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Module Current Draw Database
MUFF WIGGLER Forum Index -> Modular Synth General Discussion  
Author Module Current Draw Database
Muff Wiggler
Been wanting to do this for a long time, here's a small start anyway, I'll add more later.

Ideally I'd like to have every module in this list, even if we don't know how much current it draws.

If you have one you would like to add, or know the draw of a module, make a seperate post with only the name of the module and the amount of current. Put your comments in other posts. This is because I will add the info to the main list here in this first post, then delete your posts. It'll keep the thread tidy and allow us to keep your comments that way.



3P: 10ma
LPFA: 35ma
VCS: 50ma
WVX: 75ma


VCO: 55ma
Micro LFO: 40ma
Dual Manual Filter: 40ma
Filthy Filtre: 55ma
Stonz: 65ma
KlangWerk: 60ma
QuadMix VCA: 29ma
Binary Zone: 30ma
Splitter: 10ma
Dark Star Chaos: 26ma
Bar Graph: 35ma
MiniWave: 65ma
Improbability Drive: 69ma
Final Filter: 57ma
I/O 35ma
Time Machine: 95ma
Dual Linear VCA: 35ma
Mixer/Processor: 35ma
Mixer 10ma
EG1: 41ma
Frequency Divider: 15ma
Sequential Switch 15ma
Scanner 20ma
WindowComparator: 30ma
Multi/Atten: 0ma/Passive
Hex Zone: 150ma

CGS/Ken Stone

RealRing: 0ma (Passive)
PsychoLFO: 12ma


Saw Animator: 100ma
Zeroscillator: ????


All Doepfer modules have their draw listed in an XLS file which is kept updated.
You can download the latest version from Doepfer by clicking here

A-101-1 Vactrol Steiner Filter 30
A-101-2 Vactrol Lowpass Gate 20
A-101-3 Vactrol Modular Phaser 50
A-101-9 Universal Vactrol Module ?
A-102 Diode Low Pass 30
A-103 18dB Low Pass (TB303 type) 30
A-104 Quad Res. Filter (Trautonium) 30
A-105 24dB Low Pass (SSM Type) 30
A-106-1 Xtreme Filter (MS20 LP/HP) 30
A-106-5 SEM VCF 30
A-106-6 XP VCF 50
A-107 Multitype Morphing Filter 200
A-108 48dB Low Pass 40
A-109 Voltage Controlled Signal Processor 40
A-110 VCO 70
A-111-1 H-VCO 40
A-111-2 Dynamic VCO (~ 2008/2009) ?
A-112 Sampler/Wavetable Gen. 50
A-113 Subharmonic Generator 30
A-114 Ringmod. 40
A-115 Divid 20
A-116 WP 20
A-117 DNG 20
A-118 Noise 20
A-119 Ext.Input/Env.Follower 30
A-120 24dB Low Pass (Moog type) 30
A-121 12dB Multimode Filter 30
A-122 24dB Low Pass (Oberheim type) 20
A-123 24dB High Pass (running out) 20
A-124 Wasp Multimode Filter 30
A-125 Voltage Controller Phaser (VCP) 20
A-126 Voltage Controlled Frequency Shifter 80
A-127 Triple Resonance VCF 100
A-128 Fixed Filter Bank 20
A-129-1/2 Vocoder Analysis+Synthesis 180
A-129-3 5xAttenuator/Offset/Slew Limiter 40
A-129-4 Slew Limiter Controller 30
A-129-5 Vocoder Voiced/Unvoiced Det. 30
A-130 VCA linear 20
A-131 VCA exponential 20
A-132-1 Dual VCA 20
A-132-2 Quad VCA 30
A-132-3 Dual linear/exponential VCA 30
A-133 Dual VC Polarizer 30
A-134-1 VC Panning 40
A-134-2 Dual VC Crossfader (2008) 20
A-135-1 VC Mixer 30
A-135 (/A-144) VC Mixer (with A144 order) 30
A-135-2 Filter/VCA/Panning Mixer Unit (2009) ?
A-136 Distortion/Waveshape 30
A-137-1 VC Wave Multiplier 40
A-137-2 VC Wave Multiplier II (fall 2008) ?
A-138a Mixer linear 10
A-138b Mixer logarithmic 10
A-138c Polarizing Mixer 20
A-138d Crossfader/FX Insert 20
A-138e Quad Triple Crossfader/Polarizer 10
A-138xa Mixer Expander linear 0
A-138xb Mixer Expander log. 0
A-139 Headphone Amplifier (sold out) 100
A-140 ADSR 20
A-141 VC ADSR 30
A-142 VC Decay/Gate 40
A-143-1 Quad AD-Generator 70
A-143-2 Quad ADSR 70
A-143-3 Quad LFO 70
A-143-5 Synced LFOs (no availability date) ?
A-143-9 VC Quadrature LFO/VCO 30
A-144 Morphing Controller 30
A-145 Standard LFO 30
A-146 Variable Waveform LFO 20
A-147 Voltage Controlled LFO 40
A-148 Dual Sample&Hold 20
A-149-1 Quantized/Stored Random Voltages 40
A-149-2 Digital Random Voltages 40
A-149-3 Fluctuating Random Voltages ?
A-150 Dual Voltage Controlled Switch 30
A-151V2 Quad Sequential Switch 20
A-152 Voltage Addressed T&H/Switch 40
A-154 Enhanced Sequencer Controller 60
A-155 Analog/Trigger Sequencer 100
A-156 Dual Quantizer 50
A-160 Clock Divider 40
A-161 Clock Sequencer 20
A-162 Dual Trigger Delay 40
A-163 Voltage Controlled Divider 40
A-164-1 Manual Gate 10
A-165 Dual Trigger Modifier/Inverter 20
A-166 Dual Logic Module 40
A-167 Analog Comparator 20
A-170 Slew Limiter 20
A-171 Voltage Controlled Slew Limiter 20
A-172 Maximum/Minimum Selector 10
A-174 Joy Stick (with Aluminium Lever) 40
A-175 Dual Voltage Inverter 20
A-176 Control Voltage Source 20
A-177 External Foot Controller (sold out) 30
A-178 Theremin Control Voltage Source 60
A-179 Light Controlled Voltage Source 60
A-180 Multiple I 0
A-181 Multiple II 0
A-182-1 Switched Multiple 0
A-185-1 Bus Access 30
A-185-2 Precision Adder/Bus Access 10
A-186-1 Gate Combiner 0
A-188-1X BBD Module (128 stages) 80
A-188-1Y BBD Module (256 stages) 80
A-188-1A BBD Module (512 stages) 80
A-188-1B BBD Module (1024 stages) 80
A-188-1C BBD Module (2048 stages) 80
A-188-1D BBD Module (4096 stages) 80
A-188-1? BBD Module (without BBD chip) 80
A-188-2 A-188-2 Tapped BBD Module 120
A-189-1 VC Bit Modifier 50
A-190-1 MIDI-to-CV/Gate/Clock Interface 10
A-190-2 Low-Cost Midi-to-CV/Gate Int. ?
A-191 16xMCV16/Shepard (sold out) 30
A-192 16x CV-to-MIDI Interface 40
A-195 Pitch-to-CV Converter ?
A-196 Phase Locked Loop 40
A-197 Analog Meter (sold out) 50
A-197-2 LCD scope kit 300
A-198 Trautonium Manual/Ribbon Controller 40
A-199 Spring Reverb 80

