[R-390] Hammarlund HQ 180 tubes and info needed

[Perry Sandeen]

Yo Bubba Dudes!,
I won a bid for what was supposed to be the *C* model but when it arrived it was the original HQ 180 model. However is was clean, the price was low, so no probemo.

I do have the 180 ski which I'm in the process of digitizing. In the HQ-180 manual I D/L'd there were several other ski's as well, one being for the *A* version.

>From the *A* ski I see that the later models dropped the 5U4 for SS diodes.  My problem is that I don't know what the changes were made to create the *C* version. The only *C* ski I could find was on the BAMA site and it is in the Dijivu format.
So my questions are:
Could someone send me info on the differences between the 180 and the *C*?
Could someone send me or point me to where I could D/L the *C* ski?

I have all the tubes needed for a complete replacement EXCEPT the strange (to me) 6BV8.
I would like to trade NOS tube I have for, if possible, five 6BV8's.  I could do cash or cash-trade as well.
Please reply off list if you could help me out.
Regards,
Perrier