Removing the Octave circuit from an Octavio

[CluelessPerson]

Hello, i am very inept at electronics and such, but I saw that someone on this website removed the octave on a Octavio by putting a switch on it.

https://www.diystompboxes.com/smfforum/index.php?topic=122906.msg1173675#msg1173675

So for a person like me, what is the simplest way to achieve this, i don't really care for being able to turn it back on again, i just want the octave off and have the fuzz on its own.

[antonis]

Hi and Welcome..

Locate 22μF cap leg connected to transformer primary winding and cut the connection..
Locate Volume pot 3rd lug (the one connected to Ge diodes cathode) and cut the connection..
Connect 22μF leg to Volume pot 3rd leg and voila..!!

[CluelessPerson]

Thanks dude, it works great, i am shocked that i figured it out

[antonis]

i am shocked that i figured it out

No need for shocking..

As long as you're able to trace individual building blocks, it will (almost) be a piece of cake..
(e.g. CT transformer with Ge diodes acts as a full-wave rectifier, meaning that it doubles signal frequency - but double the frequency is just an octave up.. So, you effectively removed that particular block out of the circuit and maintained continuity by connecting preceding and succeeding blocks..)

[CluelessPerson]

So it was working, but then after putting it back together a wire broke off of the main button cap leg and now it doesn't work.
It was a thicker black wire with a second wire (from the output jack) connecting into it. Any ideas?

[antonis]

Though a photo should help a lot, judging from your description it must be Ground wire..

[CluelessPerson]

Sorry for not being very descriptive about this whole thing, i was kinda flustered about it all.  So after i finished the mod, it was working perfectly, so i started to put it all back together.  During this process a wire which was connected to the main switch broke off of the original soldering. Because little to no wire was exposed after this i foolishly tried to shear the covering back. But because this particular wire was somewhat thicker and surrounded by a rubber sleeve i accidentally cut off the entire front part. Which held another wire that was connected to the output jack.  Now i am sorta stuck





This is the connecting point of the black wire and shows another wire attached through similar means as the other originally did.




This is what i am left to work with, the smaller black wire was attached to the bigger wire just like the first picture shows.





This is an overshot of the wires, the smaller black wire is connected to what i think is the output jack (based on when the whole thing still worked)

Thank you for all the kind help you have given me

[antonis]

Below connection make sense:



but what's puzzling me is the RED cable on PCB..

Under the assumption thick Black wire is PCB IN (resulting from White wire is Jack IN and Green & Violet are Circuit & Jack OUT respectively..) can't see the use/destination of that Red wire.. 

So, before you proceed to the above switch wiring suggestion, plz verify RED wire connection (or send a picture..)

P.S.
Jack's DPDT wiring instructions might be helpful..
http://www.muzique.com/schem/dpdt.gif

edit: There also should be a jumper diagonally shorting front lower lug & back upper lug..
(just like in Jack's alternate wiring..)

[CluelessPerson]

here are some pictures, it connects to the battery







and this is a better picture of the switch

the leg you say the black wire should connect to, has small bar connecting it to the leg next to it, as seen in the picture

[antonis]

That said, proceed as upper wiring http://www.muzique.com/schem/dpdt.gif
(your circuit has positive ground..)

[CluelessPerson]

It still doesn't work, but thank you for trying to help me

[antonis]

Let's try once more...!! 








EDIT: Interchange thick & thin black cables (4 & Metalic enclosure)..!!

[willienillie]

The thick wire is shielded, its shield is connected to ground at "TP1" along with battery red.  I'm pretty sure it's the PCB IN wire.  If so, the free end would go the the footswitch, where Antonis indicated.  The loose thin black wire goes to ground somewhere.  Maybe there's a lug on the enclosure, maybe it should go to TP1 also on the PCB, hard to tell without seeing the whole thing.

[antonis]

The loose thin black wire goes to ground somewhere.

I presume it should go to screw nearby the TP1..
(Screw head appears to be soldered once upon a time..)

So, final attempt should be as below: