Sorry if this should be in GG&A, but I wanted to see if there was a pedal that could produce a pretty faithful 6505 tone. For hypothetical's sake, I'm playing into a Jet City JCA100H. Thanks guys.
In a word no. 5150's are fairly cheap. That is the best way to get that tone.
You can usually find a used 5150 combo for like $400-ish if you look around locally. Or even head to Ebay.
perhaps getting an OD pedal would be a good idea? Something like a Maxon 808 to boost your dirty channel on the jet city amp?