Wait a Minute Do those Cardas Caps Work

Are we talking about shorting plugs, or just plain dust caps. Shorting plugs are a good idea, not so much when the input is unused as when you sequence through that input with your selector switch, and may hear bad noises from the open circuit.

LOL @ army of Woody Allens! Now you've completely ruined it for me Rosstaman. :•)

How about combining Elizabeth's idea with that of Dave's or Hepl's ? Put a tiny square of aluminum foil up against the backside of the female RCA and slowly push the plastic cap over the jack. This will "form-fit" the foil and no need for tape. Much easier to work with at minimal expense. Thanks !!!

El: I've recommended using shunts on unused inputs for a LONG time. While direct shorts are normally good, many components that lack the proper isolation between inputs respond poorly to this trick. In such a situation, one should solder a low value resistor ( 50 - 500 ohms ) across a cheap RCA plug and use it. This simulates the typical load that most inputs would normally have on them and keeps the jacks from getting pitted at the same time. Phono inputs should use a very high value resistor i.e. many, many Kohms. Sean
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sean...FWIW..my Tandberg preamp came with shorting plugs for the MM and the MC inputs (not high R values). However this preamp has completely separate phono stages for the two inputs (all the circuitry is duplicated) so there really is no chance of crosstalk.

Hey Sean, I once put a tiny square of aluminum foil up against the backside of a female... and got the snot slapped out of me.