Elby Designs


Flight of Harmony

Plague Bearer single module 6.5ma

Future Sound Systems

Decade Counter DC1: 50ma


Audio Frequency Generator: ???
Dalek Modulator: ???
Vulcan Modulator: ???
Dual Cyclotron: ???
Dual Bissel Generator: ???
FrequenSteiner 10ma


MiniWave Expander w/daughterboard: 50ma


Moddemod: 0ma (Passive)


8008 Bass Drum: 25ma
Analog Logic: 35ma
BurstGen: 30ma
Cynare: 100ma
Digital Noise: 40ma
Dual AD: 15ma
Dual Chime: 20ma
Dual Drum: 25ma
PsychoLFO: 12ma
Tube VCA: 35ma


MOTM Moog VCF 20ma
MOTM DualVCA 33ma


Oakley Lag 5ma

Plan B

Model 28 Tap Clock 90ma
Model 40 Headphone Preamp 20ma

STG Soundlabs

Mankato VCF: 25ma
Wavefolder: 10ma


Phaser : 45ma

Synthesizers Dot Com

Q104 MIDI Interface 50ma
Q105 Slew Limiter 15ma
Q106 Oscillator 30ma
Q107 State Variable Filter 20ma
Q108 Amplifier 30ma
Q109 Envelope Generator 30ma
Q110 Noise Source 8ma
Q111 Pan/Fade 30ma
Q112 4-Channel Mixer 30ma
Q113 8-Channel Mixer 30ma
Q115 Reverb 8ma
Q116 Ring Modulator 30ma
Q117 Sample and Hold 30ma
Q118 Instrument Interface 8ma
Q119 Sequential Controller 50ma
Q120 Connector Interface 0ma
Q121 Banana Jack Interface 0ma
Q122 Mini Jack Interface 0ma
Q123 Standards 12ma
Q124 Multiples 0ma
Q125 Signal Processor 8ma
Q127 Fixed Filter Bank 120ma
Q128 Switch 10ma
Q130 Clipper, Rectifier 15ma
Q140 Fixed Filter Bank Aid 0ma
Q141 Oscillator Aid 0ma
Q142 Pedal Interface 8ma
Q143 Presets 8ma
Q146 Normalization 0ma
Q147 Distributor 8ma
Q149 Signal Selector 0ma
Q150 Transistor Ladder Filter 30ma
Q161 Oscillator Mixer for Q106 30ma
Q162 Filter Mixer for Q107 30ma
Q960 Sequential Controller 120ma
Q961 Sequencer Interface 10ma
Q962 Sequential Switch 40ma
Q963 Trigger Bus 0ma


