Rambler Octave Fuzz parts sub

[AM]

Hi,
I want to build Tim Escobedo's Rambler using some spare parts I have. Question:
Would it be OK if I replace the 100uF caps with 22uF ones? I understand there is going to be some difference in bass response but would the 22uF values would be ok considering I'm not going to use the circuit as a stand alone amp to drive a speaker.
Also, I only have 1N4007 diodes in hand. Would they be OK as a replacement for the 1N5817 Schottky?
Schem link:
http://www.aronnelson.com/gallery/main.php/v/DRAGONFLY-LAYOUTS_0/album18/album144/RAMBLER_VERO.gif.html
Thanks in advance

[mistahead]

Newbie speaking in the hope to have someone agree or disagree and explain (I learn more by being wrong occasionally)... so many grains of salt and wait for someone more expereienced to comment .

For the couple of bucks (at most) for the the caps I'd go with the 100's - as factor of 4-5 on the value difference would strike me as something that would significantly alter the outcomes.

The diodes would be a matter of taste more than function in all likelyhood, they'd probably work fine but not necessarily identically. I'd throw sockets in and play around with those, LED's and anything else in my bucket of "used to be in something else" parts until I liked what I was hearing, I've recently used a red LED and an chunky unlabelled black diode from an ADSL modem instead of 1N5817's in a darlington drive circuit because I preferred the outcome... but I have odd tastes lol.

[PRR]

Caps on pin 5 and pin 7 could be less than 1uFd, no audio effect. (I bet the 100uFd comes from "using some spare parts I have"; it's way over-size.) With a way-dirty power supply, the cap on pin 7 might prefer to be 22 or 47uFd.

With un-boosted guitar, the diodes really want to be LOW-LOW threshold voltage. Copper-oxide, Germanium, or Schottky. 1N400x won't have much effect until you strum HARD. Try it and see. (No guitar would be able to break-over LEDs in this plan.)

[AM]

Thanks Paul! I appreciate your help. People have been reporting raising the cap at pin 5 up to 220 uF in the case of smokey amp (pretty much the same thing as this circuit sans the octave part) to improve the bass response. I guess it does make a difference when the source to be driven is a speaker and not the input of an amp or other pedal in the signal chain.