Build - Pedal Project: Dinosaural Tubebender
The Dinosaural Tube Bender was released by Dan Coggins of Lovetone in 2003. It was intended to be a tonal hybrid of a Tonebender and a Tube Screamer. Around 150 units were made. It is a pretty unique drive circuit that uses transistors for gain, making it a great option for a larger turret board build. All four transistors were silicon in the original, but Q2 was a PNP transistor, while the other three were NPN transistors. The Tube Bender leans more towards drive than fuzz. Dinosaural described it is a "useful accessory that creates valve-like (tube) distortion without a valve amp, or pushes a "real" valve amp just that bit harder, to enhance what it already does to some degree.”
See Figure 2 in our Guitar Pedal Footswitch and Jack Wiring article for the recommended footswitch and I/O wiring.
Parts List
Value | Qty | SKU | Type |
---|---|---|---|
Capacitors | |||
100 µF | 1 | C-ET100-100-MOD | Electrolytic |
10 nF | 3 | C-MKT-D01-400 | Film cap |
33 nF | 1 | C-MKT-D033-400 | Film cap |
3.3 nF | 1 | C-MD0033-630 | Film cap |
47 nF | 2 | C-MKT-D047-400 | Film cap |
47 µF | 1 | C-BC-47-100 | Electrolytic |
Potentiometers | |||
100k Audio | 1 | R-VAM100KA-SS | Drive Control |
100k Linear | 1 | R-VAM100KL-SS | Tone Control |
100k Linear | 1 | R-VAM100KL-SS | Level Control |
Resistors | |||
10 kΩ | 3 | R-I10K | Carbon Comp Resistor |
120 kΩ | 1 | R-I120K | Carbon Comp Resistor |
150 kΩ | 1 | R-I150K | Carbon Comp Resistor |
1.2 kΩ | 3 | R-I1D2K | Carbon Comp Resistor |
1.5 kΩ | 1 | R-I1D5K | Carbon Comp Resistor |
1 MΩ | 1 | R-J1M | Carbon Comp Resistor |
1.2 MΩ | 1 | R-J1D2M | Carbon Comp Resistor |
22 kΩ | 3 | R-I22K | Carbon Comp Resistor |
2.2 kΩ | 1 | R-I2D2K | Carbon Comp Resistor |
Semiconductors | |||
2N2907 (PNP) | 1 | P-Q2N2907 | Silicon transistor |
BC109C (NPN) | 3 | P-QBC109C | Silicon transistor |
Other Items | |||
2x12 | 1 | P-HTBU-2X12-D | Board |
Black 1590BB | 1 | P-H1590BBBK | Enclosure |
Black 3PDT | 1 | P-H501-L-BLK | Footswitch |
Black/red LED | 1 | P-LPW-FLATBK-R | Prewired LED |
Carling mini toggle SPDT | 1 | P-H540 | Tone switch |
Lumberg switched DC jack | 1 | P-JBLB-IN-S | DC jack |
Mono jack | 1 | W-SC-111X | Output jack |
Rogan knobs | 3 | P-K155-1 | Knob |
Stereo jack | 1 | W-SC-112BX | Input jack |