[Milsurplus] Metal to crystal bond

[Robert Nickels]

On 5/21/2020 7:36 PM, Bob kb8tq wrote:
>
> If it is indeed solder sealed, the “factory” approach is to have a 
> block on a hot plate.

I'd be pretty sure the factory method was to put the crystal-base 
subassembly into the can with a solder preform in between, then reflow 
the solder using an induction heater.   Here is a video showing the same 
process being used to solder RF connector assemblies:

https://www.youtube.com/watch?v=FFhKZEF_1yY

You can buy them online for under $10 on up, here's a video showing the 
smallest cheapest one (($6 from Bangood) being used to heat a PL-259 for 
soldering:

https://www.youtube.com/watch?v=xwOAhMHwyhQ

Bangood: 
https://usa.banggood.com/Geekcreit-5V-12V-ZVS-Induction-Heating-Power-Supply-Module-With-Coil-p-1015637.html

73, Bob W9RAN