TLN-861 Dunsel 38ma
TLN-862 Lag Processor 38ma
TLN-863 Max Min Generator 17ma
TLN-864 Switching Comparator 30ma
TLN-866 Gate Processor 82ma
TLN-867 Tuner & Headphone Monitor 45ma
TLN-854 Sword of Kahless 81ma
TLN-712 Doomsday Machine 150ma
TLN-156 Neural Agonizer 70ma
TLN-904 Veeblefetzer 50ma
TLN-428 Voltage Controlled State Variable Filter 23ma
TLN-442 Voltage Controlled Lowpass Filter 15ma
TLN-132 Dual Voltage Controlled Amplifier 29ma

The Harvestman

Polyvoks 25ma
Malgorithm 50ma
Zorlon Cannon 80ma
Tyme Sefari 80ma
Sound of Thunder 60ma
Stilton Adapter ???

Tiptop Audio

Tiptop Audio Z3000 50ma
Tiptop Audio Z5000 160ma


1200 Series Joystick: 20ma
1200 Series Boogie Filter: 50ma
1200 Series Borg Filter : 50ma
1200 Series Joystick Axis Generator: 100ma
1200 Series Noise Ring: 100ma


If you have one you would like to add, or know the draw of a module, make a seperate post with only the name of the module and the amount of current. Put your comments in other posts. This is because I will add the info to the main list here in this first post, then delete your posts. It'll keep the thread tidy and allow us to keep your comments that way.

If you know the values of any of the ones with '???' please post and let me know, thanks.

This is just a rough start, I will clean up the above further, plus add more sometime soon.
Current draw for all Modcan modules can be found on the price list, which is at the bottom of the module list.
although many modules draw similar current on each rail, there are some that are rather asymmetrical--i think the time machine is a good example.
Muff Wiggler
consumed wrote:
although many modules draw similar current on each rail, there are some that are rather asymmetrical--i think the time machine is a good example.

yep, i always simply take the larger of the two numbers
great, this is very helpful!
Muff Wiggler
just did a little cleanup on this thread, thanks everyone for your submissions, and please keep them coming!! I've added them all to the list (haven't gotten to Modcan yet)

Glad you guys find this helpful. I think it's really handy to have it all in one place. In upcoming days I will make the list better, alphabatizing each section, etc., and I'll do some surfing to gather some more values, etc.

thanks everyone
yet another reason why this board is dominating the internet in 2008 plus.

Oakley VCO 30
Oakley ADSR/VCA 25
Oakley Variabele State Filter 40
Encore Frequency shifter 45
Oakley Triple VCA 30
Oakley S&H 25
MOTM 830 Dual Mode Mixer 22
MOTM 440 SSM 2040 Discr.OTA VCF 30
Cyndustries Zeroscillator 150
MOTM 300 VCO 60
Oakley VCLFO 25
Oakley Overdrive 15
Oakley VC ADSR 25
Oakley Journeyman Filter 35
MOTM 410 Triple Resonant Filter 40
MOTM 420 VC MS-20 Filter 30
Oakley Equinoxe 25
MOTM 380 Quad LFO 25
CGS Tube VCA 13
Oakley EFG 30
Metalbox Dual Drum 20
Metalbox 8008 Drum 25
Hey, I started an Excel sheet for this. So far I just have MOTM data in it. Maybe I can post it so others can continue to load it up?
Plan B - from their website

Model 9 Mixer 25mA
Model 10 polyphonic Envelope 40mA
Model 11 Evil Twin Bandpass Filter 40mA
Model 12 State Variable Vactrol Filter 25mA
Model 13 Dual Timbral Gate 35mA
Model 14 Dual Voltage Processor 100mA
Model 15 Complex VCO 40mA
Model 17 Triple Event Timer 50mA
Model 23 (ELF) Analog Shift Register 20mA
Model 24 Heisenberg Generator 65mA
Model 25 Multi-tasking Audio Processor 30mA
Model 26 Multi-tasking CV Processor 30mA
Model 28 Programmable Tap Clock 35mA
Model 29 Dynamic Mult 0mA (Passive)
Model 36 (ELF) Leveler 20mA
Model 37 (ELF) LFO 20mA
Model 38 (ELF) ADSR 20mA
Model 39 (ELF) ADSR Expander 20mA
Model 40 (ELF) Headphone Preamp 20mA
Modcan B Series - from their website

