resistor. You could use boost converter to supply V+ , instead of dissipate it with 4r7 resistor.

amberaudio 12th December 2011 01:35 AM

2 Attachment(s)
Quote:

Originally Posted by ontoaba (Post 2815284)
Hi, I live in indonesia.
With that choke, half DC voltage will dissipated to hot 4r7 resistor. You could use boost converter to supply V+ , instead of dissipate it with 4r7 resistor.

Hi my friend,
thank you for wiewing, you may notice 4r7 is actually 15w6ohm8. I will post demo kit now.

supply V+ 24 and V-24.

amberaudio 12th December 2011 02:05 AM

2 Attachment(s)
choke and corner DIY of me.

ontoaba 12th December 2011 06:05 AM

Choke is big. Nice choke.
Thanks for sharing.

amberaudio 12th December 2011 09:32 AM

Quote:

Originally Posted by AndrewT (Post 2812943)
Q4 collector to GND?
Would it change performance if this collector were to -V?

Hi my friend
you can see power supply is +24 and -24, Q4 collector to GND this ok.

amberaudio 12th December 2011 09:34 AM

Quote:

Originally Posted by ontoaba (Post 2816576)
Choke is big. Nice choke.
Thanks for sharing.

thank you so much
make choke and OPT is my job, 30 year and 1 job


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