[Hallicrafters] hammarlund hq-180a

[Rodney Bunt]

One or both of two things...

1. A short between the plates, a small particle of metal growing between the palates (crystal of
metal) use soft brush and contact cleaner, or compressed air th "low out" such dentrites.

2. Bad contact between the moving vanes and earth, there is a "slip ring" and metal fingers
between the moving vane and the frame of the capacitor (earth) tension up the fingers, clean the
slip ring surface.

This assumes that the cap shaft is not mass aligned/ loose in its mountings.

Rodney
VK2KTZ

--- DAN COTSIRILOS <dcsfree at worldnet.att.net> wrote:
> Hello guys! I got a hq-180A that the tuning goes dead on all the bands about
> 1/3 of the tuning band on the low end! on all bands it makes a crackle noise
> (at the very same place) as I am tuning downward and then the signal drops
> off the table. any ideas? it is probably the same solution for a Hammer as
> for a Hali.  Dan
> ----- Original Message -----
> From: "pato" <folanosr at bellsouth.net>
> To: "John Page" <k4kwm at hotmail.com>
> Cc: <hallicrafters at mailman.qth.net>
> Sent: Saturday, July 05, 2003 6:20 PM
> Subject: Re: [Hallicrafters] SX=28
> 
> 
> > John: Good idea, But did not have 2"X4". By now the tube
> > (5Z3) and others are broken. Will be more careful in the
> > future.
> > Thanks, Frank WB4EHB
> > PS. Had a 4"X4" but had grease from auto repairs. Home Depot
> > 40 miles away.
> >
> > _______________________________________________
> > List Administrator: Duane Fischer, W8DBF **for assistance**
> > dfischer at usol.com
> > ----
> > Hallicrafters Collectors International: http://www.w9wze.org
> > ----
> > http://mailman.qth.net/mailman/listinfo/hallicrafters
> >
> 
> 
> _______________________________________________
> List Administrator: Duane Fischer, W8DBF **for assistance**
> dfischer at usol.com
> ----
> Hallicrafters Collectors International: http://www.w9wze.org
> ----
> http://mailman.qth.net/mailman/listinfo/hallicrafters


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