freestompboxes.org

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

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

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.

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

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?

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

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

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:

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!

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

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

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.

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.

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

one of you have the schematic?
Thanks

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

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

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?

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?

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.