Emma ReezaFRATzitz RF1Verified

From the post

Requested by a few people. Horrible to do a layout for because of multiple cascading stages with close connections from a 14 pin IC which means you can quickly run out of space, but managed to work my way through it eventually. At 22 columns wide it will just fit in a 1590B if you file the sides down (or use a bench grinder like me), but would be more comfortable and with more room for wiring with a 125B. Turn it 90 degrees though and it would probably fit more comfortably in the 1590B, even with 22 columns to accomodate vertically, This has a built in buffered bypass and so only needs a SPDT stomp, or DPDT if you want to include LED indication. If you would prefer to use a 3PDT stomp and conventional true bypass switching, then the Stomp 4 connection becomes the output, you can omit the Stomp 6 connection completely, and also ignore the 2.5mm pitch 150n and 470K at the top right hand side.

Info about the Emma original:

A unique type of OD/dist. pedal that was designed to emulate as faithfully as possible the distortion characteristics of a real tube amp.

With the inclusion of a bias control the user is allowed to adjust the inner workings of the amplifier from class B ( far left) to class A ( far right) and anywhere in between, altering the harmonic structure of the signal and providing a much wider variety of tonal options than your standard OD/ dist. pedal.

Additional controls for Level, Gain,and a Hi Cut/ Hi Boost tone circuit allow the user to fine tune the Reezafratzitz to taste.

BOM:

Resistors 120R

1

Resistors 10K

4

Resistors 22K

4

Resistors 27K

1

Resistors 100K

6

Resistors 150K

2

Resistors 470K

6

Resistors 1M

4

Capacitors 47p

5

Capacitors 100p

2

Capacitors 1n

2

Capacitors 6n8

4

Capacitors 47n

2

Capacitors 150n

4

Capacitors 100u

3

IC CD4069

1

Transistors BC549

1

Modified version with additional Bass and Mids controls

BOM:

Capacitors 47p 5

Capacitors 100p 2

Capacitors 1n 2

Capacitors 2n2 1

Capacitors 6n8 4

Capacitors 47n 2

Capacitors 150n 4

Capacitors 100u 3

Resistors 100K 4

Resistors 10K 6

Resistors 120R 1

Resistors 150K 2

Resistors 1M 4

Resistors 22K 4

Resistors 27K 1

Resistors 470K 6

Resistors 47K 2

IC CD4069 1

Transistors Q1 1