Bastl Instruments bitRanger Getting Started
Text of the manual
CLK OUT O
XOR
CONN 2
o
+
–
LFO
LFO CV
I
II
A
B
HFO
MODE
UTILITY BELT
VOLUME
VCO
RATE
LEFT RIGHT
ADVENTURE BITS
MUX1
BIT8
BIT3
MUX2
/64
/32
/16
/8
/4
/2
/128
/256
/512
/1024
/2048
/4096
FREEZE
BEND
BEND
BEND
HARD
VCO
HFO
HFO CV
VERRIDE
B
E
Y
T
SYNC
SYNC
IN
OVERRIDE
INSTRMNTS
CASPER ELECTRONICS
VCO CV
2
3
4
7
8
8
8
6
5
5
1 POWER
jack and switch.
A battery or wall power supply may be
used to power the bitRanger. Plugging
the supply into the power jack will
disconnect the battery. Battery: Install
a 9volt battery into the open battery
compartment on the bottom of the
unit. Power supply: Use a 9 or 12VDC
100mA (or more) negative ring supply.
2.1mm pin - 5.5mm barrel.
2 AUDIO
Onboard speaker and stereo head-
phone output. Plugging a cable into
the headphone output will disconnect
the speaker.
3 VCO (voltage controlled
oscillator) knob.
Audio tone generator.
Turn the knob to change the pitch
9 VDC
ON/OFF
H
E
A
D
P
H
O
N
E
O
U
T
CASPER ELECTRONICS x BASTL INSTRUMENTS
+
_
1
2
4 HFO (high frequency
oscillator) knob.
Master sync oscillator. Turn the knob
to set master pitch. The VCO will sync to
this pitch creating harmonic steps and
wave shaping effects when adjusted.
5 MODE switches.
Change the oscillator wave shape
by setting both mode switches.
AI. = simple tone
BI. = complex tone
AII. = noisy tone
BII. = digital noise
Each mode reacts differently to the
master sync oscillator and the data
modulation setting.
6 DATA MODULATION
switch.
Apply the LFO to a wave shape
processor. Speed of modulation is set
with the LFO and CLK OUT switch
(On right side panel). The effect differs
in each mode.
AI. = pitch modulation
BI. = wave shape inversion
AII. = slight wave shape randomization
BII. = noise randomization
7 LFO (low frequency
oscillator) knob.
Controls the rate of sound modulation
when the data mod switch is on
(and more...discussed later). The LFO
range is set with the LFO RATE switch.
8 BEND sockets
[input/output].
Plug light sensors (included) into any
of the bend sockets to control each
oscillator with light. Plug in other stuff.
See what happens.
TECH NOTE Each oscillator is based on a common schmitt trigger (inverter), resistor, capacitor
architecture. The bend socket is connected to the input and output of the schmitt trigger.
Connecting resistors(like the LDR) to these points will change the pitch of the oscillators.
Lots of other effects can be achieved by connecting other components and signals to these sockets.
bend socket
I / 0
resistor
schmitt trig.
capacitor
CLK OUT O
XOR
CONN 2
o
+
–
LFO
LFO CV
I
II
A
B
HFO
MODE
UTILITY BELT
VOLUME
VCO
RATE
LEFT RIGHT
ADVENTURE BITS
MUX1
BIT8
BIT3
MUX2
/64
/32
/16
/8
/4
/2
/128
/256
/512
/1024
/2048
/4096
FREEZE
BEND
BEND
BEND
HARD
VCO
HFO
HFO CV
VERRIDE
B
E
Y
T
SYNC
SYNC
IN
OVERRIDE
INSTRMNTS
CASPER ELECTRONICS
VCO CV
3
3
2
1
Patch outlined sockets
into non-outlined
sockets to create
sequences and other
audio hijinks.
outline = output
no outline = input
dashed line = input or output
1 DIVIDER BITS [outputs]
The divider sockets output 12 clocks of
different speeds which are subdivisions
of the LFO.
These outputs can be patched to any of
the input sockets to create sequenced
patterns.
LFO
/2
/4
reset position
/8
/16
etc
BIT PATCHING
• Wear headphones (!) for a stereo
experience.
• Play with the oscillator pitch and range
settings.
