quietman wrote:Hi,
Sorry but I'm not sure where the bad advice is? I was just making a point about heat to the guy who said he was going to have another bash at new Xtals.....
- Where there are no leads to clamp onto (SM Xtal for example?) then sinking on the QC casing can keep the insides cool enough to not melt the potting or fry the quartz.
The can is at the
farthest point from the heat source, and in fact, the heat sink is going to conduct heat that direction. So your idea of subjecting the leads, on through the fine crystal mounts(metal), through the actual crystal, to the can with all that heat is totally non-advisable. IMO.
A home hobbyiest can't safely remount a SM (surface mount) crystal, unless they want to give it a go with silver epoxy, which can work. I have never seen a quartz oscillator with potting medium inside - I have chopped open a very large number for my edification. I've also successfully replaced thousands....for what that's worth.
I only suggested a flatter jawed clamp as it has better surface area, physically holds the part whilst doing heat sinking duty and doesn't get in the way like some larger holding tools.
The forum IS for exchanging ideas and learning - some of
my suggestions are good, some are bad. Same for all others who strive to do something. This is a relatively anonymous medium for most of you (unlike me), so we must not take our differences of opinion on technique too seriously. But consider their merit. In the Holy Bible it is suggested that "one man sharpens another, as steel sharpens steel". So true.
Peace. ~
http://www.retroleds.com -
Sales of vintage LED, LCD, analog watches,
parts and gadgets -
repair tutorials & tips
Nov. 2022 - back in business!! BItter divorce is in home stretch, come grabs some great deals, I had to open the safe . . . damn attorneys. piss.