[Boatanchors] January's Puzzle

[Brian Harris]

Here is an opportunity for you to put on your thinking/memory caps.  I suspect I 
might stump you but hopefully that won't be the case.

I have a surplus VFO and I would like to know to what it belongs.

Here are some clues:

1.  It has two tubes, a 6SJ7 oscillator and a 6SK7 buffer
2.  The oscillator runs from 1.0 to 2.5 Mc (yes, Megacycles)
3.  The two tubes sit between two enclosures that mount on a common chassis
4.  The chassis has provisions for shock mounts
5.  The buffer acts as a doubler, putting out 2 to 5 Mc (did I say Megacycles?)
6.  Power connections to the unit are on the left hand side
7.  RF connections to the unit are on the right hand side
8.  The L/C components for the oscillator and the buffer are inside the two 
compartments
9.  There is a clever temperature compensation capacitor in the oscillator 
compartment
10. It requires 6.3VAC, 100VDC (oscillator) and 150V (buffer).  Don't ask me how 
I determined these voltages but it works with them.
11. It has a two digit mechanical turns counter that, I guess, runs from 00 to 
99 (it's stuck which is why I am guessing)
12. The assembly is 11.5" long (not counting the knob that protrudes out the 
front), 6" wide and 7-1/4" tall
13.  The oscillator is extremely stable

A picture of it can be seen at the end of my pictures at the website below.

Brian Harris, WA5UEK
phone 214-763-5977
email cosmophone at yahoo.com
website www.myhamshack.com/wa5uek


When they call the roll in the Senate, the Senators do not know whether to 
answer "present" or "not guilty."  Theodore Roosevelt