• Plug multiple divisions into the same
input socket.
• If nothing crazy is happening, plug in
more cables.
• Keep plugging in cables!
&TRICKS
• Build the example patch on the left
and patch a bit from the adventure
bits section into the center VCO CV
input socket.
2 RESET button
Resets all of the divider output clocks.
3 MUX1&2 (multiplexer)
[inputs]
Wave shape and pitch modulation.
Each Mux has 4 inputs: A, B, C and INH
(inhibit=mute).
Patching a square wave (divider bit
outputs etc) to any of these inputs will
create changes to the wave shape of the
audio oscillator and sends two different
versions of that signal to the left and
right outputs of the headphone jack.
The effect varies from subtle to extreme
depending on the MODE setting.
MUX2
(right)
MUX1
(left)
CLK OUT O
XOR
CONN 2
o
+
–
LFO
LFO CV
I
II
A
B
HFO
MODE
UTILITY BELT
VOLUME
VCO
RATE
LEFT RIGHT
ADVENTURE BITS
MUX1
BIT8
BIT3
MUX2
/64
/32
/16
/8
/4
/2
/128
/256
/512
/1024
/2048
/4096
FREEZE
BEND
BEND
BEND
HARD
VCO
HFO
HFO CV
VERRIDE
B
E
Y
T
SYNC
SYNC
IN
OVERRIDE
INSTRMNTS
CASPER ELECTRONICS
VCO CV
2
1
1
1
Use the bits as voltage
sources to control the
frequency of the three
voltage controlled
oscillators.
1 CV
(control voltage) [inputs]
The inputs in each of these sockets are
“weighted” from left to right, meaning
that the left most input (per socket) has
the weakest effect while the rightmost
has the strongest.
LFO: Change the rate of the LFO.
Higher voltage = higher rate.
Works best with low frequency signals
(such as /64 and up from the divider bit
section).
VCO: Change the pitch of the VCO.
Higher voltage = higher pitch.
This is a slewed input meaning that
changes to the pitch will be gradual.
CV PATCHING
cv input
pitch change
HFO: Change the pitch of the HFO.
Higher voltage = lower pitch. The depth
of pitch modulation depends partly
on the initial setting of the HFO pitch
knob. For instance the depth will be
much greater when the knob is in the
middle than it is when all the way up
or down.
2 BYTE
sockets [inputs]
and switch
Plug multiple bits into the BYTE
sockets to create stepped voltages
that can then be applied to the VCO
(via the BYTE switch)and/or the
CV output jack (right side panel)
to control external equipment.
The BYTE switch turns BYTE CV
modulation of the VCO on(up)
and off(down).
TIPS
• Try the example patch pictured
to the left. Insert jumpers one at
a time to get an idea how they work.
• Use the longer divisions (/128 and up)
to create patterns that change over
long periods of time.
• Patch the 4 cables (as shown) into
the BYTE socket to get a ramped
arpeggio like the one shown in the
drawing below.
Switch the bits around to get
different patterns.
• The BYTE input jacks can also work
as outputs when you have several
TECH NOTE The byte section is a standard R2R
digital to analog converter. When multiple bits
are fed into the R2R you get a stepped voltage
at the output.
bits connected. Patch a cable into
any available spot in the BYTE section
and connect to the different oscillator
CV input sockets or the BEND sockets.
• The left terminal of each BEND
socket functions as a crude pitch CV
input. The results are unpredictable
but can be very effective in different
scenarios.
&TRICKS
• Patch /32 to MUX1 INH and /4
to MUX2 INH.
• Connect the MUX1&MUX2 output
sockets from the adventure bits
section into the VCO CV and LFO CV
inputs.
• Patch more cables from the divider
bits to the MUX and CV inputs and
observe the changes in the sound
and behavior.
/2 to “E” input
/4 to “T” input
/8 to “Y” input
Output voltage
CLK OUT O
XOR
CONN 2
o
+
–
LFO
LFO CV
I
II
A
B
HFO
MODE
UTILITY BELT
VOLUME
VCO
RATE
LEFT RIGHT
ADVENTURE BITS
MUX1
BIT8
BIT3
MUX2
/64
/32
/16
/8
/4
/2
/128
/256
/512
/1024
/2048
/4096
FREEZE
BEND
BEND
BEND
HARD
VCO
HFO
HFO CV
VERRIDE
B
E
Y
T
SYNC
SYNC
IN
OVERRIDE
INSTRMNTS
CASPER ELECTRONICS
VCO CV
2
1
Patching techniques for
the adventurous user.
