Input Signal to Preamp

[Phrazemaster]

I know this is probably painfully obvious to those that know, but I'm trying to callibrate a preamp (green) and the setup says I need to input a 200mHz signal. I have a signal generator, and my question is, do I connect both leads to the 2 inputs of the mic preamp inputs? Or just pick one lead and use the other at ground?

My understanding is it's a balanced input on the Green pre, so I would tend to think I should just hook one input wire to the signal generator and then put the other signal generator wire to ground...

When I tried hooking up both leads to the inputs...the signal generator died! I mean, there was a spark at the wire and then I wasn't getting any input signal, and the signal generator gave up the ghost! I really don't understand why that happened...Have a new signal generator on the way via ebay...I really don't want to damage it!

Any input from anyone?

Thanks,

Mike

PS technically this should be in the green pre meta, but that thread is dead.

 

[abechap024]

bummer! did you by chance have phantom power on?

 

[Nora]

Probably not why it died but I'm sure you need 200Hz, not 200mHz?

Even if the green pre's inputs are short, a decent signal generator should be able to protect itself from being overloaded.
Have you checked for fuses/burnt resistors in the output?

 

[Walrus]

Maybe it's a new variant for amplifying tectonic plate movements!  ;D