[Amps] New 4-1000A and New Amp design in works
Thu, 16 Jan 2003 13:08:37 -0800
> "we learned that good spotwelds are not sound
>unless they look like some of the metal has melted. In other words, a
>real pretty weld is really pretty weak. The solution is to increase the
>spotwelder current (and/or increase the weld-time)until the weld looks
>Good welds look good.
The spotwelds on Eimac/Salt Lake tubes looked good. The welds eventually
failed. The welds on Chinese 3-500s do not look as good but they do not
>If the weld looks nasty, it is probably not a good
>weld. It is a basic premise of welding that the material must be melted to
>be effective, unlike soldering. Soldering will not melt the materials,
>welding must. Good welds are a work of art.
- R. L. Measures, a.k.a. Rich..., 805.386.3734,AG6K,