Roland double beat schematic

Roland Double Beat

IN OUT

470K

9V Batt

0.1

1uF

+

820K

2SC1000

1K2

470K

22K

2K2

+9V

2SC1000
47pF

22K

120K

0.01

+

1uF

Fuzz Section

1M

220K

10K

22K

0.1

2SC1000

1K

10uF

+

1M

330K

150K

150K

250pF

Fuzz
Tone
Select

0.0068

0.0068

+9V

1K

2SC828

0.01

10K

0.5 H

10uF

+

100K

47K

33K

0.01

1K5

68K

2SC1000

470

20K 470K

470K

0.22

0.22

150K

Wah Section

The Double Beat is another of those funky, funky Fuzz Wahs. The wah function is pretty standard, if a little quiet because of the resistive divider
in front of the wah section cutting the signal down. The Fuzz secttion is pretty good, though. It has a good sound - no surprise as the first section is
a lot like a Fuzz Face, but is followed up by yet another gain stage to distort even more. The three fuzz tone selections are RADICALLY different from
each other.