What kind of settings do the pedals have?

Sonic Bump
Set the level control for output level. The toggle switch will select the correct vintage output coupling capacitor. The�mod setting adds increased lows for a thicker overdrive. The middle setting combines the different output coupling capacitors in parallel and affects the harmonic overtones produced by each capacitor to come through bouqueting the tone.

Fong Fuzz
Roll the volume up and the fuzz control back for a cleaner boost. Roll the volume control back and the fuzz up for heavy distortion at a lower volume. With the effect on, the volume knob on your guitar will become very operational. The tone will clean it up and get sparkly when the guitar volume is rolled off, and will overdrive/distort as it is turned up to full-on fuzz at full volume.

Crank Box
This is the sonic replica of the Tonebender MK III. The Volume controls output level and attack. The fuzz controls the amount of the effect. The gain control offers the two different versions of the MK III, wired direct or wired with a 220k resistor. We went with a 250k variable resistor, so you can decide which sounds best and achieve all tones in between. The tone control on this circuit is unique in that it shifts between two different coupling capacitors on the ends of the control and blends between the low through the middle sweep of the control, yielding a variety of differing harmonic overtone contents.

*Check units for operation with guitar volume full.

What is "hardwired"?

Transistor biasing is preset on all effects except the Fong Fuzz.
Fong Fuzz has an internal bias adjustment control. It is set for a quality fuzz tone at birth. Improper adjusting of this control can result in no sound or poor quality of sound. It can be adjusted for a little more grind or grit or a cleaner boosted tone.

What is N.O.S.?

N.O.S. - New Old Stock. All Old School Effects are built with N.O.S. coupling capacitors and transistors, as only these can provide true vintage style tones. All electrolytic capacitors are of modern manufacture, as these components have a limited life and will deteriorate over time. Most N.O.S. parts are of 1960s manufacture that we procure.

Circuits are of vintage 1960s design with correct values. Much time and effort is put forth to assure that actual components are used for construction. Availability can be subject to change. Actual parts may vary.

Why Use Sockets?

All of our units use socket mounted transistors so that each unit can be mated with a properly matched set of corresponding transistors. Transistors are matched for gain HFE characteristics and their order/placement in the circuit is very important for
biasing and gain.
*Caution - transistors remounted in improper order can result
in non-functioning of the unit.
*When ordering special orders, you can request transistor type.
Extra charges may apply.

There are unused holes on my Sonic Bump circuit board - are there parts missing?

No. This board was designed to mount several treble booster style circuits.

Separate Options for Pedals:

We can provide sonic recreations of several designs:
The 1965 Dallas Rangemaster; after which the Sonic Bump is modeled.
The Hornsby-Skewes Treble Booster; used by Ritchie Blackmore.
The Orange Treble and Bass Booster; used by David Gilmour.
The Vox Treble Booster; used by Brian May and others.