GND CTRL by Steady State Fate - now shipping!

Cwejman, Doepfer, Erica, MakeNoise, Mutable Instruments, TipTop Audio, Analogue Solutions, and much more! The world’s most popular format.
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analogPedagog
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GND CTRL by Steady State Fate - now shipping!

Post by analogPedagog »

Steady State Fate is pleased to announce GND CTRL (Ground Control), a novel compact utility for your modular system.
GND CTRL features seven gain presets for bridging a wide range of signal and control voltages for your audio and video systems. GND CTRL also provides these commonly used utility functions:
Attenuator, Inverter, Multiple, full scale DC Bias and Bipolar Clipping Indicator.
Last but not least, GND CTRL is a dual mode OLED Voltage Meter! The Voltmeter can display bipolar voltages as a needle/bar display or numerically. The voltmeter is normaled to the CV processor so you can measure your changes with instant feedback.
Additionally, a dedicated Voltmeter input is available for non-destructive voltage metering on the fly.
Look for GND CTRL at your favorite shops in March 2013!

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Last edited by analogPedagog on Mon Apr 29, 2013 2:28 pm, edited 2 times in total.
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numan7
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Post by numan7 »

:tu: looks like a very, very useful module, analogPedagog/SSF!

is the PRESET knob a rotary switch? hmm I'll bet that a 1.2 (or whatever the buchla volts per octave standard is) would come in handy.

how bright is the oled display for the needle-graph meter (will it be visible in dim light or dark settings)?

cheers
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analogPedagog
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Post by analogPedagog »

numan7 wrote::tu: looks like a very, very useful module, analogPedagog/SSF!

is the PRESET knob a rotary switch? hmm I'll bet that a 1.2 (or whatever the buchla volts per octave standard is) would come in handy.

how bright is the oled display for the needle-graph meter (will it be visible in dim light or dark settings)?

cheers
Yes, the PRESET control is a rotary switch.
The OLED display is very high contrast and visible in the dark, yet very soft on the eyes. The average current draw of the display is about 20-25mA. The display can be shut down when not in use too! :bacon:
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ringstone
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Post by ringstone »

Looks pretty cool. BTW Mjr Tm will be very happy...

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skipperdean
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Post by skipperdean »

another brilliant realization, thank you for your contributions to this community!
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John Noble
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Post by John Noble »

:sb:

http://eurorackdb.com/node/1595

Depth and current data are always welcome: john ]at[ eurorackdb.com
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LNR
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Post by LNR »

it seems really nice and useful. Well done
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DonKartofflo
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Post by DonKartofflo »

Always nice to see modules that go beyond what you could think of!
Sometimes things just need to move a bit.
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JRock
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Post by JRock »

That's a nice module you got there :tu:
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matttech
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Post by matttech »

from the title i thought it was going to be a module for correctly earthing cases...... :hihi:
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norbwuertz
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Post by norbwuertz »

looks as if it would be a usefull module to have.

Is the voltmeter acurate enough to callibrate VCOs?


how much :75: ?
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Low-Gain
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Post by Low-Gain »

Very excited for this! :)
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madcap
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Post by madcap »

seems cool. What does the stabilizer pot do?
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Post by sempervirent »

Nice job on the panel design, I like the nod to NASA with the typeface in the upper right.
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Paranormal Patroler
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Post by Paranormal Patroler »

This looks fairly interesting. Most complex utility module yet?
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analogPedagog
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Post by analogPedagog »

madcap wrote:seems cool. What does the stabilizer pot do?
For low frequencies, the voltage meter emulates an analog needle meter. For audio and ultra sonic frequencies, the voltage is displayed as a solid bar like shown in the picture. When approaching low audio rate, the needle display will appear to be oscillating and difficult to read in some cases. Turning up the stabilizer will solidify the quickly bouncing needle display into a bar. Same for when in numerical mode but will settle on the max and min voltages. The stabilizer is also used for very very slow signals and some in the ultra sonic range.
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Post by osterchrisi »

Can't wait to see 'Major Tom' released :hihi:
From what I've seen on NAMM the OLED display is one of the most beautiful eye candies I've ever seen (especially in eurorack).
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Post by analogPedagog »

norbwuertz wrote:looks as if it would be a usefull module to have.

Is the voltmeter acurate enough to callibrate VCOs?


how much :75: ?
OK, so I did some tests with GND CTRL's meter and my Fluke meter. The absolute highest accuracy for GND CTRL's meter in numerical mode is +/- ~20mV
But due to component variations/tolerances, most likely very few will be this accurate. testing the prototype, GND CTRL was never more than ~40mV off of the fluke reading. This is probably too much of a variance for getting super accurate with VCO calibration by voltage reading alone. In other words you would need your ears as well :bacon:

Still working on a price. . .
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MR-808
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Post by MR-808 »

Not as cool as Ground Kontrol.
Last module completed: Jürgen Haible Tau Pipe Phaser
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Post by waifl »

paging major tom.

sorry. :omg:
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Post by tektoktiktak »

classy shit!

:tu:
http://www.koma-elektronik.com

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Post by analogPedagog »

:party:
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Post by analogPedagog »

GND CTRL update:

Just finished a few minor tweaks to the design - GND CTRL is now in production! Look for this all-in-one utility/VU meter and voltage bridge in late April/early May!

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Matos
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Post by Matos »

sweet! logo loving!
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READYdot
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Post by READYdot »

Brilliant! Now I'll have a sticker, T-shirt, two modules and an O-Led dispaly with the SSF logo on it! I'm a fanboy!
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