Dale H. Cook ) writes:
On Tue, 18 Jan 2005 06:08:14 GMT, "COLIN LAMB"
wrote:

Years ago, I decided to convert one of my Millen tube jobs to a solid state
one

When I got done, the 2 highest bands were off calibration.

That's because the inter-electrode capacitance of the tube is part of
the tuned circuit.

I don't know if the poster was referring to it, but QST ran an article
in a December issue, I think 1972 but it might have been 1971, by someone
from Millen about their work on making a solid state version.

They used the same coil set and tuning capacitor, though I don't recall
if they changed the dial.

It was not a conversion article, not a construction article, but about
what they needed to do in order for the solid state version to put out
a flat output, with few false dips. It was interesting to read, at the
time.

Michael VE2BVW