[Premium-Rx] WJ-8711A Main Tuning Encoder

[Gore, Greg]

Glenn,

Which encoder do you have, plastic shaft or metal shaft? The plastic shaft encoders were subject to wear if they weren't lubricated periodically which resulted in a really sloppy fit. I have one here that was so bad the tuning knob rubbed hard on the front panel and wore through the paint. There was a service bulletin which explained the reason for plastic shaft encoders was to correct a noise issue. As far as I know the plastic shaft encoders were special parts and are no longer obtainable except from another receiver. The original metal shaft encoders are still available. Tuning knobs are different for each type, plastic shaft used a push on type mounting with a flat side while the metal shaft knobs used round with set screws.

Greg;
WA1KBQ



Sent from my Verizon, Samsung Galaxy smartphone


-------- Original message --------
From: fintronics <fintronicsusa at gmail.com>
Date: 5/7/19 7:50 AM (GMT-05:00)
To: premium-rx at mailman.qth.net
Subject: [Premium-Rx] WJ-8711A Main Tuning Encoder

Hello;

This has probably been covered before but I can't seem to find it in the
archives.

I have a 8711A that has a slight wobble on the main tuning knob/encoder. I
actually have two with the same condition as well as an 8718. It's by no
means objectionable and you don't feel it when you're tuning around. Is
there some way to tighten this up? Is it the encoder? front panel
bushing?.. don't know.. I remember reading that there are different types
of encoders for these but not sure the difference. If it is in fact the
encoder, can it be re-built? Are there replacements available? (doubtful).

Any help or suggestions would be greatly appreciated.

Thank you.

Glenn W2BX
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