VCO 01B 55mA
Quad LFO 03B 65mA
Envelope Generator 04B 30mA
Dual LFO 05B 50mA
Phase Shifter/Timbre Mod 06B 59mA
Noise/S&H/Ringmod 07B 70mA
3x1 Mixer 09B 20mA
Multimode Filter 10B 20mA
Dual VCA 13B 30mA
4Pole High-pass 15B 40mA
Dual X-Fader 16B 35 mA
Dual Lag 18B 20mA
Pulse Div/Switch 20B 20mA
VCA Panner 21B 25mA
MiniWave 22B 100mA
Diode Filter 23B 20mA
Dual Mixer 27B 15mA
CEM Lowpass Filter 29B 30mA
Super Delay 30B 85mA
4VCA 31B 70mA
X/Y Contoller 32B 20mA
Spring Reverb 35B 40mA
4075 Lowpass 36B 15mA
VC Flanger 38B 75mA
Frequency Shifter 39B 85mA
Dual Multimode 40B 40mA
Fixed Filter 41B 45mA
904a (Moog Modular) LPF 44B 20mA
Envelope Follower 45B 50mA
Dual Oscillator 46B 85mA
VC Dual ADSR 47B 60mA
Multiple 48B 0mA (Passive)
Attenuator 49B 0mA (Passive)
Clock 43B 60mA
Analogue Sequencer 54B 100mA
Dual Quantizer 55B 45mA
Switch 56B 45mA
CV Recorder 57B 200 mA
VCDO 58B 200mA
Digital Delay 59B 150mA
Quad Envelope 60B 100mA
Quad LFO 61B 110mA
Dual VDO 62B 170mA
Here is that Excel sheet with the MOTM data FWIW. I saved it as an earlier version of Excel so hopefully most people that have Excel on a PC can open it.
Anyone have the Cyndustries mA draw?
All your Analogue Systems are belong to us.

we're not worthy Muff, this thread needs some housecleaning my brother! we're not worthy

RS20 Ring Modulator 10mA
RS30 F/V Converter and Envelope Follower 25mA
RS40 S&H, Noise, and Clock Generator 25mA
RS50 Pulse Shaper, Trigger Generator, DC Shifter 40mA
RS60 ADSR Contour Generator 24mA
RS70 Inverter, Pre-Amp, Slew Generator 7mA
RS80 Low Frequency Oscillator 25mA
RS90 Oscillator 60mA Initial current peak 70mA
RS95 Enhanced Oscillator 65mA Initial current peak 70mA
RS100 Low-pass Filter 30mA
RS110 Multi-mode Filter 45mA Initial current peak 70mA
RS120 Comb Filter 10mA
RS130 Programmable Scale Generator 110mA Medium power module
RS140 MIDI/CV Converter 200mA High power module
RS150 Sequential Switch 16mA
RS160 CV Mixer 5mA
RS165 Audio Mixer 5mA
RS170 Multiple - No power required
RS180 Voltage Controlled Amplifier 8mA
RS190 Meter 5mA
RS200 Sequencer 55mA
RS210 Fixed Filter Bank 17mA
RS220 Joystick 20mA
RS230 CV Buffer 30mA
RS240 Frequency Shifter 70mA
RS250 Trunk line - No power required
RS260 Quantiser 55mA
RS270 3.5mm, 1/4", phono Adapter - No power required
RS280 Trigger/Clock Divider 20mA
RS290 Sampler/Delay 360mA High power module
RS295 Delay Expander - Powered by RS290
RS300 CV/MIDI Expander
RS310 Reverb/Chorus 17mA
RS320 Spring Reverb Figure not available
RS330 Keyboard Controller Figure not available
RS340 Gate Delay 40mA
RS350 Slew Limiter 20mA
RS360 Vocal/Phase Filter Bank 150mA Initial current peak 200mA
RS370 680mA High power module
RS375 - Powered by RS370
RS376 - Powered by RS370
RS390 Echo 160mA
RS400 Phaser 25mA
RS500E EMS Synthi Filter 35mA
RS510E EMS Trapezoid Shaper 40mA
Make Noise QMMG: 60mA

Analogue Solutions GT8, MC01 & FS01: Less than 20mA per unit as per email from Tom Carpenter.
Parallel Worlds
Livewire Dual Cyclotron: 60mA
Livewire Frequensteiner: 10mA
Livewire Vulcan modulator: 80mA
Livewire Dalek Modulator: 80mA

Metalbox Wave Multipliers: 50mA
Metalbox Sequential Switch: 125mA
Metalbox Pulse Divider/Logic: 80mA
Metalbox Slope detector: 20mA
Metalbox Dual LFO: 45mA
Metalbox VC Divider: 60mA
Metalbox Gated Comparator: 50mA
Metalbox Super Psycho LFO: 25mA
Metalbox ADSR: 25mA
Metalbox Patchpanels: 0mA (passive of course)
Metalbox/CGS Real Ringmod: 0mA (passive)
MOTM modules (from their website):

15v unless otherwise stated.

