Rat woes

johnnyseven · Post by **johnnyseven** » Thu Oct 24, 2013 8:04 am

I have a Turbo Rat and a You Dirty Rat and both are on my board at the moment. I've noticed that when my Turbo Rat is off the led is still dimly lit, is this normal?

Also, I was moving pedals around on my board the other day and I think I knocked one of the live 9v jacks against a pedal and ever since my You Dirty Rat has been emitting a high pitched ringing noise (a bit like tinnitus). This ringing noise changes in pitch when I turn the Turbo Rat's distortion knob, leading me to think that the dimly lit led means the pedal isn't totally off when the switch is disengaged.

Can anyone advise what the issues might be a help with solutions?

71Smallbox · Post by **71Smallbox** » Thu Oct 24, 2013 2:34 pm

johnnyseven wrote:I have a Turbo Rat and a You Dirty Rat and both are on my board at the moment. I've noticed that when my Turbo Rat is off the led is still dimly lit, is this normal?

Also, I was moving pedals around on my board the other day and I think I knocked one of the live 9v jacks against a pedal and ever since my You Dirty Rat has been emitting a high pitched ringing noise (a bit like tinnitus). This ringing noise changes in pitch when I turn the Turbo Rat's distortion knob, leading me to think that the dimly lit led means the pedal isn't totally off when the switch is disengaged.

Can anyone advise what the issues might be a help with solutions?

Older Turbo Rats aren't true bypass, I had a RatII do this exact same thing. The way to find out for sure take the battery cover off of the back and look at the switch, if it has 9 connection points, its true bypass, if only 6, it's not true bypass.

johnnyseven · Post by **johnnyseven** » Thu Oct 24, 2013 3:33 pm

I think you might be right on that one, i'll check tonight but i'm pretty sure it doesn't have 9 connection points. Thanks.

Anyone have any suggestions re the YDR noise issue, have I fried one of the components?

71Smallbox · Post by **71Smallbox** » Thu Oct 24, 2013 3:36 pm

johnnyseven wrote:I think you might be right on that one, i'll check tonight but i'm pretty sure it doesn't have 9 connection points. Thanks.

Anyone have any suggestions re the YDR noise issue, have I fried one of the components?

You may have a ground wire loose in that one, open it up and look for a loose wire or a shoddy(cold) solder joint.

Bill Oakley · Post by **Bill Oakley** » Fri Oct 25, 2013 8:53 pm

Just for the record:
Not sure which ones but some Rats used a DPDT (6 lugs) and what we call Millenium bypass now which is also true bypass. I would guess most of the Rats with an LED and DPDT would have this as you can do true bypass without an LED with a DPDT. Point being it doesn't necessarily have to have a 3pdt (9 lug) switch to be true bypass with an LED.

NickS · Post by **NickS** » Fri Oct 25, 2013 9:13 pm

Discussion of Rat true bypass and Millenium (sic) true bypass:
http://www.geofex.com/article_folders/m ... millen.htm

This approach also cured forever the tendency of the early models to latch up or oscillate.

Brandon W · Post by **Brandon W** » Fri Oct 25, 2013 9:23 pm

Bill Oakley wrote:Just for the record:
Not sure which ones but some Rats used a DPDT (6 lugs) and what we call Millenium bypass now which is also true bypass. I would guess most of the Rats with an LED and DPDT would have this as you can do true bypass without an LED with a DPDT. Point being it doesn't necessarily have to have a 3pdt (9 lug) switch to be true bypass with an LED.

I never knew this.

NickS · Post by **NickS** » Fri Oct 25, 2013 10:12 pm

Dimly lit LED might indicate oscillation.

johnnyseven · Post by **johnnyseven** » Sun Oct 27, 2013 11:09 am

What do you mean by oscillation?

NickS · Post by **NickS** » Sun Oct 27, 2013 7:38 pm

Oscillation, in this case, = high pitched ringing noise.

Rat woes

Rat woes

Re: Rat woes