+5v gate in

[KidQuaalude]

Hi,

I should be receiving a tr606 soon and I am planning to feed its audio inputs with the +5v tom triggers from the tr606 (to trigger arps or drum synths)

My question is - am I going to do damage to the Micromodular doing this? Is +5v too heavy a signal to send to the audio ins or is is quite safe?

Any advice would be greatly appreciated.

Cheers.

[Top Top]

I don't know if you are still trying this (a couple months ago now), but if I were you, I would build a simple attenuator with a pot to send an adjustable amount of the voltage to ground - this is the same type of control used on many FX pedals to adjust the volume at the end of the circuit.

So it would be like: drum machine trigger -> pot -> NM input

Here's a schem for the type of circuit I am talking about:


The arrow is the center leg on the pot. I would use a 100k pot, but 10k would probably work too. The other two are the outer legs on the pot. + indicates your trigger, and - represents ground.

Turn the pot down all the way, get your triggers going, and slowly turn it up until you see it start to register in the NM. Use the audio input meter to see when it gets near clipping.

I don't actually think that 5V transients should be enough to burn out an input on the NM. I have generated oscillator signals from logic ICs like 40106, which generate over +5v in their pulses, and never burned out an input channel on anything by connecting them to mixers, amps, etc, BUT I would be careful too, it's best to be safe and not burn out those very useful audio inputs.