[R-390] Antenna trimmer

[Larry H]

Hi  Francesco,  Glad you are making progress on your A.

When the Ant Trim knob is straight up, the cap should be at it's 1/2 way
point.  There was a discussion about the pin on Wed, Jun 20, 2018, 4:20
AM.  Take a look.

Regards, Larry



On Wed, Apr 10, 2019 at 11:02 PM fdigio1 <fdigio1 at gmail.com> wrote:

> Hi guys, the restoration of my R-390A goes on. All the missing screws,
> lock and flat washer are on their position. All of wrong type are been
> replaced with the correct one, even the missing green screws. Every RF deck
> gear is cleaned and lubed. I have some issues with the antenna trimmer. 1)
> the red dot is vanished. Which is the right alignment? Full, minimum, half
> capacitance? 2)I suspect it is contaminated by oil or grease. I tried to
> remove its cover from the bottom, but the 3 wires are too short to let me
> expose the dual section variable capacitor and their solders to the rotary
> switch are difficult to reach.I could remove the worm gear on top, but I am
> unsure in which direction to push the pin. Any idea? Best regards,
> Francesco - IN3XZP Inviato da smartphone Samsung Galaxy.
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