[Hammarlund] Old Hammarlunds

[Kenneth G. Gordon]

On 12 Apr 2011 at 16:04, Carl wrote:

> Unless you completely dissamble the coil box and thoroughly degunk the
> pins as well as restore the fixed contacts to shiny silver they will
> never be stable, that holds for the complete family to the NC-240D.
> Also some of those old TC caps are junk after 50-60+ years of
> absorbing moisture (as in the Collins PTO) plus the ceramic trimmers
> dont age well which is also a problem in the early HQ's where I
> replace with Johnson submini air variables. Havent got to that point
> with the SP-400 yet.

Neat info, Carl. Thanks...for when I can get that NC-240D I've always 
wanted.

> > I bet you'll like the 400 once you bring it online. It makes a big
> > difference when you have an example running up to spec vs. a tired
> > version needing a recap, alignment, and all the rest.
> 
> As with all BA's. The HQ-120/129 in particular get a lot of bad press
> from those who havent a clue what they are doing or what to expect.

I have a one-owner, never-messed-with, original-knobs, beat-up HQ-129X 
which is also on the list to be restored...I was traded it for a repair job on a 
satellite TV system about 15 years ago.

I lusted after one of those when I was a kid, too.

Those original knobs are PsOS, by the way.

Ken W7EKB