Hey y'all. I Picked up this OR-80 last fall for an outrageously low price, all original early 70's 80 watt Orange. It's one of the ones with only graphics over the knobs. I'm not much of an expert on vintage orange stuff nor is there any decent and comprehensive guides that I can find on the web so I can't really tell you much more than that. Had it re-tubed and cleaned up, and it sounds KILLER. Not too loud, but I'm using it for trio gigs with a 1x15 and it's working out really well. It also gets some really awesome distortion going if you drive it hard. Looking forward to using it in the studio.
I'm wondering if anyone knows of any sites where I can get some info on old Orange stuff. I'd like to find out what it's worth and what the specs are on it.
Thanks!

Just graphics, no text. Turn up the fist!

Gets a little confusing. The first knob is a low mid cut, gradually cutting more the more you turn it up. The second knob turns
down the lows as you turn it up. The third turns up the treble. The fist seems to be a "presence" type control, and the speaker logo is the master volume. The jacks by the mountains seem to be effects send and return.

Funky ohm and power selectors

Orange Crest "Voice of the World"