Bob Blick preamp-noisy!

[Noplasticrobots]

I got the first half working! I want to add an EQ section per the Geofex article:
http://www.geofex.com/Article_Folders/EQs/paramet.htm

I don't have any inductors and I have to cram the EQ section between U1A and U1B which leaves me with the Twin T EQs:
http://www.geofex.com/Article_Folders/EQs/paramet.htm#variable_Q_twin_t

So here are my questions: In the images is 0.5 R half the value of the other resistors? Also, there's no pot on the initial image of the Bootstrapped Twin T, how do you adjust the tone?

[Noplasticrobots]

The output is kinda low when listening through headphones (even though it's only through one ear of stereo phones, it's really low). How can I increase the output? I've got a 1Mohm resistor between the inverting input of U1A and the output of U1A. This should be 30dB gain. Do I need to run the output into the second op amp section to boost it more?

[gtrmac]

General guitar Gadgets has a schematic and even a PCB for the MXR Microamp preamp. If you want to add a passive EQ you will probably need another amplifier stage to make up the loss through the EQ.

Elliot Sound Products used to have a guitar/bass preamp with active EQ but I cna't find it on his site now. I have the schematic if you want it though.