These features are most
effective when integrated
into complex patches that
incorporate the MUX1&2
sections and CV sockets.
LFO SYNC
sockets [inputs]
LFO Hard sync resets the LFO
cycle when it receives a positive signal.
This works well with the DATA output
(2) and ADVENTURE BITS (3). Read
section 3 below before using the
adventure bits.
LFO Freeze holds the LFO low
when it receives a positive signal. This is
intended primarily for use with external
signals. Because the signal causes the
LFO to freeze it is very likely that patching
a signal from within the bitRanger will
cause the whole circuit to freeze and
make no sound.
2 DATA
socket [output]
This socket outputs a combination
of the two MUX outputs as a stepped
voltage which is fed to the data
input of a shift register which is then
processed through MUX 1&2. This can
be used as a CV source for external
equipment or as a complex modulation
source when patched into the oscillator
CV and SYNC inputs.
3
4
5
ADV. PATCHING
BIT R. AS MASTER
1 CLK OUT
(clock out) jack and switch
Connect the CLK OUT jack to the clock
input of any drum machine with a clock
input such as the Korg VolcaBeats or
Teenage Engineering PO12. The LFO sets
the clock speed. The CLK OUT switch
sets if the clock is divided by 2 or 32.
2 CLK OUT OVERRIDE
socket [input]
Bits patched to this socket override the
setting of the CLK OUT switch and are
routed directly to the CLK OUT jack.
This is useful if you wish to clock
external devices with a division other
than /2 or /32.
TIPS for MASTER
• Plug several bits from the divider
section into the clk out override
socket to get uneven clock patterns.
• You will often get the best results if
the CLK OUT switch is set to /2 when
the LFO rate is LOW and /64 when
the LFO rate is HIGH.
DIVIDER BITS
DATA
MUX1
MUX2
CLK
A
A
B
B
INH
INH
C
C
CONN 1
RESET
CLK OUT O
XOR
CONN 2
o
+
–
LFO
LFO CV
I
II
A
B
HFO
MODE
UTILITY BELT
VOLUME
VCO
RATE
LEFT RIGHT
ADVENTURE BITS
MUX1
BIT8
BIT3
MUX2
/64
/32
/16
/8
/4
/2
/128
/256
/512
/1024
/2048
/4096
FREEZE
BEND
BEND
BEND
HARD
VCO
HFO
HFO CV
VERRIDE
B
E
Y
T
SYNC
SYNC
IN
OVERRIDE
INSTRMNTS
CASPER ELECTRONICS
VCO CV
2
BYTE CV OUT
CONN2
CLK OUT
/32
/2
1
BYTE CV OUT
/CONN2
VCO CV IN
/CONN1
B Y T E
VCO CV
HFO CV
/40
RES
reset
button
SYNC
FREEZE
in
MAGIC DATA PROCESSOR
BEND
BEND
BEND
HIGH
LOW
amp
headphone out
LEFT
RIGHT
DATA out
DATA
mod
/2 /32
CLK OUT
MODE
A
B
I
II
MUX 1
MUX 2
MUX1
MUX2
clk in
clk in
data in
BIT 3
OVERRIDE
/2
/4
/8
/16
/32
/64
/128
/256
/512
/1024
/2048
/4096
RESET
reset
button
ancient data cave
ADVENTURE BITS
DIVIDER BITS
OVERRIDE
VOLUME
inh
a
b
c
inh
a
b
c
BIT 5
CLK OUT O
XOR
CONN 2
o
+
–
LFO
LFO CV
I
II
A
B
HFO
MODE
UTILITY BELT
VOLUME
VCO
RATE
LEFT RIGHT
ADVENTURE BITS
MUX1
BIT8
BIT3
MUX2
/64
/32
/16
/8
/4
/2
/128
/256
/512
/1024
/2048
/4096
FREEZE
BEND
BEND
BEND
HARD
VCO
HFO
HFO CV
VERRIDE
B
E
Y
T
SYNC
SYNC
IN
