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I use Kester 24-7150-00XX (62/36/2) solder for coax connectors. A 3.3% type 44 flux for instant wetting and works well on Silver, Gold, or Nickel plating and CCA center conductors. 2% Silver content for superior conductivity. 361~374F melting range.

For PTFE Dielectric coax, I use solder type PTFE dielectric, Silver/Gold plated, solder center pin connectors - PL-259 (RG-393) or ones that have the reducer built in (RG-401/U, RG-400, RG-142B).

For Foam Dielectric, I use clamp style PTFE dielectric, Silver/Gold plated, solder center pin connectors - PL-259 (RG-8X, LMR-240, LMR-400) and 7/16DIN (hardline). I don't care how good you think you are, you will melt the foam when soldering the shield. And if you aren't quick, you will melt the foam when soldering the center pin.

Haven't tried crimp style.

I don't use any Nylon Dielectric coax.

I have used 9913 & 9086 air core; not any more. The center conductor can migrate inside the shield, especially in a bend, and you lose your 50ohm impedance.

A good watch, especially for the "N" connector folks:
[MEDIA=youtube]cbpy7gb9ZbE[/MEDIA]

<blockquote data-quote="Dr_DX" data-source="post: 844821" data-attributes="member: 1260">I use Kester 24-7150-00XX (62/36/2) solder for coax connectors. A 3.3% type 44 flux for instant wetting and works well on Silver, Gold, or Nickel plating and CCA center conductors. 2% Silver content for superior conductivity. 361~374F melting range.For PTFE Dielectric coax, I use solder type PTFE dielectric, Silver/Gold plated, solder center pin connectors - PL-259 (RG-393) or ones that have the reducer built in (RG-401/U, RG-400, RG-142B).For Foam Dielectric, I use clamp style PTFE dielectric, Silver/Gold plated, solder center pin connectors - PL-259 (RG-8X, LMR-240, LMR-400) and 7/16DIN (hardline). I don&#039;t care how good you think you are, you will melt the foam when soldering the shield. And if you aren&#039;t quick, you will melt the foam when soldering the center pin. Haven&#039;t tried crimp style.I don&#039;t use any Nylon Dielectric coax.&nbsp;&nbsp; I have used 9913 &amp; 9086 air core; not any more. The center conductor can migrate inside the shield, especially in a bend, and you lose your 50ohm impedance.A good watch, especially for the &quot;N&quot; connector folks:[MEDIA=youtube]cbpy7gb9ZbE[/MEDIA]</blockquote>

[QUOTE="Dr_DX, post: 844821, member: 1260"] I use Kester 24-7150-00XX (62/36/2) solder for coax connectors. A 3.3% type 44 flux for instant wetting and works well on Silver, Gold, or Nickel plating and CCA center conductors. 2% Silver content for superior conductivity. 361~374F melting range. For PTFE Dielectric coax, I use solder type PTFE dielectric, Silver/Gold plated, solder center pin connectors - PL-259 (RG-393) or ones that have the reducer built in (RG-401/U, RG-400, RG-142B). For Foam Dielectric, I use clamp style PTFE dielectric, Silver/Gold plated, solder center pin connectors - PL-259 (RG-8X, LMR-240, LMR-400) and 7/16DIN (hardline). [B]I don't care how good you think you are, you will melt the foam when soldering the shield. And if you aren't quick, you will melt the foam when soldering the center pin. [/B] Haven't tried crimp style. I don't use any Nylon Dielectric coax. I have used 9913 & 9086 air core; not any more. The center conductor can migrate inside the shield, especially in a bend, and you lose your 50ohm impedance. A good watch, especially for the "N" connector folks: [MEDIA=youtube]cbpy7gb9ZbE[/MEDIA] [/QUOTE]

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