[time-nuts] 10811 Repair - Voltage Check

Dr Bruce Griffiths bruce.griffiths at xtra.co.nz
Tue Jan 23 23:40:48 UTC 2007


Jim Palfreyman wrote:
> On Wednesday, January 24, 2007 at 11:30:20 AM, Discussion of precise time and frequency measurement wrote:
>
>   
>> Dr Bruce Griffiths wrote:
>>     
>
>   
>> The crystal leads are supposed to be welded to the crystal base.
>> The blue wire looks OK but the green and red wires are suspect.
>> When welding wires one doesn't use solder dipped multistrand wires.
>> Maybe the red green wires do not make good electrical contact with the 
>> crystal pins.
>>     
>
> I have to ask this...why wouldn't soldering work?
>
> Jim Palfreyman
>
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>   
Jim

Zinc chloride flux is recommended when soldering unplated Kovar leads.
One should probably avoid Zinc chloride flux around electronics.
Residues are quite corrosive.

Bruce




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