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Project Tube and ic amplifier PCB or kits

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L

Luck

Member
Joined 2006
lixinaudio.com
Project Tube and ic amplifier PCB or kits

I have a project using tube 6922EH(OR ECC88)as input buffer,
LM1875 as power output IC..I had finished the engineering working sample. You can get more information in AMP Chip ......
Now i am going to make a update version of the PCB, who is interesting in this project? I think the price of all the materials in the PCB will be controlled under 40$ including the tube,ic,and heating.......
Hope more froends will join in this project....
 

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L

Luck

Member
Joined 2006
lixinaudio.com
about the power supply

About the power supply:

20V~-----0V------20V~ 3A is suggested for LM1875.....(120W)

18V~-----0V------18V~ 3A can also be used in this case.

12V~ 0.5A is for the relay part. (6W)

8V~-----9V~ 1.0A is for the "lamp" inside the tube.(8W---9W)

So, the power of the transformer shall be around 150W in this case.
 
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