PROJECT begins: bass preamp

[zafira1981]

Well I decided to start building the preamp stage of the mesa/boogie bass 400 amp.

schematics:
http://img115.imageshack.us/img115/9294/preampav1.gif

Parts

An externally hosted image should be here but it was not working when we last tested it.

I dont trust on the small caps. The guy at the shop told me that will suport 500v, but... I will try to find some others!! what do you think?

The output stage will be a lm3886 gainclone, maybe 2 or 3 with diferent speakers.

http://img291.imageshack.us/img291/7704/dsc09418hv7.jpg

(4x 150VA 12v transformers to make 2x24v 600VA + 8 MUR840 fast diodes + 30000uF each rail )

Why not a tube output? because I dont have such big output "iron" =(

maybe in the future I will build one with this output tubes 😎

http://img105.imageshack.us/img105/3092/dsc03587vi2.jpg


Any advice for my project is welcome 😀

 

[cpasco]

Power Transformer

What´s the power transformer used in these project?

 

[zafira1981]

Re: Power Transformer

What´s the power transformer used in these project?

Hi!!! I used that transf. because I had it from another project.. maybe I will buy a new one, smaller.

cheers