OVERRIDE
INSTRMNTS
CASPER ELECTRONICS
VCO CV
DIVIDER BITS
DATA
MUX1
MUX2
CLK
A
A
B
B
INH
INH
C
C
CONN 1
RESET
CLK OUT O
XOR
CONN 2
o
+
–
LFO
LFO CV
I
II
A
B
HFO
MODE
UTILITY BELT
VOLUME
VCO
RATE
LEFT RIGHT
ADVENTURE BITS
MUX1
BIT8
BIT3
MUX2
/64
/32
/16
/8
/4
/2
/128
/256
/512
/1024
/2048
/4096
FREEZE
BEND
BEND
BEND
HARD
VCO
HFO
HFO CV
VERRIDE
B
E
Y
T
SYNC
SYNC
IN
OVERRIDE
INSTRMNTS
CASPER ELECTRONICS
VCO CV
PATCH
CLK OUT O
XOR
CONN 2
o
+
–
LFO
LFO CV
I
II
A
B
HFO
MODE
UTILITY BELT
VOLUME
VCO
RATE
LEFT RIGHT
ADVENTURE BITS
MUX1
BIT8
BIT3
MUX2
/64
/32
/16
/8
/4
/2
/128
/256
/512
/1024
/2048
/4096
FREEZE
BEND
BEND
BEND
HARD
VCO
HFO
HFO CV
VERRIDE
B
E
Y
T
SYNC
SYNC
IN
OVERRIDE
INSTRMNTS
CASPER ELECTRONICS
VCO CV
DIVIDER BITS
DATA
MUX1
MUX2
CLK
A
A
B
B
INH
INH
C
C
CONN 1
RESET
CLK OUT O
XOR
CONN 2
o
+
–
LFO
LFO CV
I
II
A
B
HFO
MODE
UTILITY BELT
VOLUME
VCO
RATE
LEFT RIGHT
ADVENTURE BITS
MUX1
BIT8
BIT3
MUX2
/64
/32
/16
/8
/4
/2
/128
/256
/512
/1024
/2048
/4096
FREEZE
BEND
BEND
BEND
HARD
VCO
HFO
HFO CV
VERRIDE
B
E
Y
T
SYNC
SYNC
IN
OVERRIDE
INSTRMNTS
CASPER ELECTRONICS
VCO CV
TEMPLATES
• LFO clock oscillator for rhythmical
modulation
• VCO oscillator is synced to the HFO
oscillator
• 4 modes of operation selectable
by 2 switches
• built in speaker with volume control
• 9V DC center positive power supply
input
• 9V battery compartment from the
bottom
• <20mA power draw on headphones,
<60mA with speaker
(minimum 20 hours on battery)
• On /Off switch
• expansion connector
• package includes 3 photo resistors –
make your oscillators respond to light
by plugging these into the Bend socket
PATCHBAY
• 118 jumper cable patch points
• each oscillator has 3 differently slewed
CV inputs, sync inputs, rate knob and
bend points
• Divider Bits section – use clocks at
different speed to create patterns
• Adventure Bits section adds irregular
rhythmical elements
• MUX 1 and MUX 2 input sections to
modulate data loops and waveforms
• stereophonic output from MUX 1 and
MUX2 sections
• BYTE CV section is R2R DAC converter
which takes bits and converts them
to CV
• DATA modulation section switch adds
more flavor
• Utility Belt section adds advanced
features
• Left and Right audio override section
EXTERNAL
CONNECTIVITY
• 3.5mm stereophonic headphone
output
• Clock Input to sync the LFO oscillator
• Clock Output with selectable LFO
division (2 or 32)
• CV Output from the BYTE DAC section
• CV Input for the VCO
• CV In and CV Out connectors can be
routed to dedicated patch points on
the patchbay
ABOUT
RANGER
The bitRanger is
a patchable analog
logic computer which
sculpts sonic worlds
ranging from data noise
to melodic arpeggios.
Extensive connectivity
makes it so flexible that
it can connect to almost
anything: CV control its
unique sound, sync it
with drum machines and
sequencers or use it as
an algorithmic CV/GATE
pattern generator.
THE BITRANGER