Vorg - F-502 Warp Sound (Pearl F-602)

nightraven · Post by **nightraven** » 14 Nov 2011, 13:54

i figured since this pedal is going to a new owner this afternoon i'd take a few photos in the off-chance that somebody would want to make a clone of it

tasteless · Post by **tasteless** » 18 Nov 2011, 15:42

O.K., I'll bite..
What does it sound like ?
What's the trimpot for ?

nightraven · Post by **nightraven** » 18 Nov 2011, 17:18

tasteless wrote:O.K., I'll bite..
What does it sound like ?
What's the trimpot for ?

sounds like crap and the trimpot increases the amount of crap

it's a fixed wah kind of thing and the trimpot makes it more resonant (and in turn more distorted). the control labelled 'envelope' just sweeps through the filter. no envelope at all.
it took me two years to find because Kevin Shields (My Bloody Valentine) infamously has it on his pedal table labelled "Sometimes" (as in the song) but it's only there to drive people like me crazy searching for that elusive sound.

Nocentelli · Post by **Nocentelli** » 18 Nov 2011, 17:35

... cool box, though.....

Effectsiation · Post by **Effectsiation** » 20 Apr 2012, 15:32

I wanted to bump this, because I have some of those NEC chips on the way

Anyone have capacitor values? Does anyone still own one of these that could do a few more pictures or take notes about the resistors not shown in the pictures?

Dirk_Hendrik · Post by **Dirk_Hendrik** » 20 Apr 2012, 17:44

If I had known at the time Nightraven owned this pedal I probably would have stalked him into insanity for a proper trace.

nightraven · Post by **nightraven** » 20 Apr 2012, 21:27

Dirk_Hendrik wrote:If I had known at the time Nightraven owned this pedal I probably would have stalked him into insanity for a proper trace.

sorry man! i thought you didn't like fuzz pedals

pretty sure Discofreq has several of these pedals so maybe we can convince him to dig them out

DiscoFreq · Post by **DiscoFreq** » 29 May 2012, 16:41

Thanks to Effectsiation for his message (I didn't notice this thread)!

nightraven wrote:
Dirk_Hendrik wrote:If I had known at the time Nightraven owned this pedal I probably would have stalked him into insanity for a proper trace.
sorry man! i thought you didn't like fuzz pedals

pretty sure Discofreq has several of these pedals so maybe we can convince him to dig them out

"several": 1 Vorg and 1 Pearl version

This is the Vorg (I knew I saw it a few days ago but still had to search for a while

):

A little different from nightraven's pedal: green PCB and some different types of caps?

2 caps show no value:

Effectsiation · Post by **Effectsiation** » 27 Jun 2012, 00:15

Hey DiscoFreq!

Can you read the code off the green cap you can't see a value on? It looks like it says something like 1A473 maybe? It's actually the part where you wrote no value that we need to see

Thanks!

Effectsiation · Post by **Effectsiation** » 27 Jun 2012, 00:17

I should add that any numbers you can read off the other ceramic capacitor could help too, if it has any.

rocklander · Post by **rocklander** » 27 Jun 2012, 00:43

looks like A383 (or A363?) to me...

pedalgrinder · Post by **pedalgrinder** » 29 Jun 2012, 15:58

still plenty of time for some good stalking to get a good trace of this unit! the thing that baffles me is the resistor values to hard to read from the pics the cap that doesn't have a number looks like a 100n not a lot to work out but i reckon those damn resistors from the pics will be the biggest nightmare.

DiscoFreq · Post by **DiscoFreq** » 29 Jun 2012, 17:26

The pedal was on my desk for a few weeks after taking the pictures, but now I cleaned up my desk :-/

I think the code on the green one is A223 (looking at the original hi-res picture)

The ceramics without values had no numbers at all IIRC.

Prostheta · Post by **Prostheta** » 21 Jul 2012, 14:36

Cool - 223 is 22pf x 10 x 10 x 10, or 22,000pF/22nF.

Visualdistortion · Post by **Visualdistortion** » 09 Aug 2012, 23:29

one of you have the schematic?
Thanks

pedalgrinder · Post by **pedalgrinder** » 10 Aug 2012, 08:03

trace if from the pictures and you'll have the schematic then post it for us thanks

grizzlytone · Post by **grizzlytone** » 11 Aug 2012, 13:46

This is a schematic I made from pictures in this thread. There's just a few resistor values missing in places where they don't matter much. For the "27...?" try 2K7 or 270R

Peace out

detoxology · Post by **detoxology** » 18 Aug 2012, 04:04

grizzlytone wrote:This is a schematic I made from pictures in this thread. There's just a few resistor values missing in places where they don't matter much. For the "27...?" try 2K7 or 270R

This is rather brilliant, has anyone had the time to try it yet?

Effectsiation · Post by **Effectsiation** » 23 Aug 2012, 17:43

Paging John Lyons, a little birdie told me you had one of these in your shop! Could you help some fellas out with the missing values?

John Lyons · Post by **John Lyons** » 24 Aug 2012, 00:58

The 10k at the input can be 15K I've seen both...Not crucial at all.
I used something more than 27ohms at the freq pot. It just limits the frequency at the high end
so it's also not crucial, just sub in a 1k pot there are test to see what you like.
The 47k at the output is right.