modding a chinese rat to USA rat circuit

darkstar · Post by **darkstar** » 22 Jan 2012, 13:55

first off a link:
http://www.happybob.com/rstrand/rat/pcratrev.gif

the chinese rat reverted to the "Original RAT" circuit
**i have a chinese rat and want to make it into a USA LED RAT circuit**............

i can handle changing the two 1Ms and the 1uf- simples
the extra 10k however , by all accounts, is across the volume pot , i would love some halp on where to solder this sucker.

would it be here?

darkstar · Post by **darkstar** » 22 Jan 2012, 19:09

WELL well well, happy bob has mis-read those 220k resistors it seems they were 2M2 resistors.

darkstar · Post by **darkstar** » 22 Jan 2012, 22:36

oh well im gonna try outside lugs, fingers crossed

darkstar · Post by **darkstar** » 23 Jan 2012, 02:37

ok so i did the 10uf cap change and the 10k across the lugs of the volume pot.

it seems to have made the pedal a lot louder, and not a great deal else, it certainly doesnt sound any more like the USA RAT

i thought replicating a 10K pot from a 100k pot would make it less loud?!?!

i need helpppppppp!

darkstar · Post by **darkstar** » 23 Jan 2012, 13:32

did i get the wrong lugs of the pot?

Hides-His-Eyes · Post by **Hides-His-Eyes** » 23 Jan 2012, 14:38

Louder as in at max volume or louder as in it gets loud much lower down on the volume knob?

You wouldn't expect a resistor to ground on the output to change much except the volume to be honest.

What are you using as your benchmark for "USA-rat" ness?

darkstar · Post by **darkstar** » 24 Jan 2012, 03:25

hi there thankyou for the reply. it seems to be louder through the whole sweep.
I have a US RAT and it sounds different to the chinese one.
I'm clutching at straws really as theres no other real differences to the circuits .

darkstar · Post by **darkstar** » 24 Jan 2012, 03:26

if i could make the chinese rat sound like the US ...
they are worth twice as much nowadays