spamtrap1888 wrote:

On May 1, 2:25 pm, "Michael A. Terrell"
wrote:


The RCA jack was developed for radios to add a Phono input to sell
turntables instead of the existing acoustic phonos.

A friend's mother has an RCA radio with a Television jack. Apparently
it was "television ready" in that you could plug your speakerless,
audio-amplifier-free RCA television into it.

The problem with both the RCA plug and the Motorola plug, compared to
other coaxial plugs, is that the hot lead makes contact before the
ground does.


That's because they were never intended to be plugged in to equipment
under power, due to leakage currents in the AC powered equipment. There
is a Switchcraft version of the Phono/RCA that has a built in switch to
be used hot. It can be wired to short out the connector, until the plug
is inserted.

Explain want difference it would make on a car radio? that is the
only application it was designed for.


--
You can't fix stupid. You can't even put a Band-Aid™ on it, because it's
Teflon coated.