[criageek]

No, I don't see a vertical channel output.  There is a BNC connector on the back but says it's for a Z axis input.  This is a Tektronix 2215 that I bought new when I was working in a test equipment cal and repair lab and the Tektronix rep gave me a little bit of a break on it.  I had our scope guy calibrate it, but that was in 1983  lol.  Now I wonder how accurate it is.  It looked like the level was reasonable on pin 4 of the 7F8 so I connected the frequency counter there and came up with a range of 934kHz - 2086kHz.  That seems pretty reasonable to me.  I'll check it again, this time connecting both the scope and the counter to pin 4 and see how my calculations compare to the reading.  Is it possible one or the other causes the frequency to skew when connected?  I wouldn't think so.

I checked over all the wiring I messed with when I pulled the tuner sub-chassis and the pushbuttons out and everything checks out right, so now I'm stuck again.  I'll probably go over the wiring again just to be sure.  I think I'll go ahead and get a 7F8 ordered.  Are there any other tubes you'd recommend I get while I'm ordering?  Might as well save on shipping.

Thanks for your help...I appreciate it  ;)

Rich