Testing trigger functionw/o brain

[boobus]

Ok, so I just finished a prototype for a Roland-style undermounted cone trigger. The pics you see is the trigger bracket and the mono phone jack it's soldered to. I have since bought and adhered a Roland trigger cone to the piezo.

My question is... I have yet to buy a brain. Is there a way to test the connections to see if the trigger sends a signal to the phone jack without a brain? I tried a digital volt meter but didn't get anything...

?

[boobus]

ok, i think i may have figured it out. i put my millilvolt meter on DC V 2000m and got a reading when tapping the trigger. anyone wish to verify this is real or unreal voltage?

sorry for the bother post.

[rhjanes]

I've not done it, but it sounds like it is working.....

[jrfrond]

One quick way to check a trigger is to plug it into a guitar amp, keyboard amp, etc. and just listen to the response. You can actually get a fairly good idea of how well it will trigger by listening to the pulse output at all dynamic levels.

[weaslle1204]

take it to a music store and plug her in, that way you can show your new drum.

[jrfrond]

After taking a look at your pix, I would highly suggest that you use miniature shielded cable for your run from the trigger to the jack, or AT THE VERY LEAST, twisted-pair wire. Piezo triggers essentially look like an open load in a circuit, making the wiring susceptible to interference from outside sources, which can potential cause false triggering in some applications. Nice mechanical work though.