Catalinbread - Naga Viper

jwpartain1 · Post by **jwpartain1** » 14 Sep 2011, 13:46

Hey! Just got this yesterday. It's a great sounding Range-master derivative, with a lot of control over the sound. More of a dirty boost with a "fullness" control of sorts (RANGE) than a treble booster, although those sounds are in there. The nasty stuff on the back of the pedal is not Catalinbread's doing, it's my failed attempt at desoldering that jack there. When I got the pedal, it was a clean PCB

The schematic is hand-drawn, and it looks kind of funny at the input, so if somebody would like to redraw, go right ahead

The one value I'm not sure of is the little blue cap circle in the last pic (blurry pic).

-Justin

grrrunge · Post by **grrrunge** » 14 Sep 2011, 13:53

jwpartain1 wrote:The nasty stuff on the back of the pedal is not Catalinbread's doing, it's my failed attempt at desoldering that jack there. When I got the pedal, it was a clean PCB

That should be fixable with some deflux or lighter fluid and a toothbrush

jwpartain1 wrote:

A clear pic or a description of what's printed on the cap would help alot, if you'd like some of us to identify the last part value there

Nice work otherwise!

theblackman · Post by **theblackman** » 14 Sep 2011, 13:55

lyrics from sweet leaf by black sabbath on the pcb there haha. looks very well made too..

culturejam · Post by **culturejam** » 14 Sep 2011, 14:01

I edited the OP to include the photos as attachments.

jwpartain1 · Post by **jwpartain1** » 14 Sep 2011, 14:05

Thanks culturejam. There are no markings on the blue cap, that's why I haven't got it. BTW I figured that the brown caps were labeled in micro Farads, they used labeling like 683K.

culturejam · Post by **culturejam** » 14 Sep 2011, 14:11

683K = 68n 10%

http://www.electronics2000.co.uk/calc/c ... ulator.php

jwpartain1 · Post by **jwpartain1** » 14 Sep 2011, 14:15

Cool, then the schem is wrong.

Ignore values 103 micro F and 683 micro F. Use culturejam's correct method of labeling them

Thanks!

Didi&Stulle · Post by **Didi&Stulle** » 14 Sep 2011, 14:17

That little blue capacitor might very well be a 47pf "smoothing" cap as it can be found as optional cap in ROG's Whisker Biscuit. It reduces the amount of treble for a a more "velvet-like" sound as they (ROG) say.

culturejam · Post by **culturejam** » 14 Sep 2011, 15:13

That blue cap is most likely < 1n, based on it's position in the circuit.

dcountry13 · Post by **dcountry13** » 14 Sep 2011, 17:57

Very interesting. I am wondering about the empty Axial Electro Caps slots.

coldcraft · Post by **coldcraft** » 14 Sep 2011, 19:17

as drawn, the range pot is shorted by the 2 connections going to the input capacitor.

jwpartain1 · Post by **jwpartain1** » 15 Sep 2011, 01:27

Sorry guys, the RANGE pot is the coolest part, too..

I'll make some time tomorrow to look it over again.

okgb · Post by **okgb** » 15 Sep 2011, 01:40

Thanks , i was getting ready to build a range master but held off once i saw the viper
released , why not add the extra controls .

coldcraft · Post by **coldcraft** » 15 Sep 2011, 03:28

it looks as if the junction of the 3n3 and 1n should not connect to the Pot, and the pot should go to ground instead. it is similar to the runoffgroove omega.

jwpartain1 · Post by **jwpartain1** » 15 Sep 2011, 23:46

Yes, you are right. The pedal uses Neutrik jacks (I Neutrik) that are grounded when a cable is not plugged in, thus I was having issues differentiating some of the input/ground connections.

It is similar to the Omega, you're right. It'll still be a few days before I have the time to go over everything thoroughly.

I'll tell you what though, it sounds great

okgb · Post by **okgb** » 16 Sep 2011, 12:33

When i asked about the viper in the requests section i got this reply ,
hopefully helpful to this discussion

Re: adding to the germanium booster
by RnFR » 31 Aug 2011, 00:52

lame!
http://apocalypseaudio.blogspot.com/201 ... drive.html

coldcraft · Post by **coldcraft** » 16 Sep 2011, 13:21

okgb wrote:When i asked about the viper in the requests section i got this reply ,
hopefully helpful to this discussion

Re: adding to the germanium booster
by RnFR » 31 Aug 2011, 00:52

lame!
http://apocalypseaudio.blogspot.com/201 ... drive.html

i think he was just pointing out the name similarity.

A Naga Viper was a record holding hot pepper of a hybrid sort. I think it held the most previous record that was recently broken.

culturejam · Post by **culturejam** » 16 Sep 2011, 13:59

coldcraft wrote:A Naga Viper was a record holding hot pepper of a hybrid sort. I think it held the most previous record that was recently broken.

I'm pretty sure the new winner was a Guatemalan Insanity Pepper.

okgb · Post by **okgb** » 16 Sep 2011, 16:58

http://apocalypseaudio.blogspot.com/201 ... drive.html

Sorry can't edit these , but the full and correct link

mmolteratx · Post by **mmolteratx** » 17 Sep 2011, 04:09

jwpartain1 wrote:Thanks culturejam. There are no markings on the blue cap, that's why I haven't got it. BTW I figured that the brown caps were labeled in micro Farads, they used labeling like 683K.

They're there but very difficult to see. My eyes are barely good enough when wearing contacts. You've gotta get just the right angle of light to see them.

Catalinbread - Naga Viper [traced]