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Ahmad_tbp 24th April 2006 01:44 PM

need help for Marshall PCB
2 Attachment(s)
hi all
i just converted this marshall schematic ( power amp section only ) into pcb lay out :
i convert it manually on paper , and then draw it with diptrace , i checked it out so much , but it s so easy to make a mistake and dont see it as u know , does any body see any errors on it ?
thanks :)
at sure i ll make it much compact but just wanna check it out this first version of it , then try to change it ,
( i removed the 47k resistor from 16ohms output of transformer cuz my transformer doesn t have the 16 ohm out put )

audiomanics 24th April 2006 03:02 PM

I found one: just in the middle you placed a 470K resistor... in the schematic this one is 470 Ohms.. I assume you place the components of the first tubes on a different board??

Ahmad_tbp 24th April 2006 08:19 PM

thnx , i ll build an ampeg v3 pre amp instead of this marshal ;)

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