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BASTL Instruments bitRanger Analog Logic Computer

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The bitRanger is a patchable analog logic computer which sculpts sonic worlds ranging from data noise to melodic arpeggios. While being a handheld standalone synth it is also right at home in the music studio. 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 patchbay of the bitRanger is a place for exploration where you can simply connect outputs to inputs to see what happens. This can be done methodically or with complete experimental abandon. Go nuts! Battery Power and a built in speaker make the bitRanger totally portable. Tweak it’s 4 knobs, 8 switches and more than 100 patch points in the woods, on the beach, on a train and in the studio.


- LFO clock oscillator for rhytmical 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


- 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 rhytmical 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 witch a switch adds more flavour
- Utility Belt section adds advanced features
- Left and Right audio override section


- 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

Technical Specifications
Type: Analog
Synthesis: Subtractive
Oscillators: 2
Waveforms: Square, Triangle
Osc Modulation: LFO, Oscillator
LFO: 1
LFO Parameters: Square
Polyphony & Tuning
Polyphony: 1
Timbrality: 1
Tuning: Atonal
Modes: Mono
Patches RAM: 1
Case: Desktop
Controls: Buttons, Knobs, Modulation Pin Matrix
Display Type: LED
Audio Output Connections: 1/4" Phone Jack, Mono Out
Year Released: 2016
Design Notes:

Designed by Peter Edwards a.k.a. Casper Electronics. Help from Phillip Stearns, Rob Hordijk and Václav Peloušek
Manuals & Documents

Product Links
Company Product Sites:
[+] www.bastl-instruments.com
MSRP List Price: $250 - convert

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