[Heathkit] Need IO-104 Oscilloscope Vertical Attenuator Switch

Donald Spoon drspoon at sbcglobal.net
Sun Mar 28 00:57:33 EDT 2010


I got the switch out and there are two pieces to the wafer that fit 
closely and cleanly together.  The terminals are not bent, but are 
"aged".  I suspect they will need cleaning. 

I am about to try your suggestion of using Super Glue tomorrow as soon 
as I can get some at Home Depot or Lowes.  How do you suggest using the 
baking soda?  Do I use it as a coating after I apply the glue before I 
join the pieces or after I join them and it sets??

Thanks!

-Don Spoon-
K0APK

Mike McCarty wrote:
> Donald Spoon wrote:
>   
>> I have a Heathkit IO-104 O'scope that appears to be in working order 
>> except for a broken rear wafer on the Vertical Attenuator Switch 
>> (SW2-5F).   Does anyone have a "junker" IO-104 that this switch could be 
>> liberated from?   I can probably get by with replacing just the rear 
>> wafer, but it looks like just replacing the entire switch would be about 
>>     
>
> Unless it's absolutely toast, you may be able to reglue it
> using cyanoacrylic cement ("super glue") hardened with some
> baking soda (not baking powder). It sets up instantly and
> very hard.
>
> Mike
>   



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