Bogner Uberschall

[caspercody]

I found a hand drawn schematic of the pre amp of a Uberschall. I took the Eagle files from Gaussmarkov for the Dr Boogey and converted it to the Uberschall. So I have a schmatic, and pcb for the Uberschall pre amp using Jfets.

[caspercody]

The limk did not work. Please try to copy and paste web link.

http://www.aronnelson.com/gallery/main.php?g2_view=core.DownloadItem&g2_itemId=43442&g2_GALLERYSID=6c70996484ab1af5dbae711cc44b1251

[caspercody]

I guess just click on the link. I am not to familiar with attaching on this forum.

So please look this over and give us your thoughts on this schematic. Does it look like it would work well?

[anchovie]

I think it would work as a high-gain distortion box - how similar it would sound to an Uberschall I can't tell. IIRC, the Presence control in the amp is a fancy thing involving inductors and is quite key to the voicing.

[caspercody]

The presence control (on my schematic) is left over from the Dr Boogey schematic. I left it in there, and was not on the Uberschall schematic I was coping.