OK re. the wire as a pickup. Cool.
I have some Lithium grease. OK on ... "A little dab will do ya!"
:-)? David KD4E
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On 1/27/25 14:29, Steve Wedge, W1ES/4 via groups.io wrote:
David,
The loose wire is from the calibrator -- it's a short antenna to couple in with the receive input.
I've never seen rust on these bearings. I would try some light lithium grease. I'm reluctant to suggest WD-40 because I'm not sure how the plastic would react. A little should go a long way.
73,
Steve Wedge, W1ES
Time flies like an arrow.? Fruit flies like a banana.
Sent with Proton Mail secure email.
On Monday, January 27th, 2025 at 1:19 PM, DavidC KD4E via groups.io <qrv@...> wrote:
Looking over the TR-4 it appears generally clean, but I spotted
a loose wire (see the yellow wire looped over the switch wafer in
Image 8) here ... and
rust on the ball bearings in Image 10.
I received second-hand information that this rig was 'gone through'
by Ron, KB4HFN, several years ago - perhaps the disconnected wire
was part of a mod of some sort?
(The rig has been in non-climate controlled storage, by the Ham from
whom I received it, for about three years. It's unclear how long it may
have sat unused prior to that. It was tested on 10m prior to the swap.
He chose 10m because all of his other antennas were damaged or
destroyed by a hurricane a few months back.)
Thanks,
David KD4E
DavidC KD4E