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The Elusive SMA Connector Finger Wrench

SMA Connector Finger Wrench - RF CafeSMA Connector Thumb Wheel Aluminum 5/16" Hex Connector Wrench - RF CafeUPDATE: Bracke Manufacturing now offers free SMA finger wrenches!

Many people have contacted me over the years searching for the little "finger wrenches," aka "torque multipliers" and "thumb wrenches," that many display vendors have handed out for free at trade show booths. Like a lot of people, I have one of those plastic SMA tools as well with Agilent's name on it. Other people reportedly have versions with LeCroy's, National Instruments', Noise Com's, and other companies' names on them. My e-mails to at least three companies have never gotten responses. Another request just arrived, so I again searched the Internet using terms like "sma thumb wrench," "sma finger wrench," "sma thumb wheel," "trade show gift wrench," "sma plastic wrench," "plastic connector wrench," and SMA Connector Finger Wrench - RF Cafemany other combinations. I also searched for images on the aforementioned companies' websites. A cheap plastic "finger wrench" did not turn up anywhere; however, a nice machined brass version did appear on eBay from Marki Microwave Thumbwheels for SMA / K (2.9 mm) / V (2.4 mm) RF Connectors - RF Cafe Mathews Engineering - SMA Quick Connect Thumb Wrench (+ Allen wrench), and Marki Microwave sells an anodized aluminum one. They make an F-type connector thumb wrench as well. I once again request that anyone who knows of a reliable source of these SMA thumb wrench tools let me know so that I can pass it along.

 

 

 

Wing Dings by CablePrep - RF CafeCable Tool Slotted Wrench Shield Key - RF CafeSMA Finger Wrench by Pulse Research Labs - RF CafeI also discovered plastic Wing Dings™ (far left) and a slotted wrench (near left) which are for 7/16" F-type connectors that might be useful.

Pulse Research Labs sells a different kind of SMA finger wrench (right).

 

 

 

 

 

Posted  January 23, 2014

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RF Cascade Workbook
RF Cascade Workbook is a very extensive system cascaded component Excel workbook that includes the standard Gain, NF, IP2, IP3, Psat calculations, input & output VSWR, noise BW, min/max tolerance, DC power cauculations, graphing of all RF parameters, and has a graphical block diagram tool. An extensive User's Guide is also included. - Only $35.
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