1 Jul
2004
1 Jul
'04
9:47 a.m.
In the not too distant future I should be starting my 11/45 restoration
project. In anticipation of that....
My 11/45 front panel has a number of switches that dont work. The normal
failure mode of the switch covers breaking is not the case here. My problem
is the actual switches on the PCA under the switch covers. They have
disintegrated the way I've seen C&K switches do before. I went looking for
C&K switches a long while back for an unrelated project and had trouble
finding them.
I could just locate a whole new front panel, but those get a huge premium on
ebay. I'd just rather find the switches and solder new ones in place. Does
anyone know exactly what switch the 45 uses, and where a source for them
might be?
Thanks in advance,
Jay West
---
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1 Jul
1 Jul
10:19 a.m.
>>>> "Jay" == Jay West
<jwest(a)classiccmp.org> writes:
Jay> In the not too distant future I should be starting my 11/45
Jay> restoration project. In anticipation of that....
Jay> My 11/45 front panel has a number of switches that dont
Jay> work. The normal failure mode of the switch covers breaking is
Jay> not the case here. My problem is the actual switches on the PCA
Jay> under the switch covers. They have disintegrated the way I've
Jay> seen C&K switches do before. I went looking for C&K switches a
Jay> long while back for an unrelated project and had trouble finding
Jay> them.
Jay> I could just locate a whole new front panel, but those get a
Jay> huge premium on ebay. I'd just rather find the switches and
Jay> solder new ones in place. Does anyone know exactly what switch
Jay> the 45 uses, and where a source for them might be?
They look like ordinary miniature toggle switches, with a toggle whose
size adequately matches the size of the hole in the switch handle.
Chances are pretty much any switch that size from Radio Shack or the
like will do just as well. You may need to do some mechanical magic
to attach the clips that hold the plastic switch handles onto the
toggle switch body.
paul
11:02 a.m.
At 03:19 PM 7/1/2004 -0400, you wrote:
Yep, the switch has the clip/backet which holds the large plastic toggle
attached to it. The markings on an original switch are: 7121 C&K 0.4VA MAX.
--tom
>>>> "Jay" == Jay West <jwest(a)classiccmp.org> writes:
Jay> In the not too distant future I should be starting my 11/45
Jay> restoration project. In anticipation of that....
Jay> My 11/45 front panel has a number of switches that dont
Jay> work. The normal failure mode of the switch covers breaking is
Jay> not the case here. My problem is the actual switches on the PCA
Jay> under the switch covers. They have disintegrated the way I've
Jay> seen C&K switches do before. I went looking for C&K switches a
Jay> long while back for an unrelated project and had trouble finding
Jay> them.
Jay> I could just locate a whole new front panel, but those get a
Jay> huge premium on ebay. I'd just rather find the switches and
Jay> solder new ones in place. Does anyone know exactly what switch
Jay> the 45 uses, and where a source for them might be?
They look like ordinary miniature toggle switches, with a toggle whose
size adequately matches the size of the hole in the switch handle.
Chances are pretty much any switch that size from Radio Shack or the
like will do just as well. You may need to do some mechanical magic
to attach the clips that hold the plastic switch handles onto the
toggle switch body.
paul
3:22 p.m.
Paul wrote...
You may need to do some mechanical magic
to attach the clips that hold the plastic switch handles onto the
toggle switch body.
Ok, can the switches be removed, and new switches bought and installed,
while retaining the clips? Or, are the clips to attach the plastic handles
"built into the switch"?
Jay
5:02 p.m.
At 07:22 PM 7/1/2004 -0500, Jay West wrote:
Paul wrote...
The clip is integral to the switch assembly.
--tom
You may need to do some mechanical magic
to attach the clips that hold the plastic switch handles onto the
toggle switch body.
Ok, can the switches be removed, and new switches bought and installed,
while retaining the clips? Or, are the clips to attach the plastic handles
"built into the switch"?
Jay 
6:43 p.m.
Ok, then if these switches can't be bought
commercially still, add a dead
front panel board for a /40, /45, or /70 to my recently posted "wanted list"
If the switch is like the ones I am thinking of, they are actually pretty
common on junk boards - you will just have to be careful when persuading
the clip to let go of the handle. Then you get to be double extra careful
getting the DEChandle back on without breaking it.
I may have some in my hamfest stock - I will look.
William Donzelli
aw288(a)osfn.org
9:21 p.m.
On Thu, Jul 01, 2004 at 09:09:05PM -0500, Jay West wrote:
Tom wrote...
I'd be in for a dead /70 front panel myself, but so that I could repair it
and mount it on an 11/70 that only has the RDM console (which is *boring*)
-ethan
--
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Ethan.Dicks(a)amanda.spole.gov http://penguincentral.com/penguincentral.html
The clip is integral to the switch assembly.
Ok, then if these switches can't be bought commercially still, add a dead
front panel board for a /40, /45, or /70 to my recently posted "wanted list"
:)
2 Jul
2 Jul
4:19 a.m.
>>>> "Jay" == Jay West
<jwest(a)classiccmp.org> writes:
Jay> Tom wrote...
> The clip is integral to the switch assembly.
Jay> Ok, then if these switches can't be bought commercially still,
Jay> add a dead front panel board for a /40, /45, or /70 to my
Jay> recently posted "wanted list" :)
One good question is: when you said that the innards of the switches
had "disintegrated" -- exactly what had happened? There's very little
variation in how those things are constructed inside. You may be able
to find new switches of the same size, rip out the old guts, and
replace them by new guts taken from the new switches.
paul
9:01 a.m.
On Fri, 2004-07-02 at 06:19, Paul Koning wrote:
One good question is: when you said that the innards of the switches
had "disintegrated" -- exactly what had happened? There's very little
variation in how those things are constructed inside. You may be able
to find new switches of the same size, rip out the old guts, and
replace them by new guts taken from the new switches.
Most usually it's the plastic parts that "disintegrate". I've replaced
over a dozen of these now (on various 11/40, 11/45 and 11/70 front
panels) and in 90% of the cases the platic part of the switch has broken
into numerous parts. Looking at the construction of the switches
doesn't inspire confidence in being able to do any sort of repair of the
switch itself.
And for those of you wondering, my supply of switches comes from "scrap"
front panels. Because of this, I'm getting *really* good at removing
the switch covers and unsoldering the switches without damaging either
(ie my transplants have been 100% successfull so far).
--
TTFN - Guy
7325
days inactive
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9 comments
6 participants
participants (6)
-
aw288＠osfn.org -
dickset＠amanda.spole.gov -
ggs＠shiresoft.com -
jwest＠classiccmp.org -
pkoning＠equallogic.com -
uban＠ubanproductions.com