MOTM-101 - 24ma
MOTM-120 - 30ma
MOTM-190 - 25ma
MOTM-300 - 45ma
MOTM-310 - 31ma
MOTM-320 - 30ma
MOTM-380 - 15ma
MOTM-390 - 24ma
MOTM-410 - 32ma
MOTM-420 - 30ma
MOTM-440 - 33ma
MOTM-480 - 40ma
MOTM-485 - 23ma
MOTM-490 - 22ma
MOTM-650 - 5V, 575ma
MOTM-700 - 25ma
MOTM-730 - 15V @16ma, +5V @100ma
MOTM-800 - 15ma
MOTM-820 - 24ma
MOTM-830 - 22ma
MOTM-890 - 18ma
All you have to do is stay under mA on both + and - sides, right?
Yeah. I guess no one lists the neg because it is always smaller than the pos.
in some modules it's greater, e.g. the synthasonic phaser.
I keep a spreadsheet on my site of measured power requirements. I just added some of the latest Jurgen Haible, Natural Rhythm, and Neil Johnson designs to the file. Website
Blacet 2910 Midiverter = 10mA
Post-Lawsuit Lowpass Filter: +16 mA, -15 mA
Voltage Mini-Store/Graphic Sequencer: 7 mA
Trigger Mini-Store/Trigger Sequencer: 8 mA
Time Buffer: 18 mA

i'll post more values as i get more modules measured. i need to build them first, though.
i'm reading +18 mA and -19 mA on the wavefolder right now. that's on 15 volt rails.

the Sea Devils Filter is +33 mA and -29 mA on 15 volt rails. probably because its using voltage regulators.
Bubblesound uLFO 100mA

Cwejman FSH-1 40mA
Cwejman MMF-6 50mA
Cwejman CTG-VC 70mA
Cwejman VCO-6 30 mA
Cwejman 4MX 30 mA

Division 6 Filtare SEIII 80 mA

Malekko Wiard Noisering 80mA
Malekko Wiard Envelator 80mA

Make Noise Maths 60mA
Make Noise Pressure points 20mA
Make Noise Wogglebug 50mA

MFB Dual LFO 30 mA

Oakley RM-4014 12mA

Synthesis Technology e350 Morphing Terrarium 60mA
New Paia 97xx modules (copied from

9748 Balanced Modulator
+16 -13

9744 CV Source
+7 -7

9753 Envelope Follower
+10 -13

9756 Linear to Exponential Converter
+11 -14

9745 Mixer
+11 -13

9751 Noise Source
+12 -13

9754 Preamp
+10 -13

9752 Sample and Hold
+21 -33

9741 Dual VCA
+26 -26
Parallel Worlds
Intellijel uStep: about 60 mA's
Perhaps this is all stuff that should go in the wiki?

PAiA 2720 Modular Series Synthesizer:
2720-2 (VCO): +/-9v @25ma
2720-5 (Control Osc.): 18v @ 1.75ma
2720-9 (Glide) +/-9v @1.5 (each)
2720-11 (Env. Follower): +9v @6.5ma, -9v @ 7.5ma
Keyboard +9v@ 1.5ma. -9v @3ma, 18v @ 1ma

- If anybody needs any of the other 2720 series modules measured, let me know. I'm going to get around to doing the modules (that I have) that aren't listed at some point..

PAiA 4700 Series Modular Synthesizer:
4710: +18v @10ma, +9v @ 1.5ma, -9v @7ma
4711: +/-9v @ 4ma
4712: +/-9v @ 3.5ma
4720: 9v @ 20ma
4730: +9v @ 15ma, -9v @25ma
4740: +18v @ 17ma
4750: 18v @ 1.75ma
4760: +18v @ 50ma, +/-9v @ 1ma
4762: +/-9v @ 25ma, 18v @ 25ma*
4770: (Watt Block): 117v 50/60khz, +/-9v @100ma or 18v @100ma
4780: +18v @50ma, +/-9v @1ma

* Includes 2720-8 and 2720-9 circuitry.
I'm still looking for the current draw of the CGS ASR, if anyone has any figures? Fuck, I have a DMM, anyone wanna tell me how to measure it myself?
Babaluma wrote:
I'm still looking for the current draw of the CGS ASR, if anyone has any figures? Fuck, I have a DMM, anyone wanna tell me how to measure it myself?


