So I have an old Hammond organ, nothing fancy but I love how it sounds. Anyways recently I noticed it has an output tucked away on it, all it says is 120 volts 60 hertz 2 amps. I can't find any info on this particular organ online. So would it be most likely a speaker out I should only use with a cab? I haven't opened it up yet but I assume it has some sort of amp built inside, maybe a tube amp as it's from the 70's. I have mic'd it before and it sounds amazing, it needs some repairs but it sounds great. Sadly the bass floor pedals often don't work, I need to check the wiring in the back soon... Anyways should I avoid plugging it into anything? I have a cheap old guitar amp I could test it on.