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wd4nmq wrote a few months ago about getting the wrong size connector
pins (female) when buying a "standard" 6 pin what is commonlly called a Molex plug for making up your own HF power cable. I just wonder why more people aren't screaming about this. I bought 3 plugs from two different dealers (don't remember who) at local hamfests about a year ago and ALL of them had too big female pins. After discovering the problem recently (cables already made, of course) I crudely bent in the pins so they would grab the male pins on the rigs. Wanting a better fix, last weekend at the Shelby, NC hamfest I bought a handfull of pins from Tower Electronics, not having seen the previous post. Well, they turned out to be even bigger. The closest I can find in diameter is canabalizing an old PC hard disk power connector and they're still a tad big measuring roughly .080-.085 - this is consistent with wd4nmq's measurement of the real pins on a HF rig of .075 (from memory). The PC pins are also too low current. Anyone find a source for pins? or whole connectors? Anyone else having problems with oversize pins (like arcing or melting the connector or your rig?) Maybe there's enough misalignment of the pins to cause some contact but I don't trust them. C.W. - w4cwg |
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