Green, G9 and slowblow mic pre.

[Flatpicker]

Fotis,
Wow, it looks great! I had completely overlooked this preamp, but thanks to your enthusiasm, I?m certainly going to build one. Thanks for posting all of this.
:thumb:

 

[toffifee]

@Fotis: MANY THANKS! That helped me a lot! :thumb:
Toff

 

[FotisGR]

This is the psu i use. http://www.qsl.net/sv3eao/psu.gif

I think i help you.

I know that some diyers have strong problems to find power trafos and chokes.

I have for sale toroid trafos and toroid chokes for this project and i can build custom made trafos,too at really good price. the trafos and chokes are that in my project's pictures.

cheers
fotis

 

[FotisGR]

You can visit also the sismofyt's webpage for more infos.
at http://www.sismofyt.net

cheers
fotis

 

[Jazzy_Pidjay]

My version of this SlowBlow
codename : Asymptot.

Is a K I L L E R.

Thanks to Sismofyt & Fotis, so much.


pics coming sound!

i biased the heater at 42v from ground
and use additionnal bleeder 22k/10W.

The sound is crazy good, i just can't recognize
the TLM103....
Generaly harsh and boring, it sound wonderful with this pre.
The G7 sound magic too, but very smooth and the sound
seems to be lightly far.

The mine have some differents features

- Selectable input trafos by relay
- Selectable Output, Unbalanced or 1:1 trafo, by relay
- 2k2 / 25w Bleeder, automaticaly off by relay
when power up. Discharging the caps faster
and the B+ dont stay in the cold tubes after power off.

and some like Fotis

- Retarded B+ by timer + relay
- Slow start 12v for heater

 

[Jazzy_Pidjay]

http://img.photobucket.com/albums/v439/jazzy_pi/DSCF0596.jpg
http://img.photobucket.com/albums/v439/jazzy_pi/DSCF0598.jpg
http://img.photobucket.com/albums/v439/jazzy_pi/DSCF0599.jpg
http://img.photobucket.com/albums/v439/jazzy_pi/DSCF0601.jpg
http://img.photobucket.com/albums/v439/jazzy_pi/DSCF0602.jpg


only few wires to connect, switchs, DI, +48v, Main AC... and the schaeffer
frontpanel to order.


sorry for the size, its due to photobucket.. :evil:

 

[laitue5]

Hudge alim à la Jean Hiraga. :wink:

 

[Jazzy_Pidjay]

:thumb:

 

[FotisGR]

Viva Jazzy le hip-hop :thumb:

 

[Jazzy_Pidjay]

:grin:

Viva Sismofyt design also !
and Fotis Ideas !