RCA phono jacks on Heath gear

Jim Berry basalop at GTE.NET
Sat Oct 31 15:46:09 EST 1998

Hello Group,

Bob Miller said:

> interconnects  are 50
> ohms and not a good match for F systems.

Help me on this one folks.  Is the impedance of a connector determined by
the pin diameter or the spacing between the pin and the connector outer

Is there really that much difference between 50 ohm and 70 ohm?

Does anyone know what the impedance of a RCA phono plug really is?  Does it
really matter?

I have been using and making up all kinds of jumpers using type F connectors
and RG-6 (70 ohm coax).  What if I was to use F connectors and 50 ohm RG-58?
That is if it can even be used with F connectors.

73 Jim K7SLI (Getting ready for all the gremlims and goblins to arrive)

While I am at it, anyone got a manual for a Heath IM-13 VTVM?

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