[Harp-L] Amp help?

["steve@xxxxxxxxxxxx" <swebb@xxxxxxxxxxx>]

I need some help from one of you amp gurus out there. I have an old Fender Champ that a harp-playing friend is interested in buying.  Long story short, the tubes have been mucked about and I'm not sure which tubes go where. 
Here's what I have: from left to right looking at the amp from the back..
an old RCA tube that says 5y3 and below that it says GT
then a 6v6GT (made in Russia)  and then at the far right, a 12ax7.
The 12ax7 is obviously in the right place, but I'm not sure if the others are in the proper place.
can anyone shed some light on this?
It has a Weber Speaker that I put in awhile back, but I have'nt played it in a long time. It does play with tube sin the order shown above, but it doesn't seem to have the bottom that i remember. 
I'd like to sell it, but I don't want to pass it on to this friend if it isn't right.
Thanks in advance for any help.
Steve Webb in Minnesota