Step 1: Set your DMM to measure amps. Measure your PSU without the ASR plugged in (put the black prong from your DMM to ground and put the red to the plus or negative voltage).

Step 2: Plug your ASR in and measure again. The difference will be the current draw of the ASR..
thanks so much valis, i might well have to give that a go later!

does anyone know if the ground, plus and minus terminals are clearly labelled on the blacet ps500?
From memory I think it is clearly labelled on the board.

If not, the power lead of existing modules will tell you:

Red = +15V
Black = 0V
White = -15V

I'm looking for the value of the following:

stg 3xvca (essentially the same as the .com version)
stg buff mult (essentially a .bam but made for 5u)
cgs utility lfo
fonitronik sequential switch
fonitronik ps3100 resonator
yu s/h noise

Anyone have these handy?
I've searched through Muffwiggler, Lunar Experience, and Noisebug websites and cannot find any info on the current draw for the various Moon Modular modules.

Anybody have this info? help
Question regarding all these current draw ratings for modules...

Are these listed from factory specs or are they what you guys have actually used a DMM and measured yourselves? I have found what the factory specs is sometimes different from reality.

That being said. I think both + & - Rails should be listed, and the +5 Rail if it's used.

And it should also be noted that i assume the readings are w/ the module at "idle". meaning, simply powered up w/ nothing patched.

R-51: 150 MA
R-52: 150 MA
R-53: 200 MA
R-54: 250 MA

Warning: tubes require about 2.5 times these values when powering up cold. Power supply must be capable of handling this transient capacity on power-up. Most Euro cabinets use analog power supplies that might or might not be able to produce this transient current. The Doepfer 1.2 amp supply will run up to five R-5x modules. We recommend upgrading the power supplies in Modular World and early Monorocket cabinets for more capacity. Switching supplies are not able to produce transient current above their rated current outputs--anyone using switching supplies should choose a supply rated for the transient current only.

R-60: 100 mA at +5, 10 mA at +-12 or +-15v.

(Courtesy of Eric at Metasonix)
Flame Tame Machine: 180ma
Still no lead on the draw of the Livewire AFG?
hi. anybody know the ma for these...

Jurgen Haible Triple Chorus
Ian Fritz EG
YuSynth Diode Ladder VCF
CGS Dual Utility LFO

many thanks!
Just measured this one for someone else, thought it might help others.

Voxglitch Digital Effects draws +112mA/-5mA

Adam- V
it seems like the zeroscillator wasn't established but i just read that it was +150ma /-100ma
Can someone give me a hand figuring out how to use a digital multimeter to test current draw from my modules? My Google-fu seems weak as I can't really find anything except for testing car parts.
i was interested in this for a while till i had plans for a giant power supply. i think somebody was talking about measuring from pins/terminals on the power supply. touch black probe to ground and red to either + or - depending on which you are measuring. amperage measuring mode (?). then you would plug in module by module measuring how the available amps decreases. the amount of decrease would be your ma power draw per rail. i have never done this. just guessing based on what i think i remember reading/hearing a while back. i doubt it would hurt to try to measure stuff though. i just busted out the meter to test power on a pcb for the first time and lo and behold it worked as expected. try it out see what happens.
Livewire Dual Bissell Generator: 45mA

4ms Rotating Clock Divider: about 60mA
I'm a newbie here. I searched. Honest. And I've bugged Ken enough the last couple days. Knowing x-series current requirements would be great public knowledge anyway. (I have 2 single oscillators and a Backend. They are fabulous.)

Thanks, Wigglers for any light you can shed.

Lama (Richard Aylward)
Livewire AFG draws 110mA on each rail (measured during various conditions).

automaton wrote:
Still no lead on the draw of the Livewire AFG?

AFG (both cables attached): 120ma
Dalek Modulator: 70ma
Dual Cyclotron: 50ma
Dual Bissell Generator: 20ma
Frequensteiner: 20ma
Vulcan Modulator: 70ma

EDIT: Just saw Adam V's reply - 110ma is acceptable for an unofficial rating (I'm obligated to err on the high side for now)

Analogue Solutions BD99 10ma@5V
Analogue Solutions VCO2 20ma@12ma
I tried meassuring current usage of some modules by following directions in this thread, and it does not seem to work. I am using a doepfer P9 case (A-100 PSU2).

I am measuring by connecting DMM (set to measure current) to ground and +/- 12 on the busboard and it does not seem to change no matter how many modules are plugged in ! ??

What am i doing wrong here ??

Am i not connecting to the right spot ?

Also, when i test the +12 part, the modules seem to turn off . Did i screw something up here ?

Any help would be much appreciated.

