RossComp - Difference in cap change

[Shakal]

I've just finished my Ross Compressor clone! It was my first one and I made all kind of mistakes but it's working now, I think...   

My doubt is: I accidentally changed the Cd value from 220pF to 220nF. I just realized when it was already soldered and I said WHATEVER! Now I'm wondering what difference would it make? It's only a filter or sort of?

Another thing: I changed the 2N3904 to BC549C, is any possible problem with this change? I checked the datasheets and they both seem interchangeable... Actually this made one of my mistakes, the pinage of BC549C is inverted compared to 2N3904... I turned the RC on and nothing, searched like crazy and found the mistake! ehhehe

This is the schematic:

http://www.tonepad.com/project.asp?id=9

Obs: My ross compressor is inside a hard paper case  Awful huh? LOLLL!!! Everybody says: "What tha hell is this piece of crap? It really works?" The metal case is coming... I will take a picture and post it here.

Thanks!

[markm]

That cap change has to have really effected the highs BIGTIME.
The 220pf shunts some of the highs going into the circuit to ground.
I would think this comp is probably muddier than a Hog Farm in April!

[Shakal]

NO WAY!! LOOOLL!

Highs to the ground isn't such a big deal because I play BASS... I don't know the meaning of "a mud compressor" but I really think that my comp is mud whatever it means! I will change the cap, thanks!!

What can you people say about the transistor change?

Seeya

[markm]

What I mean is, the tone will sound muted, no highs, like the tone control on your Bass is completely off.
That's what "mud" basically is.
A cute little term, isn't it?! 

[Timebutt]

Interesting, a Ross compressor used for bass: exactly what my next plans were
Could you tell me if it sounds good for bass or not? (did you change input cap or did you alter anything else for better low end response?)

[markm]

Interesting, a Ross compressor used for bass: exactly what my next plans were
Could you tell me if it sounds good for bass or not? (did you change input cap or did you alter anything else for better low end response?)

Look here>>> http://www.lynx.bc.ca/~jc/pedalsDynacomp.html
JC has some mods for the Dynacomp which also can be used for a Ross.
Pretty interesting. 

[Shakal]

It sounds mud... 

I think it turns to mud whatever goes in... I used on my Bass and my uncle's Guitar and it sounded the same, mud (I liked this term).

Here in Brasil we have a have a term, it is called "Embolado", and it is how my bass sounded. It's when the sound is too low and seems indefined... I don't know the word in english for this but I think MUD is a good one.

Eventough I liked the sound on guitar, sounded very HEAVY!

I didn't change the input and output cap, but I socketed them for any further changes, transys too.

Again: Is there any problem by changing the transistors from 2N5088 to BC549C?

Thanks