[Amps] SB221: Can you saftely mix and run an Eimac 3-500Z with and RF Par...

[rlm]

   =F0  Peter -- I use 6%-Ag, 94% Sn.  It melts at 221=BCC.  It's not as=20=

strong as other silver-solders, but it can be soldered with an plain=20
vanilla soldering iron instead of a flame-thrower.
cheers


On Apr 5, 2004, at 6:51 AM, peter.chadwick at Zarlink.Com wrote:

>
>
>
>
> Rich said:
>
>> However, the old solder is Pb-Sn (lead-tin), which should not be =
mixed
> with silver solder,
>
>
> I'm not sure exactly what Rich means by 'silver solder' in this=20
> context. If
> he means the high temperature ( 600 - 800 deg C) stuff we use for =
model
> steam engine boilers and fittings, you have to get all of the lead/tin=20=

> out,
> or it won't solder at all. Lead/tin alloy will solder to silver solder=20=

> OK,
> but not the other way around. The 'silver solder'  I use has borax as =
a
> flux, needs a gap of around 0.001 to 0.002 inches to flow into, and=20
> runs
> beautifully.
>
> I suspect Rich means a 'HMP' - 'High Melting Point' alloy, containing=20=

> some
> silver, rather than a true silver solder like 'Easyflo' (which also
> contains cadmium, and needs particulalry good ventilation if you're=20
> going
> to do a lot of soldering).
>
> 73
>
> Peter G3RZP
>
>
>
Rich Measures, AG6K, 805.386.3734.  www.somis.org/