|[AMRadio] Question about HQ-180|
hbrnut at suddenlink.net
Mon Sep 11 09:55:28 EDT 2017
Hammarlund originally placed a plastic dust cover over the capacitors.
They discovered that removing it improved stability so stopped using it.
They also recommended that it be removed from receivers that had it.
On 9/10/2017 8:16 PM, Steve Wender wrote:
> Hi All,
> I am about done bringing an HQ-180 back to life. Because there seemed
> to be several versions on the alignment procedure, it took a while to
> figure it out.
> The question I have is about whether the two variable caps for the
> main tuning and bandspread are shielded. I have seen some pictures
> showing what looks like an aluminum box over them. In fact there is a
> bolt sticking up from the caps that can be used to hold down the
> shield covers. Do you think these are necessary? My HQ-180 doesn't
> have them. Any opinions?
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