OR80 Head

[1west]

I purchased an original OR80. What is the pot on the back that acts like a power brake? Can some one let me know where to get a manual. Thanks!

Update: Your right! It must be a mod. Can someone identify this mod. pics are included
<img src="http://img.villagephotos.com/p/2004-5/723730/103.jpg" border=0>
<img src="http://img.villagephotos.com/p/2004-5/723730/102.jpg" border=0>

Edited by - 1west on 13 May 2004 06:04:44

[bclaire]

umm... there is no pot on the back that acts like a power brake. If you have a knob on the back, it's probably a master volume circuit that someone has added later on.

On the back of the amp there should be a voltage selctor and an impedance selector only.

Billy

[1west]

Thanks for the feedback. My OR-80 is a 1972 original. 1 Owner. The pot on the back came from the factory. As you turn it left, the volume decreases and the distortion increases. All the way to the right you get full volume and a cleaner sound.

[RSmith]

****



Edited by - Rsmith on 11 May 2004 19:13:46

[RSmith]

From which hole is the pot coming out off, you aren’t by any chance changing the input voltage setting, because god only knows what that will do to your transformer, valves, basically your amp!

<img src="http://geocities.com/n0nym0us/OFG_OR120 ... pxback.jpg" border=0>

[bclaire]

<BLOCKQUOTE id=quote><font size=1 face="Verdana, Arial, Helvetica" id=quote>quote:<hr height=1 noshade id=quote>
Thanks for the feedback. My OR-80 is a 1972 original. 1 Owner. The pot on the back came from the factory. As you turn it left, the volume decreases and the distortion increases. All the way to the right you get full volume and a cleaner sound.


<hr height=1 noshade id=quote></BLOCKQUOTE id=quote></font id=quote><font face="Verdana, Arial, Helvetica" size=2 id=quote>

Orange never put a pot on the back of their amps like you describe. This is definitely a mod.



Edited by - bclaire on 11 May 2004 19:25:15

[User]

If you think about it 1west, why would orange put a pot on the back that changes the sound like that? They would stick it right on the front where it should be!
The person who’s modified it has not wanted to wreck the looks on the front, so they stuck it in the back, more than likely where there should have been a slave out.

There’s a test! Has yours got a slave out on the back?

If not then 100% it’s a mod
If so, either:
A good mod
Your correct!

And I think I would be more than likely a good mod!


Dave

[1west]

Thanks for all the feedback. I will be attaching a pic a little later. That should solve the confusion.

[User]

hi, just tryed to see your pictures, and they have an address to your d drive.
you cant post pictures like that you need to post them on a web page then link to that.
go on somethink like (i think its called) picturedumb, or somethink like that, and link from there!

Dave
[Praying heavenward]
I'm not normally a religious man, but if you're up there, save me, Superman!