Dear Don, (et al, of course),

?

You are going through a time very similar to my own

experiences. I was hot and heavy on HB QRO

tube-type amps, and built them one after another.

?

It was necessary to put RF aside for a while, and

now I’m struggling to get it on track.

?

One of my winter projects easy to handle is the

cleanup and refurbishment of a Heathkit SB-220

linear amplifier. Very little machining, a great deal

of cleanup, some soldering, some painting: It is

a wide-band project, and easy to pick up again after

being put away.

?

If you ever built Heathkits as a younger person and enjoyed

yourself, you will find that same enthusiasm once again,

but this time you have the Internet full of ideas, and all

your years of experience and maturity to apply.

?

Hal Mandel

W4HBM