tonepad octavia
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7/21/2019 Tonepad Octavia
http://slidepdf.com/reader/full/tonepad-octavia 1/1
Build the Tycobrahe Octavia octave up fuzz. Thanks to Phillip Bryant for the negative ground circuit schematic.Transformer is Mouser P/N 42TM022 available at . Off board components except for thepotentiometers are not shown on the layout. Trademarks are propery of their owners. Visit for more!
www.smallbearelec.comwww.tonepad.com
500k-A00k-A1k-Bk-B
+
9v
AC
ADAPTOR
INPUT
Ge Diode42TM022
Ge Diode
.1uF
180k
33uF
100uF
100uF
820k
Resistors1 - 220 ohm1 - 470 ohm1 - 1k1 - 1k21 - 22k
1 - 47k1 - 180k1 - 220k1 - 680k1 - 820k1 - 1M
Capacitors1 - 150pF1 - 0.001µF1 - 0.1µF2 - 33µF2 - 100µF
TransistorsQ1 - 2n5087Q2 - 2n4401Q3 - 2n4401
Pots1 - 1k Lin1 - 500k Log
Other 1 - 42TM0222 - Ge Diodes (1N34)
Parts List
Schematic
LAYOUT
TetaViaRev.1.Sep.14.2007
READY TO TRANSFER
L a y o u t a n d p r e s e n t a t i o n b y F r a n c i s
c o P e ñ a 2 0 0 1 - 2 0 0 7 ® .
A l l r i g h t s r e s e r v e d .
A u t h o r i z a t i o n f o
r p e r s o n a l u s e o n l y ,
a n y c o m m e r c i a l u s e i s f o r b i d d e n .
P e r m i s s i o n f o r p o s t i n g / s e r v i n g l i m i t
e d t o
OUTP
1M 680k 220k 22k 470
220
1k 47k 1k2
150pF .001uF
500kA
1kB
33uF
1
1
VOLUME
BOOST
3
3
2
2
3 2 1 3 2 1
0 ½ 1 1½ 2
0
½
1
1½
T O N E P A D . C O M T
T E T A V I A TA
F P 2 0 0 7 F
Q1 Q3Q2
9v
B O O S T O O S T VOLUMEOLUME
+
100u00 u
+
100u00 u
+
33uF3uF
+
33uF3u F
GNDND
INN
OUTUT
4 7 0
4
7
2 2 0
2
2
2 2 k
2
2
k
1 M1
M
6 8 0 k
6
8
k
1kk
180k80 k820k20k
47 k7k
1k 2k2
2 2 0 k
2
2
k
+9V9V
D11
D22
0 .
1
1
1 5 0 p
1
5
p
. 0 0 1
1
Q22 Q33Q11
PRIMARYRIMARY
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