Any information on a RCA CTC-39VA

[zeno]

Never seen one. Looks like an updated & common CTC38.
On CRT the 72-52 means 1972, 52nd month so set was built early
1973.
For tuning I will give you the most likely process, maybe
one of the RCA pros knows for sure.

Hook up box.
Press ch 2 button
Turn off any controls marked auto or accu.
Now the ch 2 control should tune from ch2-ch6 or ch2-ch13.
Usually ch 2 will be almost full CCW. Tune the knob CW till
you see a color picture. The knob can be turned many times.
The meter is marked for UHF but should also read VHF, you
can watch that to see how you are doing.

You are off to a good start, the CRT looks very strong.
Good luck

73 Zeno