[Collins] Reluctant filter switch on 51J-4 - Solutions?

[Chris Kepus]

I appreciate the feedback I have received on my reluctant filter switch. The
net of the feedback is that the filter switch tends to be a stiff but that
it wouldn't hurt to apply some lube to the concentric shafts and to check
for binding. 

Thanks to all and to all, have a very Happy New Year!!
Chris
W7JPG

-----Original Message-----
From: Wn4i [mailto:wn4i at arrl.net] 
Sent: Sunday, December 25, 2005 4:31 PM
To: Chris Kepus; collins at mailman.qth.net
Subject: Re: [Collins] Reluctant filter switch on 51J-4 - Solutions?


  Never in my life ......I remember working for Motorola using a 51J4 back 
in the 1970-1980 every days as a frequency meter ( recalibrated on  every 
bands )  with no Problems whatsoever ...in order to recalibrate  two way 
Radios for polices , fires , ambulances and taxi driver ....At the time a 
frequency meter was over $ 50.000
  Never had any problems as you describe ....but yes  the switch needed a 
clean every years only after many years of uses .

  73
  Yves Wn4i .....mine is still for sale ...make me an offer ?







  ----- Original Message ----- 
  From: "Chris Kepus" <ckepus at comcast.net>
  To: <collins at mailman.qth.net>
  Sent: Sunday, December 18, 2005 8:24 PM
  Subject: [Collins] Reluctant filter switch on 51J-4 - Solutions?


  > My 51J-4 plays and works very nicely with a few odd exceptions: 
(previously
  > noted on this list) but the one thing that now concerns me most is the
  > amount of effort that it takes to switch from one filter position to the
  > next.  It seems like that small switch lever behind the knob is about to
  > bend or break every time it finally moves to the next position 
(regardless
  > of rotational direction).  Out of concern that the lever might break, I 
have
  > stopped using the switch until I have time to pull the unit out of the 
rack
  > and examine it.  Is this rotational resistance just one of the switch's
  > characteristics...or ???.  For those of you who use a 51J-4, is it 
"easy" to
  > change filter positions using your filter switch lever or do you feel 
like
  > the lever is about to bend or break each time you use it? If the normal
  > state of affairs is a switch on which the positions can be easily 
changed,
  > does anyone have an idea of where I should look for a problem with my 
switch
  > mechanism?  If anyone has successfully corrected a similar problem, 
would
  > you be kind enough to share your method?
  >
  > Thanks, 73, Merry Christmas, Happy Honnuka, and Seasons greetings to 
all!!
  > Chris
  > W7JPG
  >
  >
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