[Hammarlund] chris-hq-180

Mon, 8 Sep 2003 01:44:38 -0400

The manual for my HQ-180AC is about 80 pages, it is marked Issue 2 printed
1968.

Don't know what is in the extra pages as this is the only one I have.

Mike Tallent  W6MXV  in KY

----- Original Message ----- 
From: "Mike Taylor" <[email protected]>
To: <[email protected]>
Sent: Sunday, September 07, 2003 11:36 PM
Subject: [Hammarlund] chris-hq-180

> Chris, my HQ-180 manual is 23 pages. I've never heard of an 80 page manual
> for this rig. You're correct about that epoxy smothered cap. Doesn't jive
> with my schematic either. Does your HQ-180 have the factory installed
> veriner tuning on the front panel, with the slot depth control just under
> and to the right of the top lid? If so, the slot depth has to be properly
> nulled. Otherwise, the slot frequency control won't do much of anything.
> Also check the slot frequency coil. It's adjustment works in tandem with
the
> slot frequency control. On page 11 it's labeled "L2" in the photo. Page 14
> mentions alignment of "L2", but the parts list and schematic both call
this
> coil "L3". Obviously someone was asleep at the switch that day. "L3" is a
> fixed value and not adustable. Anyway, check for damage or cold solder
> joints on both coils, and of course on the two controls themselves. Sounds
> like you've got one of those, "I don't know so I'll get rid of it and make
> it someone else's problem" kind of rig. Since you've already found some
> incorrect wiring, it's possible you'll find some more. You have your work
> cut out for you. Parts are available and I'm sure others in the group will
> offer some help. You're also right about the HQ-180's performance.
Alignment
> is a pain on band six but dial readout is excellent and the thing is
> sensitive and selective as heck. If you like front-end overload and
> "birdies", use one of those whiz-bang digital things being offered these
> days. Good luck... Mike.
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