Others > Biofeedback - EEG, ECG, EKG

EEG-SMT: Using 1 Channel only?

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Axel:
Hi,

I want to use 1 Channel only. Circuit diagram says, I should connect the unused channel inputs to V_REF. But, it is not easy to do this, is it?

Is it fine to connect to GND (ground, outer pin of plug), instead?

Best regards,
Axel

Kris:

--- Quote from: Axel on November 12, 2012, 08:37:14 AM ---Hi,

I want to use 1 Channel only. Circuit diagram says, I should connect the unused channel inputs to V_REF. But, it is not easy to do this, is it?

Is it fine to connect to GND (ground, outer pin of plug), instead?

Best regards,
Axel

--- End quote ---

I think you must connect the channel +/- to the drl, you can use a 3.5 splitter like these

http://www.amazon.com/3-5mm-Stereo-Female-Male-Adaptor/dp/B000I21Z4U/ref=sr_1_5?ie=UTF8&qid=1352753890&sr=8-5&keywords=3.5+splitter

Axel:
Hi Kris,

thank you for your advise. The 3.5 splitter is a great idea, I didn't know that such a thing exists!

Axel

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