I've got a Pearl Drum X sitting around that I thought I'd try triggering from euro.
Anyone have a rule of thumb for safe input voltages on drum brain input circuits?
Wondering if I need to pad or current limit.
Trigger input voltage tolerance on external drum modules
Moderators: Kent, luketeaford, Joe., lisa
Re: Trigger input voltage tolerance on external drum modules
Found a schematic online for the Drum X specifically.
Looks like +/-8 volt rails and the trigger feeds the opamp input directly, so probably a bad idea to do this without attenuation or protection.
Not sure about other drum brains with trig ins in general.
Looks like +/-8 volt rails and the trigger feeds the opamp input directly, so probably a bad idea to do this without attenuation or protection.
Not sure about other drum brains with trig ins in general.
Re: Trigger input voltage tolerance on external drum modules
Usually all Digital Trigger should have a response in the 5V range. The op-amp input may have a tolerance of +-0.5V above Vcc and below -Vcc but if your machine is 8V a modular trigger of 10V may damage it.
Many Trigger input circuit designs have some kind of protection diodes for this purpose but usually you can´t take the chance. If you have an attenuator for this purpose use it.
Many Trigger input circuit designs have some kind of protection diodes for this purpose but usually you can´t take the chance. If you have an attenuator for this purpose use it.