[volt-nuts] Banana jack shorting straps

Rob Klein rob.klein at smalldesign.nl
Thu Nov 9 13:14:59 EST 2017


You gentlemen are aware that these things are available from Fluke at a fairly reasonable price?

http://nl.farnell.com/fluke/fluke-884x-short/lead-test-4-wire-fluke-884x-short/dp/1274092


⁣Met vriendelijke groet,
Rob Klein

verstuurd vanaf mijn smartphone​

Op 9 nov. 2017 14:12, om 14:12, "David C. Partridge" <david.partridge at perdrix.co.uk> schreef:
>Mark 
>
>I'm trying to imagine what you are describing - is this PCBs with 4mm
>banana plugs installed or a small PCB with two slots at 3/4" centres to
>match the socket spacing?
>
>If the latter is this intended to cover just two sockets or to short
>all four Force and Sense sockets together (if arranged like a 3458A)?
>
>Thanks
>Dave
>
>-----Original Message-----
>From: volt-nuts [mailto:volt-nuts-bounces at febo.com] On Behalf Of Mark
>Sims
>Sent: 09 November 2017 02:14
>To: volt-nuts at febo.com
>Subject: [volt-nuts] Banana jack shorting straps
>
>The main use of these would be shorting sense to drive jacks.  They
>could also be used for input shorts.  The advantage over bare copper
>would be the ENIG gold finish... bare copper quickly forms oxide layers
>and copper oxide has a horrible thermal EMF.  Granted, ENIG gold
>basically involves waving a bar of gold over the plating tank and
>hoping some gold atoms fall off.  The board house I use deposits a
>thicker layer than most.   You don't want to know what "hard gold"
>finish would cost.
>
>Using a PCB house to fab them is probably 20 times less expensive than
>having a machine shop do them out of solid copper... maybe 50 times
>less if you need to get them gold plated.
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