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Specifications

(see text for detailed description.)

Supply Voltage 

(min –> max)

±9V –> ±15V

Supply Current 

(max draw @ ±12V)

+12V: 6.5mA          –12V: 4.0mA

Input Voltage 

(@ ±12V)

0V

pp

 —> 10V

pp

Max Output Voltage

±5V

Input & Ouput (I/O) coupling

Capacitive (AC)

Output Impedance

3.3µF in series with 1k

Control Voltage (CV) inputs

0V –> V+

CV input coupling

Direct (DC)

CV input impedance

100k

Components

1

Assembled Plague Bearer filter module

1

DC power cable – (euro) 9” Ribbon cable w/10-&16-pin 0.1" connectors

(frac)18" 4-wire cable w

/

 4-pin 0.156" connectors

2/7

High

Low

Gain

Input

level

CV

Signal

High Low In Out

f

(h)

Summary of Contents for PB-1E

Page 1: ...flight of harmony Eurorack and Fractional rack Modules rev3 3 1 7 ...

Page 2: ...ut Ouput I O coupling Capacitive AC Output Impedance 3 3µF in series with 1kΩ Control Voltage CV inputs 0V V CV input coupling Direct DC CV input impedance 100kΩ Components 1 Assembled Plague Bearer filter module 1 DC power cable euro 9 Ribbon cable w 10 16 pin 0 1 connectors frac 18 4 wire cable w 4 pin 0 156 connectors 2 7 High Low Gain Input level CV Signal High Low In Out f h ...

Page 3: ...s circuit so it s very problematic to try to describe this filter in the normal terms The slope is directly tied to the gain of the circuit making it variable and the Q is affected by all three filter controls The setup is actually a combined High and Low pass The corner frequencies are adjusted by the controls and can be overlapped completely which gives a comb filtering effect The rest is for yo...

Page 4: ...amount of the low end passed through the filter i e it lowers the highpass fc and dramatically boosts the resonance Applying an increasing voltage to the Low CV input also acts as clockwise rotation which is the weird part Increasing the Low CV lowers the highpass fc allowing more low end through Gain Controls the gain of the filter Clockwise to increase yadda yadda yadda 2 The part to keep in min...

Page 5: ...rouded header removes all mystery PB 1F 18 4 wire cable with identical red AMP connectors at either end Just plug it in Jacks There are nine jacks per filter two for each input and output and one for the Gain CV when the Gain CV was added in the r3 1 the choice was to either widen the panel to 10 or 12 hp or just add one jack on the side The pairs of jacks are wired directly together called multip...

Page 6: ...n be made to self oscillate turning it into an independent oscillator I get a lot of questions about this so here is the quickest way to get it working Nothing plugged into Input 1 Turn High all the way down 2 Turn Gain all the way up 3 Turn Low all they way up 4 Slowly turn up High 5 As you can see in the image to the left the usable range tends to be between 8 00 and 10 00 It will start out as a...

Page 7: ...ted there long before they hit the f h website http www muffwiggler com forum index php A big thank you to those who have sent in suggestions and comments keep them coming Send samples to samples flightofharmony com Comments suggestions complaints to flight flightofharmony com Drawings and designs 2009 flight of harmony Red Hand Studios http www flightofharmony com revised 9 09 Can you hear them 7...

Page 8: ...f h ...

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