I've tried contacting Ken Macbeth multiple times about current usage of the euro x-series dual osc and backend filter, but he says he can't measure them because he does not own either of those modules !
Hmm, are my questions too stupid or something ?
I feel like no one ever wants to help me out here. I get a negative vibe from this forum.......
Why is that ?
milkyjoe wrote:
Hmm, are my questions too stupid or something ?
I feel like no one ever wants to help me out here. I get a negative vibe from this forum.......
Why is that ?

because this is a thread for LISTING the module currents you have measured yourself (please see the first post). a quick use of the advanced search tool (using the string "measure current" for topic titles only) brings up the following threads that might help you: urrent urrent urrent

i think you'll find this a very positive forum in general, the only negativity being that which you bring to it yourself.


I don't think your questions are stupid but I do think you've probably asked these ones in the wrong area. All the technical boffins hang out in the DIY section!

From what you've said in your original post, I suspect you've gotten a bit confused on measuring of current. To measure current, you need to use an ammeter (or a multimeter set to measure current) and insert it BETWEEN the power source and the modules (known as "in series"). It sounds like you stuck the meter (which for measuring current has a VERY low resistance) across the supply, effectively presenting it with a short circuit, hence the modules cutting out. I'm sure there's a thread somewhere here that covers the correct way to measure the current draw of a module if you search for it.

Well, I followed the directions in this thread exactly as it says:

(put the black prong from your DMM to ground and put the red to the plus or negative voltage).

Step 2: Plug your ASR in and measure again. The difference will be the current draw of the ASR..

So now I have damaged my power supply /and/or modules??
Then I am told I'm being negative....

How do I know if I damaged anything ?

Why is there incorrect info here ?
Too bad nobody was willing to help me, including module manufacturers or the place I spent thousands of dollars buying my gear..
Yes, I am feeling negative right about now....
Thanks for the help though, I don't know why I didn't think to use that search term and try google.

Well, now I know how to measure, and I just have to worry that I may have damaged something.

Apparently I need to learn to use search better. d'oh!
That sounds like instructions for measuring voltage which is measured by placing a voltmeter across the supply rather than an ammeter in series.

I don't think you'll have damaged your modules. The supply may not have survived though. Does it all still work?

I think It still works, but I won't be sure until I get back home in a day.

I find it very strange that wrong information would be put in this thread.
If one looks through it, there are actually 2 people giving wrong instructions.

The worst part right now is that I am stuck away from home for the next 24 hrs, and I am worrying.

Don't you think that someone should remove the bad info in this thread so anyone else doesn't potentially destroy thousand of dollars worth of gear ?.

I am really starting to regret getting into modular at this point.
It's like "don't do this wrong, or you may fry this really expensive gear", but the important info needed is kept hidden from people.

I find it completely ridiculous how many manufacturers refuse to provide the current draw of there modules...this would not have happened if they did!
Is it just so people can screw up their system and buy more ?..

This sucks.....

I really hope my modules are ok. If they aren't, then I am done with this bs.
I hope your system is OK too. Don't give up on modular synthesis based on this experience though. Learn from it and move on.

Which thread are you talking about that has the bad info?

I posted in the DIY section asking if I could have damaged anything by doing this stupid thing. I'll see if I get a reply....

I wonder why the fuse did't blow in my new 650$ doepfer
case ?
In this thread, I recall at least two people instructing to test for current the way I did. Or, am I really that stupid to have misunderstood the instructions?

Thanks for you replies Adam, I really appreciate it.
You'll definitely get more help for this sort of stuff in the DIY section.

As for the fuse, is it the right one?

I certainly would think so, as I bought the case new from analogue haven...

Although, I have received faulty equipment from there before..
many manufacturers don't give current draw info, because it's a fluctuating thing, and can only ever be a guess. it depends on a lot of variables. some may give a minimum requirement, whilst others a maximum that will never be exceeded. if you are really worried about it, then you are doing the right thing by trying to measure it yourself. good luck!
That's good to know. Thanks babaluma
Well, i finally got a chance to test things, and i seem to have gotten lucky, as everything seems to work.

Thanks for the help
Great to hear your system is OK milkyjoe.

You're not Boosh fan by any chance are you?

Yes i am ! Havent watched it in awhile, but that (the one with milkyjoe) was one of my fav episodes .
Nanageddon's probably my favourite episode.

Can the list please be updated with the below? The DC1 measurement is wrong.

FSS DC1 Decade Counter: 20mA on +12V
FSS FIL1 Convulsion Generator: 20mA on +12V, 20mA on -12V
Demi Jon
More Eurorack current draw info on this thread: List of Eurorack Modular Current Draw - can you help?
Demi Jon
The marvelous John Noble has announced his amazing new resource over on this page here , which contains most of the technical specs for almost all known Eurorack modules. There are some informational gaps in there, which he'd love to fill with their deliciously correct info. And user feedback will make it better too!

