EA Tremolo - beavis audiobeavisaudio.com/beavisboard/projects/bbp_EATremolo.pdf · 2019. 1. 3. ·...
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+ - + - + - + - a b c d e f g h i j 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 25 26 27 28 24 29 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 25 26 27 28 24 29 30 a b c d e f g h i j EA Tremolo Many years ago, an Australian electronics magazine published a guitar tremolo project. This tremolo has become a favorite in the DIY community for its great sound and moderate parts count. The project presented here is based on General Guitar Gadgets Improved EA Tremolo project. Check it out on the web: www.generalguitargadgets.com. beavis board project out C1 47nF Input 9 volts + Output in A250K Depth R1 1MΩ R3 1MΩ R2 1MΩ Q1 2N5457 G D S R4 10KΩ C2 10uF C1 220nF Q2 2N3904 B C E R5 560KΩ R6 150KΩ R8 4.7KΩ R7 180Ω R9 1.2KΩ C4 22uF VR1 A25K (volume) C3 47nF VR2 A250K (depth) G D S R11 68KΩ R10 120KΩ C5 47nF R12 15KΩ Q3 2N5088 C8 1uF C6 1uF R13 2.2MΩ C7 1uF R14 15KΩ VR3 A100K (speed) R15 1KΩ Q2 2N5457 47nf 10uf + 1MΩ 1MΩ 1MΩ 2N5457 d g s 10KΩ 220nF 2N3904 E B C 560KΩ 150KΩ 4.7KΩ 180Ω 1.2KΩ 47nF A100K Volume 2N5457 d g s 68KΩ 120KΩ 47nf 2N5088 E B C B C E 15KΩ 2.2MΩ 1uf + 15KΩ 1uf + 1uf + A100K Speed 1KΩ 22uf + revision: 1.0 ● 28 may 2008 ● © 2008 beavis audio research
Transcript of EA Tremolo - beavis audiobeavisaudio.com/beavisboard/projects/bbp_EATremolo.pdf · 2019. 1. 3. ·...
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a b c d e f g h i j
EA Tremolo
Many years ago, an Australian electronics magazine published a guitar tremolo
project. This tremolo has become a favorite in the DIY community for its great
sound and moderate parts count. The project presented here is based on General
Guitar Gadgets Improved EA Tremolo project. Check it out on the web:
www.generalguitargadgets.com.
beavis board project
out
C1
47nFInput
9 volts +
Output
in
A250K
DepthR11MΩ
R31MΩ
R21MΩ
Q1
2N5457
G
D
S
R410KΩ
C2
10uF
C1
220nF
Q2
2N3904
B
C
E
R5560KΩ
R6150KΩ
R84.7KΩ
R7180Ω
R91.2KΩ
C4
22uF
VR1A25K
(volume)C3
47nF
VR2A250K(depth)
G
D
S
R1168KΩ
R10120KΩ
C5
47nF
R1215KΩ
Q3
2N5088 C8
1uF
C6
1uF
R132.2MΩ C7
1uF
R1415KΩ
VR3A100K(speed)
R151KΩ
Q2
2N545747n
f
10uf+
1MΩ
1MΩ
1MΩ
2N5457
d
g
s10KΩ
220n
F
2N
3904
E
B
C
560KΩ
150KΩ
4.7KΩ
180Ω
1.2KΩ
47n
F
A100K
Volume
2N5457
d
g
s
68KΩ
120KΩ
47n
f
2N
5088
E
B
C
B
C
E
15KΩ
2.2
MΩ
1uf+
15KΩ
1uf+
1uf+
A100K
Speed
1KΩ
22uf+
revision: 1.0 ● 28 may 2008 ● © 2008 beavis audio research
