[Johnson] [Boatanchors] Johnson Ranger VFO Access Question

Carl km1h at jeremy.mv.com
Sun Dec 29 13:49:03 EST 2013


I use the same tub of Wolfs Head wheel bearing grease I bought maybe 40 
years ago for repacking most ball and needle bearings. Exceptions were in 
high performance automotive transmissions.

Carl
KM1H


----- Original Message ----- 
From: <WQ9E at btsnetworks.net>
To: <km1h at jeremy.mv.com>; <whitebear1122 at comcast.net>; 
<johnson at mailman.qth.net>
Sent: Sunday, December 29, 2013 11:29 AM
Subject: Re: [Johnson] [Boatanchors] Johnson Ranger VFO Access Question


Carl,

I have been using the red Mobil 1 synthetic grease (same stuff I use for my 
pickup and tractor) for many years in the Johnson reduction drives and it 
seems to work fine.  For a high torque application you would probably need a 
special grease.  I imagine the original Johnson stuff is just run of the 
mill petroleum based.

Rodger WQ9E

-------- Original Message --------
> From: "Carl" <km1h at jeremy.mv.com>
> Sent: Sunday, December 29, 2013 10:00 AM
> To: "Whitebear1122" <whitebear1122 at comcast.net>, "boatanchors" 
> <boatanchors at mailman.qth.net>, <johnson at mailman.qth.net>
> Subject: Re: [Johnson] [Boatanchors] Johnson Ranger VFO Access Question
>
> Be careful when working with verniers Scott. Many work by using the 
> friction
> of the grease to provide sufficient torque. Flushing that out and going to 
> a
> synthetic may limit its performance; ask me how I know...but it wasnt in a
> Johnson!
>
> Ive had better results with a 6AH6 VFO tube in most all 6AU6 VFO's of all
> brands. Depending upon the circuit the plate and screens use zeners of 
> lower
> voltages that still allows a surplus of drive on 10M. The result is less
> drift and chirp.
>
> Carl
> KM1H
>




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