John Noble, you deserve more ridiculous emoticons than currently provides.
Does anyone know the draw of the Analogue systems RS 380? It's not in their PDF very frustrating
I've seen the ChaQuO listed a few places as 4mA. Is that really correct? I thought it had a Quadrature Oscillator?
Parallel Worlds
Current draw of the Tiptop Audio Z-DSP anyone ?
rezzn8r wrote:
I've seen the ChaQuO listed a few places as 4mA. Is that really correct? I thought it had a Quadrature Oscillator?

I just notice the description for Elby's Euro version of the chaquo is spec'd at 45 mA
Demi Jon wrote:
The marvelous John Noble has announced his amazing new resource over on this page here , which contains most of the technical specs for almost all known Eurorack modules. There are some informational gaps in there, which he'd love to fill with their deliciously correct info. And user feedback will make it better too!

John Noble, you deserve more ridiculous emoticons than currently provides.

Yes! I concur... nanners
Anybody know how much the Toppobrillo Quantimator draws?
Can I safely assume that the Subconscious Communications Model 37 draws the same as the Plan B? And that the posted Harvestman Polivoks draw applies to both the VCF and the VCG? Anyone have numbers handy for the Flame Talking Synth or the Blue Lantern Joystick?
tiptop zdsp - 166mA [130mA @ +12V and 36mA @ -12V]
Parallel Worlds
milkyjoe wrote:
tiptop zdsp - 166mA [130mA @ +12V and 36mA @ -12V]

thanks. the 130mA current draw on the + 12 volts is what mostly matters.
Double post, sorry d'oh!
Alwaysnew wrote:
Anybody know how much the Toppobrillo Quantimator draws?

30mA ±12V
Aries synth voltages from Synthfool Archives, Aries 1977 catalog:
Power Consumption (system voltage is + - 15VDC):

AR-312 Envelope generator, +15v. D.C. @4mA., -15vdc @2mA
AR-316 VCA, 6mA
AR-318 S&H/Clock Noise Generator, +15VDC @44mA, -15VDC @ 24mA
AR-321 Hex Attenuator no power consumption
AR-323 Dual Mixer 12mA
AR-331 Pre-Amp Envelope Follower, +15V @16mA, -15V @12mA
AR-317 VCO 36mA
AR-332 Dual VCO +15v @17mA, -15v @25mA
AR-324 Dual LFO Lag/Inverter +15v @48mA, -15v @20mA
AR-327 Multimode VC Filter +15v @15mA, -15v @17mA
AR-314 VCF 28mA
AR-329 Phase Flange +15v @12mA, -15v @11mA
AR-328 Stereo Reverb & Output +15v@39mA, -15v@27mA
AR-313 Keyboard Interface @10mA

I know you're riveted! You can now breathe freely..
It would be cool to see whos modular on muffwiggler is using the most power at one time.
Cwejman RES-4 110 mA
Cwejman BLD 60 mA
ALM Busy Circuits - Boss Bow Tie 50 mA
Gozinta 20 mA
I know things have changed since 2008. Here is a more current list of some Oakley modules with PCB issue numbers. Hope it helps! Guinness ftw!

VCO (issue 6) 30mA
Slim-VCO "A" (issue 2) 40mA
Slim-VCO "B" (issue 2) 47mA
VC-LFO (issue 3) 40mA
VCO Controller (issue 1) 20mA
Dual LFO (issue 1) 30mA

COTA (issue 2) 20mA
Croglin (issue 2) 25mA
Diode Super Ladder (issue 2) 35mA
Dicrete Ladder 904A (issue 2) 80mA
Journeyman (issue 2) 20mA
State Variable (issue 5) 30mA
Transistor Super Ladder (issue 3) 40mA

Comparator & Gate Delay (issue 2) 35mA
EFG (issue 6) 48mA
Fourmix (issue 1) 25mA
MidiDAC (issue 4) 40mA
Multmix (issue 5) 35mA
Noise/Filter (issue 4) 30mA
Sample/Slew (issue 5) 44mA
VRG (issue 2) 44mA

Dual VCA (issue 1 & 1.1) 26mA
Classic VCA (issue 1) 35mA

Equinoxe (issue 5) 40mA
Deep Equinoxe (issue 1) 45mA
Discontinuity (issue 3 & 3.1) 60mA-website / 50mA-build guide
Overdrive II (issue 1) 25mA
4014 Ring Modulator (issue 3) 40mA

ADSR/VCA (issue 3 & 4) 45mA
VC-ADSR (issue 1) 25mA
Very helpful. Thanks!!!
Is this thread still necessary? Modulargrid provides current draw.
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