The problem is that tin-lead-silver alloys with 3% or more silver is
unobtanium now; nobody makes them any more, likely because of limited
demand caused by the cost of silver. If you want it you'll have to track
down old stock. Tek may recommend 3% or more silver, but surely 2% is
better than 0%.
Lead free solder with 3% silver is readily available; the SAC305 alloy that
is the most popular lead-free solder fills the bill for that. I'm fond of
the Special Blend solder that Sparkfun sells, with a small amount of
antimony added; it flows a bit better than standard SAC305. But most
lead-free solders have a higher melting point than 63/37 or 62/36/2
(bismuth alloys are the notable exception), so you'll have to work more
carefully with them.
On Mon, Dec 30, 2024 at 6:50?PM Dale H. Cook via groups.io <bridgewaterma=
[email protected]> wrote:
On 30 Dec 2024 11:15 am, Shirley Dulcey KE1L wrote:
If you would prefer the ease of use of tin/lead/silver solder, you should
look for Sn62Pb36Ag2 solder.
I am using a similar mix but with 3% Ag, because the Tek service manuals
specify a minimum of 3% Ag for use on the ceramic terminal strips.
--
Dale H. Cook, GR/HP/Tek Collector, Roanoke/Lynchburg, VA