Dan/W4NTI wrote:

Oh yes indeed......remember how you could change the frequency of those
FT-243 rocks? Carefully take them apart and apply a thin layer of pencil
lead. Don't remember....did that raise or lower the freq? Another
technique was to drilll a hole in the face of the rock. Put a metal screw
in it and adjust the tension on the quartz via the spring that was inside.

Ah the good ole days.

Yeah right.

But I'll bet you had a blast, didn't ya?

- Mike KB3EIA -