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Title: Tychobrahe Octavia Mod help
Post by: Blenji on October 19, 2006, 08:03:13 PM

Hey,

Id like to build the 'Tychobrahe Octavia' found at http://www.generalguitargadgets.com/index.php?option=content&task=view&id=49&Itemid=88 (http://www.generalguitargadgets.com/index.php?option=content&task=view&id=49&Itemid=88). But i would like to mod it so that it has 2 switches, one for the distortion on/off and one for the octave on/off.

Can anyone help me work out how to go about doing this?

Thanks.

Title: Re: Tychobrahe Octavia Mod help
Post by: petemoore on October 20, 2006, 12:38:37 AM

Bypass the transformer and diodes after C6, before R13 using DPDT in a true bypass type wiring w/jumper for bypass.
or...I'm Not sure what that coil would do [between C6 and ground], but you can test what using an SPST to jumper C6 to R13 sounds like by clipping a jumper between C6>---<R13.

Title: Re: Tychobrahe Octavia Mod help
Post by: MetalGod on October 20, 2006, 04:27:45 PM

to switch the octave on/off you can just use a SPDT between D2's anode and the bottom leg of the transformer's primary.

8)

Title: Re: Tychobrahe Octavia Mod help
Post by: Blenji on October 21, 2006, 08:47:47 AM

D2s anode? Which is the bottom leg of the primary? Will i have to mod the PCB at all?

Im new to all this sorry.

DIYstompboxes.com

DIY Stompboxes => Building your own stompbox => Topic started by: Blenji on October 19, 2006, 08:03:13 PM